merge: http://kernellabs.com/hg/~mkrufky/tda18271

From: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

29 files changed, 7617 insertions, 4843 deletions

diff --git a/linux/drivers/media/radio/Kconfig b/linux/drivers/media/radio/Kconfig
index 3315cac87..25a36ad60 100644
--- a/linux/drivers/media/radio/Kconfig
+++ b/linux/drivers/media/radio/Kconfig
@@ -288,16 +288,6 @@ config RADIO_TYPHOON
 	  To compile this driver as a module, choose M here: the
 	  module will be called radio-typhoon.
 
-config RADIO_TYPHOON_PROC_FS
-	bool "Support for /proc/radio-typhoon"
-	depends on PROC_FS && RADIO_TYPHOON
-	help
-	  Say Y here if you want the typhoon radio card driver to write
-	  status information (frequency, volume, muted, mute frequency,
-	  base address) to /proc/radio-typhoon. The file can be viewed with
-	  your favorite pager (i.e. use "more /proc/radio-typhoon" or "less
-	  /proc/radio-typhoon" or simply "cat /proc/radio-typhoon").
-
 config RADIO_TYPHOON_PORT
 	hex "Typhoon I/O port (0x316 or 0x336)"
 	depends on RADIO_TYPHOON=y
@@ -339,6 +329,29 @@ config RADIO_ZOLTRIX_PORT
 	help
 	  Enter the I/O port of your Zoltrix radio card.
 
+config I2C_SI4713
+	tristate "I2C driver for Silicon Labs Si4713 device"
+	depends on I2C && VIDEO_V4L2
+	---help---
+	  Say Y here if you want support to Si4713 I2C device.
+	  This device driver supports only i2c bus.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called si4713.
+
+config RADIO_SI4713
+	tristate "Silicon Labs Si4713 FM Radio Transmitter support"
+	depends on I2C && VIDEO_V4L2
+	select I2C_SI4713
+	---help---
+	  Say Y here if you want support to Si4713 FM Radio Transmitter.
+	  This device can transmit audio through FM. It can transmit
+	  EDS and EBDS signals as well. This module is the v4l2 radio
+	  interface for the i2c driver of this device.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-si4713.
+
 config USB_DSBR
 	tristate "D-Link/GemTek USB FM radio support"
 	depends on USB && VIDEO_V4L2
@@ -351,29 +364,11 @@ config USB_DSBR
 	  To compile this driver as a module, choose M here: the
 	  module will be called dsbr100.
 
-config USB_SI470X
-	tristate "Silicon Labs Si470x FM Radio Receiver support"
-	depends on USB && VIDEO_V4L2
-	---help---
-	  This is a driver for USB devices with the Silicon Labs SI470x
-	  chip. Currently these devices are known to work:
-	  - 10c4:818a: Silicon Labs USB FM Radio Reference Design
-	  - 06e1:a155: ADS/Tech FM Radio Receiver (formerly Instant FM Music)
-	  - 1b80:d700: KWorld USB FM Radio SnapMusic Mobile 700 (FM700)
-
-	  Sound is provided by the ALSA USB Audio/MIDI driver. Therefore
-	  if you don't want to use the device solely for RDS receiving,
-	  it is recommended to also select SND_USB_AUDIO.
-
-	  Please have a look at the documentation, especially on how
-	  to redirect the audio stream from the radio to your sound device:
-	  Documentation/video4linux/si470x.txt
-
-	  Say Y here if you want to connect this type of radio to your
-	  computer's USB port.
+config RADIO_SI470X
+	bool "Silicon Labs Si470x FM Radio Receiver support"
+	depends on VIDEO_V4L2
 
-	  To compile this driver as a module, choose M here: the
-	  module will be called radio-si470x.
+source "drivers/media/radio/si470x/Kconfig"
 
 config USB_MR800
 	tristate "AverMedia MR 800 USB FM radio support"
diff --git a/linux/drivers/media/radio/Makefile b/linux/drivers/media/radio/Makefile
index 0f2b35b3e..2a1be3bf4 100644
--- a/linux/drivers/media/radio/Makefile
+++ b/linux/drivers/media/radio/Makefile
@@ -15,9 +15,11 @@ obj-$(CONFIG_RADIO_ZOLTRIX) += radio-zoltrix.o
 obj-$(CONFIG_RADIO_GEMTEK) += radio-gemtek.o
 obj-$(CONFIG_RADIO_GEMTEK_PCI) += radio-gemtek-pci.o
 obj-$(CONFIG_RADIO_TRUST) += radio-trust.o
+obj-$(CONFIG_I2C_SI4713) += si4713-i2c.o
+obj-$(CONFIG_RADIO_SI4713) += radio-si4713.o
 obj-$(CONFIG_RADIO_MAESTRO) += radio-maestro.o
 obj-$(CONFIG_USB_DSBR) += dsbr100.o
-obj-$(CONFIG_USB_SI470X) += radio-si470x.o
+obj-$(CONFIG_RADIO_SI470X) += si470x/
 obj-$(CONFIG_USB_MR800) += radio-mr800.o
 obj-$(CONFIG_RADIO_TEA5764) += radio-tea5764.o
 
diff --git a/linux/drivers/media/radio/dsbr100.c b/linux/drivers/media/radio/dsbr100.c
index 155a75341..2bb867720 100644
--- a/linux/drivers/media/radio/dsbr100.c
+++ b/linux/drivers/media/radio/dsbr100.c
@@ -33,6 +33,13 @@
 
  History:
 
+ Version 0.46:
+	Removed usb_dsbr100_open/close calls and radio->users counter. Also,
+	radio->muted changed to radio->status and suspend/resume calls updated.
+
+ Version 0.45:
+	Converted to v4l2_device.
+
  Version 0.44:
 	Add suspend/resume functions, fix unplug of device,
 	a lot of cleanups and fixes by Alexey Klimov <klimov.linux@gmail.com>
@@ -88,7 +95,7 @@
 #include <linux/slab.h>
 #include <linux/input.h>
 #include <linux/videodev2.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
 #include <linux/usb.h>
 #include "compat.h"
@@ -98,39 +105,8 @@
  */
 #include <linux/version.h>	/* for KERNEL_VERSION MACRO	*/
 
-#define DRIVER_VERSION "v0.44"
-#define RADIO_VERSION KERNEL_VERSION(0, 4, 4)
-
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	},
-/* HINT: the disabled controls are only here to satify kradio and such apps */
-	{       .id             = V4L2_CID_AUDIO_VOLUME,
-		.flags          = V4L2_CTRL_FLAG_DISABLED,
-	},
-	{
-		.id             = V4L2_CID_AUDIO_BALANCE,
-		.flags          = V4L2_CTRL_FLAG_DISABLED,
-	},
-	{
-		.id             = V4L2_CID_AUDIO_BASS,
-		.flags          = V4L2_CTRL_FLAG_DISABLED,
-	},
-	{
-		.id             = V4L2_CID_AUDIO_TREBLE,
-		.flags          = V4L2_CTRL_FLAG_DISABLED,
-	},
-	{
-		.id             = V4L2_CID_AUDIO_LOUDNESS,
-		.flags          = V4L2_CTRL_FLAG_DISABLED,
-	},
-};
+#define DRIVER_VERSION "v0.46"
+#define RADIO_VERSION KERNEL_VERSION(0, 4, 6)
 
 #define DRIVER_AUTHOR "Markus Demleitner <msdemlei@tucana.harvard.edu>"
 #define DRIVER_DESC "D-Link DSB-R100 USB FM radio driver"
@@ -150,13 +126,15 @@ devices, that would be 76 and 91.  */
 #define FREQ_MAX 108.0
 #define FREQ_MUL 16000
 
+/* defines for radio->status */
+#define STARTED	0
+#define STOPPED	1
+
 #define videodev_to_radio(d) container_of(d, struct dsbr100_device, videodev)
 
 static int usb_dsbr100_probe(struct usb_interface *intf,
 			     const struct usb_device_id *id);
 static void usb_dsbr100_disconnect(struct usb_interface *intf);
-static int usb_dsbr100_open(struct file *file);
-static int usb_dsbr100_close(struct file *file);
 static int usb_dsbr100_suspend(struct usb_interface *intf,
 						pm_message_t message);
 static int usb_dsbr100_resume(struct usb_interface *intf);
@@ -168,13 +146,14 @@ module_param(radio_nr, int, 0);
 struct dsbr100_device {
 	struct usb_device *usbdev;
 	struct video_device videodev;
+	struct v4l2_device v4l2_dev;
+
 	u8 *transfer_buffer;
 	struct mutex lock;	/* buffer locking */
 	int curfreq;
 	int stereo;
-	int users;
 	int removed;
-	int muted;
+	int status;
 };
 
 static struct usb_device_id usb_dsbr100_device_table [] = {
@@ -230,7 +209,7 @@ static int dsbr100_start(struct dsbr100_device *radio)
 		goto usb_control_msg_failed;
 	}
 
-	radio->muted = 0;
+	radio->status = STARTED;
 	mutex_unlock(&radio->lock);
 	return (radio->transfer_buffer)[0];
 
@@ -273,7 +252,7 @@ static int dsbr100_stop(struct dsbr100_device *radio)
 		goto usb_control_msg_failed;
 	}
 
-	radio->muted = 1;
+	radio->status = STOPPED;
 	mutex_unlock(&radio->lock);
 	return (radio->transfer_buffer)[0];
 
@@ -287,12 +266,12 @@ usb_control_msg_failed:
 }
 
 /* set a frequency, freq is defined by v4l's TUNER_LOW, i.e. 1/16th kHz */
-static int dsbr100_setfreq(struct dsbr100_device *radio, int freq)
+static int dsbr100_setfreq(struct dsbr100_device *radio)
 {
 	int retval;
 	int request;
+	int freq = (radio->curfreq / 16 * 80) / 1000 + 856;
 
-	freq = (freq / 16 * 80) / 1000 + 856;
 	mutex_lock(&radio->lock);
 
 	retval = usb_control_msg(radio->usbdev,
@@ -387,6 +366,7 @@ static void usb_dsbr100_disconnect(struct usb_interface *intf)
 	mutex_unlock(&radio->lock);
 
 	video_unregister_device(&radio->videodev);
+	v4l2_device_disconnect(&radio->v4l2_dev);
 }
 
 
@@ -459,7 +439,7 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 	radio->curfreq = f->frequency;
 	mutex_unlock(&radio->lock);
 
-	retval = dsbr100_setfreq(radio, radio->curfreq);
+	retval = dsbr100_setfreq(radio);
 	if (retval < 0)
 		dev_warn(&radio->usbdev->dev, "Set frequency failed\n");
 	return 0;
@@ -482,14 +462,11 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 static int vidioc_queryctrl(struct file *file, void *priv,
 				struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
 	}
+
 	return -EINVAL;
 }
 
@@ -504,7 +481,7 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
-		ctrl->value = radio->muted;
+		ctrl->value = radio->status;
 		return 0;
 	}
 	return -EINVAL;
@@ -574,65 +551,27 @@ static int vidioc_s_audio(struct file *file, void *priv,
 	return 0;
 }
 
-static int usb_dsbr100_open(struct file *file)
-{
-	struct dsbr100_device *radio = video_drvdata(file);
-	int retval;
-
-	lock_kernel();
-	radio->users = 1;
-	radio->muted = 1;
-
-	retval = dsbr100_start(radio);
-	if (retval < 0) {
-		dev_warn(&radio->usbdev->dev,
-			 "Radio did not start up properly\n");
-		radio->users = 0;
-		unlock_kernel();
-		return -EIO;
-	}
-
-	retval = dsbr100_setfreq(radio, radio->curfreq);
-	if (retval < 0)
-		dev_warn(&radio->usbdev->dev,
-			"set frequency failed\n");
-
-	unlock_kernel();
-	return 0;
-}
-
-static int usb_dsbr100_close(struct file *file)
-{
-	struct dsbr100_device *radio = video_drvdata(file);
-	int retval;
-
-	if (!radio)
-		return -ENODEV;
-
-	mutex_lock(&radio->lock);
-	radio->users = 0;
-	mutex_unlock(&radio->lock);
-
-	if (!radio->removed) {
-		retval = dsbr100_stop(radio);
-		if (retval < 0) {
-			dev_warn(&radio->usbdev->dev,
-				"dsbr100_stop failed\n");
-		}
-
-	}
-	return 0;
-}
-
 /* Suspend device - stop device. */
 static int usb_dsbr100_suspend(struct usb_interface *intf, pm_message_t message)
 {
 	struct dsbr100_device *radio = usb_get_intfdata(intf);
 	int retval;
 
-	retval = dsbr100_stop(radio);
-	if (retval < 0)
-		dev_warn(&intf->dev, "dsbr100_stop failed\n");
+	if (radio->status == STARTED) {
+		retval = dsbr100_stop(radio);
+		if (retval < 0)
+			dev_warn(&intf->dev, "dsbr100_stop failed\n");
+
+		/* After dsbr100_stop() status set to STOPPED.
+		 * If we want driver to start radio on resume
+		 * we set status equal to STARTED.
+		 * On resume we will check status and run radio if needed.
+		 */
+
+		mutex_lock(&radio->lock);
+		radio->status = STARTED;
+		mutex_unlock(&radio->lock);
+	}
 
 	dev_info(&intf->dev, "going into suspend..\n");
 
@@ -645,9 +584,11 @@ static int usb_dsbr100_resume(struct usb_interface *intf)
 	struct dsbr100_device *radio = usb_get_intfdata(intf);
 	int retval;
 
-	retval = dsbr100_start(radio);
-	if (retval < 0)
-		dev_warn(&intf->dev, "dsbr100_start failed\n");
+	if (radio->status == STARTED) {
+		retval = dsbr100_start(radio);
+		if (retval < 0)
+			dev_warn(&intf->dev, "dsbr100_start failed\n");
+	}
 
 	dev_info(&intf->dev, "coming out of suspend..\n");
 
@@ -659,6 +600,7 @@ static void usb_dsbr100_video_device_release(struct video_device *videodev)
 {
 	struct dsbr100_device *radio = videodev_to_radio(videodev);
 
+	v4l2_device_unregister(&radio->v4l2_dev);
 	kfree(radio->transfer_buffer);
 	kfree(radio);
 }
@@ -666,8 +608,6 @@ static void usb_dsbr100_video_device_release(struct video_device *videodev)
 /* File system interface */
 static const struct v4l2_file_operations usb_dsbr100_fops = {
 	.owner		= THIS_MODULE,
-	.open		= usb_dsbr100_open,
-	.release	= usb_dsbr100_close,
 	.ioctl		= video_ioctl2,
 };
 
@@ -686,22 +626,15 @@ static const struct v4l2_ioctl_ops usb_dsbr100_ioctl_ops = {
 	.vidioc_s_input     = vidioc_s_input,
 };
 
-/* V4L2 interface */
-static struct video_device dsbr100_videodev_data = {
-	.name		= "D-Link DSB-R 100",
-	.fops		= &usb_dsbr100_fops,
-	.ioctl_ops 	= &usb_dsbr100_ioctl_ops,
-	.release	= usb_dsbr100_video_device_release,
-};
-
 /* check if the device is present and register with v4l and usb if it is */
 static int usb_dsbr100_probe(struct usb_interface *intf,
 				const struct usb_device_id *id)
 {
 	struct dsbr100_device *radio;
+	struct v4l2_device *v4l2_dev;
 	int retval;
 
-	radio = kmalloc(sizeof(struct dsbr100_device), GFP_KERNEL);
+	radio = kzalloc(sizeof(struct dsbr100_device), GFP_KERNEL);
 
 	if (!radio)
 		return -ENOMEM;
@@ -713,17 +646,35 @@ static int usb_dsbr100_probe(struct usb_interface *intf,
 		return -ENOMEM;
 	}
 
+	v4l2_dev = &radio->v4l2_dev;
+
+	retval = v4l2_device_register(&intf->dev, v4l2_dev);
+	if (retval < 0) {
+		v4l2_err(v4l2_dev, "couldn't register v4l2_device\n");
+		kfree(radio->transfer_buffer);
+		kfree(radio);
+		return retval;
+	}
+
+	strlcpy(radio->videodev.name, v4l2_dev->name, sizeof(radio->videodev.name));
+	radio->videodev.v4l2_dev = v4l2_dev;
+	radio->videodev.fops = &usb_dsbr100_fops;
+	radio->videodev.ioctl_ops = &usb_dsbr100_ioctl_ops;
+	radio->videodev.release = usb_dsbr100_video_device_release;
+
 	mutex_init(&radio->lock);
-	radio->videodev = dsbr100_videodev_data;
 
 	radio->removed = 0;
-	radio->users = 0;
 	radio->usbdev = interface_to_usbdev(intf);
 	radio->curfreq = FREQ_MIN * FREQ_MUL;
+	radio->status = STOPPED;
+
 	video_set_drvdata(&radio->videodev, radio);
+
 	retval = video_register_device(&radio->videodev, VFL_TYPE_RADIO, radio_nr);
 	if (retval < 0) {
-		dev_err(&intf->dev, "couldn't register video device\n");
+		v4l2_err(v4l2_dev, "couldn't register video device\n");
+		v4l2_device_unregister(v4l2_dev);
 		kfree(radio->transfer_buffer);
 		kfree(radio);
 		return -EIO;
diff --git a/linux/drivers/media/radio/radio-aimslab.c b/linux/drivers/media/radio/radio-aimslab.c
index 384aa928f..0089e38b1 100644
--- a/linux/drivers/media/radio/radio-aimslab.c
+++ b/linux/drivers/media/radio/radio-aimslab.c
@@ -32,15 +32,16 @@
 #include <linux/init.h>		/* Initdata			*/
 #include <linux/ioport.h>	/* request_region		*/
 #include <linux/delay.h>	/* udelay			*/
-#include <asm/io.h>		/* outb, outb_p			*/
-#include <asm/uaccess.h>	/* copy to/from user		*/
-#include "compat.h"
 #include <linux/videodev2.h>	/* kernel radio structs		*/
-#include <media/v4l2-common.h>
+#include <linux/version.h>	/* for KERNEL_VERSION MACRO	*/
+#include <linux/io.h>		/* outb, outb_p			*/
+#include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
+#include "compat.h"
 
-#include <linux/version.h>	/* for KERNEL_VERSION MACRO	*/
-#define RADIO_VERSION KERNEL_VERSION(0,0,2)
+MODULE_AUTHOR("M.Kirkwood");
+MODULE_DESCRIPTION("A driver for the RadioTrack/RadioReveal radio card.");
+MODULE_LICENSE("GPL");
 
 #ifndef CONFIG_RADIO_RTRACK_PORT
 #define CONFIG_RADIO_RTRACK_PORT -1
@@ -48,86 +49,95 @@
 
 static int io = CONFIG_RADIO_RTRACK_PORT;
 static int radio_nr = -1;
-static struct mutex lock;
 
-struct rt_device
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, "I/O address of the RadioTrack card (0x20f or 0x30f)");
+module_param(radio_nr, int, 0);
+
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
+
+struct rtrack
 {
-	unsigned long in_use;
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
 	int port;
 	int curvol;
 	unsigned long curfreq;
 	int muted;
+	int io;
+	struct mutex lock;
 };
 
+static struct rtrack rtrack_card;
 
 /* local things */
 
 static void sleep_delay(long n)
 {
 	/* Sleep nicely for 'n' uS */
-	int d=n/msecs_to_jiffies(1000);
-	if(!d)
+	int d = n / msecs_to_jiffies(1000);
+	if (!d)
 		udelay(n);
 	else
 		msleep(jiffies_to_msecs(d));
 }
 
-static void rt_decvol(void)
+static void rt_decvol(struct rtrack *rt)
 {
-	outb(0x58, io);		/* volume down + sigstr + on	*/
+	outb(0x58, rt->io);		/* volume down + sigstr + on	*/
 	sleep_delay(100000);
-	outb(0xd8, io);		/* volume steady + sigstr + on	*/
+	outb(0xd8, rt->io);		/* volume steady + sigstr + on	*/
 }
 
-static void rt_incvol(void)
+static void rt_incvol(struct rtrack *rt)
 {
-	outb(0x98, io);		/* volume up + sigstr + on	*/
+	outb(0x98, rt->io);		/* volume up + sigstr + on	*/
 	sleep_delay(100000);
-	outb(0xd8, io);		/* volume steady + sigstr + on	*/
+	outb(0xd8, rt->io);		/* volume steady + sigstr + on	*/
 }
 
-static void rt_mute(struct rt_device *dev)
+static void rt_mute(struct rtrack *rt)
 {
-	dev->muted = 1;
-	mutex_lock(&lock);
-	outb(0xd0, io);			/* volume steady, off		*/
-	mutex_unlock(&lock);
+	rt->muted = 1;
+	mutex_lock(&rt->lock);
+	outb(0xd0, rt->io);		/* volume steady, off		*/
+	mutex_unlock(&rt->lock);
 }
 
-static int rt_setvol(struct rt_device *dev, int vol)
+static int rt_setvol(struct rtrack *rt, int vol)
 {
 	int i;
 
-	mutex_lock(&lock);
+	mutex_lock(&rt->lock);
 
-	if(vol == dev->curvol) {	/* requested volume = current */
-		if (dev->muted) {	/* user is unmuting the card  */
-			dev->muted = 0;
-			outb (0xd8, io);	/* enable card */
+	if (vol == rt->curvol) {	/* requested volume = current */
+		if (rt->muted) {	/* user is unmuting the card  */
+			rt->muted = 0;
+			outb(0xd8, rt->io);	/* enable card */
 		}
-		mutex_unlock(&lock);
+		mutex_unlock(&rt->lock);
 		return 0;
 	}
 
-	if(vol == 0) {			/* volume = 0 means mute the card */
-		outb(0x48, io);		/* volume down but still "on"	*/
+	if (vol == 0) {			/* volume = 0 means mute the card */
+		outb(0x48, rt->io);	/* volume down but still "on"	*/
 		sleep_delay(2000000);	/* make sure it's totally down	*/
-		outb(0xd0, io);		/* volume steady, off		*/
-		dev->curvol = 0;	/* track the volume state!	*/
-		mutex_unlock(&lock);
+		outb(0xd0, rt->io);	/* volume steady, off		*/
+		rt->curvol = 0;		/* track the volume state!	*/
+		mutex_unlock(&rt->lock);
 		return 0;
 	}
 
-	dev->muted = 0;
-	if(vol > dev->curvol)
-		for(i = dev->curvol; i < vol; i++)
-			rt_incvol();
+	rt->muted = 0;
+	if (vol > rt->curvol)
+		for (i = rt->curvol; i < vol; i++)
+			rt_incvol(rt);
 	else
-		for(i = dev->curvol; i > vol; i--)
-			rt_decvol();
+		for (i = rt->curvol; i > vol; i--)
+			rt_decvol(rt);
 
-	dev->curvol = vol;
-	mutex_unlock(&lock);
+	rt->curvol = vol;
+	mutex_unlock(&rt->lock);
 	return 0;
 }
 
@@ -136,155 +146,137 @@ static int rt_setvol(struct rt_device *dev, int vol)
  * and bit 4 (+16) is to keep the signal strength meter enabled
  */
 
-static void send_0_byte(int port, struct rt_device *dev)
+static void send_0_byte(struct rtrack *rt)
 {
-	if ((dev->curvol == 0) || (dev->muted)) {
-		outb_p(128+64+16+  1, port);   /* wr-enable + data low */
-		outb_p(128+64+16+2+1, port);   /* clock */
+	if (rt->curvol == 0 || rt->muted) {
+		outb_p(128+64+16+  1, rt->io);   /* wr-enable + data low */
+		outb_p(128+64+16+2+1, rt->io);   /* clock */
 	}
 	else {
-		outb_p(128+64+16+8+  1, port);  /* on + wr-enable + data low */
-		outb_p(128+64+16+8+2+1, port);  /* clock */
+		outb_p(128+64+16+8+  1, rt->io);  /* on + wr-enable + data low */
+		outb_p(128+64+16+8+2+1, rt->io);  /* clock */
 	}
 	sleep_delay(1000);
 }
 
-static void send_1_byte(int port, struct rt_device *dev)
+static void send_1_byte(struct rtrack *rt)
 {
-	if ((dev->curvol == 0) || (dev->muted)) {
-		outb_p(128+64+16+4  +1, port);   /* wr-enable+data high */
-		outb_p(128+64+16+4+2+1, port);   /* clock */
+	if (rt->curvol == 0 || rt->muted) {
+		outb_p(128+64+16+4  +1, rt->io);   /* wr-enable+data high */
+		outb_p(128+64+16+4+2+1, rt->io);   /* clock */
 	}
 	else {
-		outb_p(128+64+16+8+4  +1, port); /* on+wr-enable+data high */
-		outb_p(128+64+16+8+4+2+1, port); /* clock */
+		outb_p(128+64+16+8+4  +1, rt->io); /* on+wr-enable+data high */
+		outb_p(128+64+16+8+4+2+1, rt->io); /* clock */
 	}
 
 	sleep_delay(1000);
 }
 
-static int rt_setfreq(struct rt_device *dev, unsigned long freq)
+static int rt_setfreq(struct rtrack *rt, unsigned long freq)
 {
 	int i;
 
-	/* adapted from radio-aztech.c */
+	mutex_lock(&rt->lock);			/* Stop other ops interfering */
+
+	rt->curfreq = freq;
 
 	/* now uses VIDEO_TUNER_LOW for fine tuning */
 
 	freq += 171200;			/* Add 10.7 MHz IF 		*/
 	freq /= 800;			/* Convert to 50 kHz units	*/
 
-	mutex_lock(&lock);			/* Stop other ops interfering */
-
-	send_0_byte (io, dev);		/*  0: LSB of frequency		*/
+	send_0_byte(rt);		/*  0: LSB of frequency		*/
 
 	for (i = 0; i < 13; i++)	/*   : frequency bits (1-13)	*/
 		if (freq & (1 << i))
-			send_1_byte (io, dev);
+			send_1_byte(rt);
 		else
-			send_0_byte (io, dev);
+			send_0_byte(rt);
 
-	send_0_byte (io, dev);		/* 14: test bit - always 0    */
-	send_0_byte (io, dev);		/* 15: test bit - always 0    */
+	send_0_byte(rt);		/* 14: test bit - always 0    */
+	send_0_byte(rt);		/* 15: test bit - always 0    */
 
-	send_0_byte (io, dev);		/* 16: band data 0 - always 0 */
-	send_0_byte (io, dev);		/* 17: band data 1 - always 0 */
-	send_0_byte (io, dev);		/* 18: band data 2 - always 0 */
-	send_0_byte (io, dev);		/* 19: time base - always 0   */
+	send_0_byte(rt);		/* 16: band data 0 - always 0 */
+	send_0_byte(rt);		/* 17: band data 1 - always 0 */
+	send_0_byte(rt);		/* 18: band data 2 - always 0 */
+	send_0_byte(rt);		/* 19: time base - always 0   */
 
-	send_0_byte (io, dev);		/* 20: spacing (0 = 25 kHz)   */
-	send_1_byte (io, dev);		/* 21: spacing (1 = 25 kHz)   */
-	send_0_byte (io, dev);		/* 22: spacing (0 = 25 kHz)   */
-	send_1_byte (io, dev);		/* 23: AM/FM (FM = 1, always) */
+	send_0_byte(rt);		/* 20: spacing (0 = 25 kHz)   */
+	send_1_byte(rt);		/* 21: spacing (1 = 25 kHz)   */
+	send_0_byte(rt);		/* 22: spacing (0 = 25 kHz)   */
+	send_1_byte(rt);		/* 23: AM/FM (FM = 1, always) */
 
-	if ((dev->curvol == 0) || (dev->muted))
-		outb (0xd0, io);	/* volume steady + sigstr */
+	if (rt->curvol == 0 || rt->muted)
+		outb(0xd0, rt->io);	/* volume steady + sigstr */
 	else
-		outb (0xd8, io);	/* volume steady + sigstr + on */
+		outb(0xd8, rt->io);	/* volume steady + sigstr + on */
 
-	mutex_unlock(&lock);
+	mutex_unlock(&rt->lock);
 
 	return 0;
 }
 
-static int rt_getsigstr(struct rt_device *dev)
+static int rt_getsigstr(struct rtrack *rt)
 {
-	if (inb(io) & 2)	/* bit set = no signal present	*/
-		return 0;
-	return 1;		/* signal present		*/
-}
+	int sig = 1;
 
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	},{
-		.id            = V4L2_CID_AUDIO_VOLUME,
-		.name          = "Volume",
-		.minimum       = 0,
-		.maximum       = 0xff,
-		.step          = 1,
-		.default_value = 0xff,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-	}
-};
+	mutex_lock(&rt->lock);
+	if (inb(rt->io) & 2)	/* bit set = no signal present	*/
+		sig = 0;
+	mutex_unlock(&rt->lock);
+	return sig;
+}
 
 static int vidioc_querycap(struct file *file, void  *priv,
 					struct v4l2_capability *v)
 {
 	strlcpy(v->driver, "radio-aimslab", sizeof(v->driver));
 	strlcpy(v->card, "RadioTrack", sizeof(v->card));
-	sprintf(v->bus_info, "ISA");
+	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
 	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
 static int vidioc_g_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	struct rt_device *rt = video_drvdata(file);
+	struct rtrack *rt = video_drvdata(file);
 
 	if (v->index > 0)
 		return -EINVAL;
 
-	strcpy(v->name, "FM");
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
-	v->rangelow = (87*16000);
-	v->rangehigh = (108*16000);
+	v->rangelow = 87 * 16000;
+	v->rangehigh = 108 * 16000;
 	v->rxsubchans = V4L2_TUNER_SUB_MONO;
 	v->capability = V4L2_TUNER_CAP_LOW;
 	v->audmode = V4L2_TUNER_MODE_MONO;
-	v->signal = 0xffff*rt_getsigstr(rt);
+	v->signal = 0xffff * rt_getsigstr(rt);
 	return 0;
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
-	return 0;
+	return v->index ? -EINVAL : 0;
 }
 
 static int vidioc_s_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct rt_device *rt = video_drvdata(file);
+	struct rtrack *rt = video_drvdata(file);
 
-	rt->curfreq = f->frequency;
-	rt_setfreq(rt, rt->curfreq);
+	rt_setfreq(rt, f->frequency);
 	return 0;
 }
 
 static int vidioc_g_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct rt_device *rt = video_drvdata(file);
+	struct rtrack *rt = video_drvdata(file);
 
 	f->type = V4L2_TUNER_RADIO;
 	f->frequency = rt->curfreq;
@@ -294,14 +286,11 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 static int vidioc_queryctrl(struct file *file, void *priv,
 					struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]),
-						sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 0xff, 1, 0xff);
 	}
 	return -EINVAL;
 }
@@ -309,14 +298,14 @@ static int vidioc_queryctrl(struct file *file, void *priv,
 static int vidioc_g_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct rt_device *rt = video_drvdata(file);
+	struct rtrack *rt = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
 		ctrl->value = rt->muted;
 		return 0;
 	case V4L2_CID_AUDIO_VOLUME:
-		ctrl->value = rt->curvol * 6554;
+		ctrl->value = rt->curvol;
 		return 0;
 	}
 	return -EINVAL;
@@ -325,33 +314,22 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 static int vidioc_s_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct rt_device *rt = video_drvdata(file);
+	struct rtrack *rt = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
 		if (ctrl->value)
 			rt_mute(rt);
 		else
-			rt_setvol(rt,rt->curvol);
+			rt_setvol(rt, rt->curvol);
 		return 0;
 	case V4L2_CID_AUDIO_VOLUME:
-		rt_setvol(rt,ctrl->value);
+		rt_setvol(rt, ctrl->value);
 		return 0;
 	}
 	return -EINVAL;
 }
 
-static int vidioc_g_audio (struct file *file, void *priv,
-					struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
-}
-
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 {
 	*i = 0;
@@ -360,36 +338,26 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
-	return 0;
+	return i ? -EINVAL : 0;
 }
 
-static int vidioc_s_audio(struct file *file, void *priv,
+static int vidioc_g_audio(struct file *file, void *priv,
 					struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
-static struct rt_device rtrack_unit;
-
-static int rtrack_exclusive_open(struct file *file)
-{
-	return test_and_set_bit(0, &rtrack_unit.in_use) ? -EBUSY : 0;
-}
-
-static int rtrack_exclusive_release(struct file *file)
+static int vidioc_s_audio(struct file *file, void *priv,
+					struct v4l2_audio *a)
 {
-	clear_bit(0, &rtrack_unit.in_use);
-	return 0;
+	return a->index ? -EINVAL : 0;
 }
 
 static const struct v4l2_file_operations rtrack_fops = {
 	.owner		= THIS_MODULE,
-	.open           = rtrack_exclusive_open,
-	.release        = rtrack_exclusive_release,
 	.ioctl		= video_ioctl2,
 };
 
@@ -408,64 +376,69 @@ static const struct v4l2_ioctl_ops rtrack_ioctl_ops = {
 	.vidioc_s_ctrl      = vidioc_s_ctrl,
 };
 
-static struct video_device rtrack_radio = {
-	.name		= "RadioTrack radio",
-	.fops           = &rtrack_fops,
-	.ioctl_ops 	= &rtrack_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
 static int __init rtrack_init(void)
 {
-	if(io==-1)
-	{
-		printk(KERN_ERR "You must set an I/O address with io=0x???\n");
+	struct rtrack *rt = &rtrack_card;
+	struct v4l2_device *v4l2_dev = &rt->v4l2_dev;
+	int res;
+
+	strlcpy(v4l2_dev->name, "rtrack", sizeof(v4l2_dev->name));
+	rt->io = io;
+
+	if (rt->io == -1) {
+		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x20f or 0x30f\n");
 		return -EINVAL;
 	}
 
-	if (!request_region(io, 2, "rtrack"))
-	{
-		printk(KERN_ERR "rtrack: port 0x%x already in use\n", io);
+	if (!request_region(rt->io, 2, "rtrack")) {
+		v4l2_err(v4l2_dev, "port 0x%x already in use\n", rt->io);
 		return -EBUSY;
 	}
 
-	video_set_drvdata(&rtrack_radio, &rtrack_unit);
+	res = v4l2_device_register(NULL, v4l2_dev);
+	if (res < 0) {
+		release_region(rt->io, 2);
+		v4l2_err(v4l2_dev, "could not register v4l2_device\n");
+		return res;
+	}
+
+	strlcpy(rt->vdev.name, v4l2_dev->name, sizeof(rt->vdev.name));
+	rt->vdev.v4l2_dev = v4l2_dev;
+	rt->vdev.fops = &rtrack_fops;
+	rt->vdev.ioctl_ops = &rtrack_ioctl_ops;
+	rt->vdev.release = video_device_release_empty;
+	video_set_drvdata(&rt->vdev, rt);
 
-	if (video_register_device(&rtrack_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
-		release_region(io, 2);
+	if (video_register_device(&rt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(&rt->v4l2_dev);
+		release_region(rt->io, 2);
 		return -EINVAL;
 	}
-	printk(KERN_INFO "AIMSlab RadioTrack/RadioReveal card driver.\n");
+	v4l2_info(v4l2_dev, "AIMSlab RadioTrack/RadioReveal card driver.\n");
 
 	/* Set up the I/O locking */
 
-	mutex_init(&lock);
+	mutex_init(&rt->lock);
 
 	/* mute card - prevents noisy bootups */
 
 	/* this ensures that the volume is all the way down  */
-	outb(0x48, io);		/* volume down but still "on"	*/
+	outb(0x48, rt->io);		/* volume down but still "on"	*/
 	sleep_delay(2000000);	/* make sure it's totally down	*/
-	outb(0xc0, io);		/* steady volume, mute card	*/
-	rtrack_unit.curvol = 0;
+	outb(0xc0, rt->io);		/* steady volume, mute card	*/
 
 	return 0;
 }
 
-MODULE_AUTHOR("M.Kirkwood");
-MODULE_DESCRIPTION("A driver for the RadioTrack/RadioReveal radio card.");
-MODULE_LICENSE("GPL");
-
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the RadioTrack card (0x20f or 0x30f)");
-module_param(radio_nr, int, 0);
-
-static void __exit cleanup_rtrack_module(void)
+static void __exit rtrack_exit(void)
 {
-	video_unregister_device(&rtrack_radio);
-	release_region(io,2);
+	struct rtrack *rt = &rtrack_card;
+
+	video_unregister_device(&rt->vdev);
+	v4l2_device_unregister(&rt->v4l2_dev);
+	release_region(rt->io, 2);
 }
 
 module_init(rtrack_init);
-module_exit(cleanup_rtrack_module);
+module_exit(rtrack_exit);
 
diff --git a/linux/drivers/media/radio/radio-aztech.c b/linux/drivers/media/radio/radio-aztech.c
index d4d5babcd..1ca64a92f 100644
--- a/linux/drivers/media/radio/radio-aztech.c
+++ b/linux/drivers/media/radio/radio-aztech.c
@@ -29,34 +29,16 @@
 #include <linux/init.h>		/* Initdata			*/
 #include <linux/ioport.h>	/* request_region		*/
 #include <linux/delay.h>	/* udelay			*/
-#include <asm/io.h>		/* outb, outb_p			*/
-#include <asm/uaccess.h>	/* copy to/from user		*/
-#include "compat.h"
 #include <linux/videodev2.h>	/* kernel radio structs		*/
-#include <media/v4l2-common.h>
+#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
+#include <linux/io.h>		/* outb, outb_p			*/
+#include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
+#include "compat.h"
 
-#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
-#define RADIO_VERSION KERNEL_VERSION(0,0,2)
-
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	},{
-		.id            = V4L2_CID_AUDIO_VOLUME,
-		.name          = "Volume",
-		.minimum       = 0,
-		.maximum       = 0xff,
-		.step          = 1,
-		.default_value = 0xff,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-	}
-};
+MODULE_AUTHOR("Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
+MODULE_DESCRIPTION("A driver for the Aztech radio card.");
+MODULE_LICENSE("GPL");
 
 /* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */
 
@@ -67,55 +49,64 @@ static struct v4l2_queryctrl radio_qctrl[] = {
 static int io = CONFIG_RADIO_AZTECH_PORT;
 static int radio_nr = -1;
 static int radio_wait_time = 1000;
-static struct mutex lock;
 
-struct az_device
+module_param(io, int, 0);
+module_param(radio_nr, int, 0);
+MODULE_PARM_DESC(io, "I/O address of the Aztech card (0x350 or 0x358)");
+
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
+
+struct aztech
 {
-	unsigned long in_use;
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	int io;
 	int curvol;
 	unsigned long curfreq;
 	int stereo;
+	struct mutex lock;
 };
 
+static struct aztech aztech_card;
+
 static int volconvert(int level)
 {
-	level>>=14;		/* Map 16bits down to 2 bit */
-	level&=3;
+	level >>= 14;		/* Map 16bits down to 2 bit */
+	level &= 3;
 
 	/* convert to card-friendly values */
-	switch (level)
-	{
-		case 0:
-			return 0;
-		case 1:
-			return 1;
-		case 2:
-			return 4;
-		case 3:
-			return 5;
+	switch (level) {
+	case 0:
+		return 0;
+	case 1:
+		return 1;
+	case 2:
+		return 4;
+	case 3:
+		return 5;
 	}
 	return 0;	/* Quieten gcc */
 }
 
-static void send_0_byte (struct az_device *dev)
+static void send_0_byte(struct aztech *az)
 {
 	udelay(radio_wait_time);
-	outb_p(2+volconvert(dev->curvol), io);
-	outb_p(64+2+volconvert(dev->curvol), io);
+	outb_p(2 + volconvert(az->curvol), az->io);
+	outb_p(64 + 2 + volconvert(az->curvol), az->io);
 }
 
-static void send_1_byte (struct az_device *dev)
+static void send_1_byte(struct aztech *az)
 {
 	udelay (radio_wait_time);
-	outb_p(128+2+volconvert(dev->curvol), io);
-	outb_p(128+64+2+volconvert(dev->curvol), io);
+	outb_p(128 + 2 + volconvert(az->curvol), az->io);
+	outb_p(128 + 64 + 2 + volconvert(az->curvol), az->io);
 }
 
-static int az_setvol(struct az_device *dev, int vol)
+static int az_setvol(struct aztech *az, int vol)
 {
-	mutex_lock(&lock);
-	outb (volconvert(vol), io);
-	mutex_unlock(&lock);
+	mutex_lock(&az->lock);
+	outb(volconvert(vol), az->io);
+	mutex_unlock(&az->lock);
 	return 0;
 }
 
@@ -127,116 +118,110 @@ static int az_setvol(struct az_device *dev, int vol)
  *
  */
 
-static int az_getsigstr(struct az_device *dev)
+static int az_getsigstr(struct aztech *az)
 {
-	if (inb(io) & 2)	/* bit set = no signal present */
-		return 0;
-	return 1;		/* signal present */
+	int sig = 1;
+
+	mutex_lock(&az->lock);
+	if (inb(az->io) & 2)	/* bit set = no signal present */
+		sig = 0;
+	mutex_unlock(&az->lock);
+	return sig;
 }
 
-static int az_getstereo(struct az_device *dev)
+static int az_getstereo(struct aztech *az)
 {
-	if (inb(io) & 1) 	/* bit set = mono */
-		return 0;
-	return 1;		/* stereo */
+	int stereo = 1;
+
+	mutex_lock(&az->lock);
+	if (inb(az->io) & 1) 	/* bit set = mono */
+		stereo = 0;
+	mutex_unlock(&az->lock);
+	return stereo;
 }
 
-static int az_setfreq(struct az_device *dev, unsigned long frequency)
+static int az_setfreq(struct aztech *az, unsigned long frequency)
 {
 	int  i;
 
+	mutex_lock(&az->lock);
+
+	az->curfreq = frequency;
 	frequency += 171200;		/* Add 10.7 MHz IF		*/
 	frequency /= 800;		/* Convert to 50 kHz units	*/
 
-	mutex_lock(&lock);
-
-	send_0_byte (dev);		/*  0: LSB of frequency       */
+	send_0_byte(az);		/*  0: LSB of frequency       */
 
 	for (i = 0; i < 13; i++)	/*   : frequency bits (1-13)  */
 		if (frequency & (1 << i))
-			send_1_byte (dev);
+			send_1_byte(az);
 		else
-			send_0_byte (dev);
+			send_0_byte(az);
 
-	send_0_byte (dev);		/* 14: test bit - always 0    */
-	send_0_byte (dev);		/* 15: test bit - always 0    */
-	send_0_byte (dev);		/* 16: band data 0 - always 0 */
-	if (dev->stereo)		/* 17: stereo (1 to enable)   */
-		send_1_byte (dev);
+	send_0_byte(az);		/* 14: test bit - always 0    */
+	send_0_byte(az);		/* 15: test bit - always 0    */
+	send_0_byte(az);		/* 16: band data 0 - always 0 */
+	if (az->stereo)		/* 17: stereo (1 to enable)   */
+		send_1_byte(az);
 	else
-		send_0_byte (dev);
+		send_0_byte(az);
 
-	send_1_byte (dev);		/* 18: band data 1 - unknown  */
-	send_0_byte (dev);		/* 19: time base - always 0   */
-	send_0_byte (dev);		/* 20: spacing (0 = 25 kHz)   */
-	send_1_byte (dev);		/* 21: spacing (1 = 25 kHz)   */
-	send_0_byte (dev);		/* 22: spacing (0 = 25 kHz)   */
-	send_1_byte (dev);		/* 23: AM/FM (FM = 1, always) */
+	send_1_byte(az);		/* 18: band data 1 - unknown  */
+	send_0_byte(az);		/* 19: time base - always 0   */
+	send_0_byte(az);		/* 20: spacing (0 = 25 kHz)   */
+	send_1_byte(az);		/* 21: spacing (1 = 25 kHz)   */
+	send_0_byte(az);		/* 22: spacing (0 = 25 kHz)   */
+	send_1_byte(az);		/* 23: AM/FM (FM = 1, always) */
 
 	/* latch frequency */
 
-	udelay (radio_wait_time);
-	outb_p(128+64+volconvert(dev->curvol), io);
+	udelay(radio_wait_time);
+	outb_p(128 + 64 + volconvert(az->curvol), az->io);
 
-	mutex_unlock(&lock);
+	mutex_unlock(&az->lock);
 
 	return 0;
 }
 
-static int vidioc_querycap (struct file *file, void  *priv,
+static int vidioc_querycap(struct file *file, void  *priv,
 					struct v4l2_capability *v)
 {
-	strlcpy(v->driver, "radio-aztech", sizeof (v->driver));
-	strlcpy(v->card, "Aztech Radio", sizeof (v->card));
-	sprintf(v->bus_info,"ISA");
+	strlcpy(v->driver, "radio-aztech", sizeof(v->driver));
+	strlcpy(v->card, "Aztech Radio", sizeof(v->card));
+	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
 	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
-static int vidioc_g_tuner (struct file *file, void *priv,
+static int vidioc_g_tuner(struct file *file, void *priv,
 				struct v4l2_tuner *v)
 {
-	struct az_device *az = video_drvdata(file);
+	struct aztech *az = video_drvdata(file);
 
 	if (v->index > 0)
 		return -EINVAL;
 
-	strcpy(v->name, "FM");
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
 
-	v->rangelow=(87*16000);
-	v->rangehigh=(108*16000);
-	v->rxsubchans =V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
-	v->capability=V4L2_TUNER_CAP_LOW;
-	if(az_getstereo(az))
+	v->rangelow = 87 * 16000;
+	v->rangehigh = 108 * 16000;
+	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
+	v->capability = V4L2_TUNER_CAP_LOW;
+	if (az_getstereo(az))
 		v->audmode = V4L2_TUNER_MODE_STEREO;
 	else
 		v->audmode = V4L2_TUNER_MODE_MONO;
-	v->signal=0xFFFF*az_getsigstr(az);
+	v->signal = 0xFFFF * az_getsigstr(az);
 
 	return 0;
 }
 
-
-static int vidioc_s_tuner (struct file *file, void *priv,
+static int vidioc_s_tuner(struct file *file, void *priv,
 				struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
-
-	return 0;
-}
-
-static int vidioc_g_audio (struct file *file, void *priv,
-			   struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
+	return v->index ? -EINVAL : 0;
 }
 
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
@@ -247,113 +232,95 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
-	return 0;
+	return i ? -EINVAL : 0;
 }
 
-
-static int vidioc_s_audio (struct file *file, void *priv,
+static int vidioc_g_audio(struct file *file, void *priv,
 			   struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
-
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
-static int vidioc_s_frequency (struct file *file, void *priv,
+static int vidioc_s_audio(struct file *file, void *priv,
+			   struct v4l2_audio *a)
+{
+	return a->index ? -EINVAL : 0;
+}
+
+static int vidioc_s_frequency(struct file *file, void *priv,
 				struct v4l2_frequency *f)
 {
-	struct az_device *az = video_drvdata(file);
+	struct aztech *az = video_drvdata(file);
 
-	az->curfreq = f->frequency;
-	az_setfreq(az, az->curfreq);
+	az_setfreq(az, f->frequency);
 	return 0;
 }
 
-static int vidioc_g_frequency (struct file *file, void *priv,
+static int vidioc_g_frequency(struct file *file, void *priv,
 				struct v4l2_frequency *f)
 {
-	struct az_device *az = video_drvdata(file);
+	struct aztech *az = video_drvdata(file);
 
 	f->type = V4L2_TUNER_RADIO;
 	f->frequency = az->curfreq;
-
 	return 0;
 }
 
-static int vidioc_queryctrl (struct file *file, void *priv,
+static int vidioc_queryctrl(struct file *file, void *priv,
 			    struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]),
-						sizeof(*qc));
-			return (0);
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 0xff, 1, 0xff);
 	}
 	return -EINVAL;
 }
 
-static int vidioc_g_ctrl (struct file *file, void *priv,
+static int vidioc_g_ctrl(struct file *file, void *priv,
 			    struct v4l2_control *ctrl)
 {
-	struct az_device *az = video_drvdata(file);
+	struct aztech *az = video_drvdata(file);
 
 	switch (ctrl->id) {
-		case V4L2_CID_AUDIO_MUTE:
-			if (az->curvol==0)
-				ctrl->value=1;
-			else
-				ctrl->value=0;
-			return (0);
-		case V4L2_CID_AUDIO_VOLUME:
-			ctrl->value=az->curvol * 6554;
-			return (0);
+	case V4L2_CID_AUDIO_MUTE:
+		if (az->curvol == 0)
+			ctrl->value = 1;
+		else
+			ctrl->value = 0;
+		return 0;
+	case V4L2_CID_AUDIO_VOLUME:
+		ctrl->value = az->curvol * 6554;
+		return 0;
 	}
 	return -EINVAL;
 }
 
-static int vidioc_s_ctrl (struct file *file, void *priv,
+static int vidioc_s_ctrl(struct file *file, void *priv,
 			    struct v4l2_control *ctrl)
 {
-	struct az_device *az = video_drvdata(file);
+	struct aztech *az = video_drvdata(file);
 
 	switch (ctrl->id) {
-		case V4L2_CID_AUDIO_MUTE:
-			if (ctrl->value) {
-				az_setvol(az,0);
-			} else {
-				az_setvol(az,az->curvol);
-			}
-			return (0);
-		case V4L2_CID_AUDIO_VOLUME:
-			az_setvol(az,ctrl->value);
-			return (0);
+	case V4L2_CID_AUDIO_MUTE:
+		if (ctrl->value)
+			az_setvol(az, 0);
+		else
+			az_setvol(az, az->curvol);
+		return 0;
+	case V4L2_CID_AUDIO_VOLUME:
+		az_setvol(az, ctrl->value);
+		return 0;
 	}
 	return -EINVAL;
 }
 
-static struct az_device aztech_unit;
-
-static int aztech_exclusive_open(struct file *file)
-{
-	return test_and_set_bit(0, &aztech_unit.in_use) ? -EBUSY : 0;
-}
-
-static int aztech_exclusive_release(struct file *file)
-{
-	clear_bit(0, &aztech_unit.in_use);
-	return 0;
-}
-
 static const struct v4l2_file_operations aztech_fops = {
 	.owner		= THIS_MODULE,
-	.open           = aztech_exclusive_open,
-	.release        = aztech_exclusive_release,
 	.ioctl		= video_ioctl2,
 };
 
@@ -372,57 +339,60 @@ static const struct v4l2_ioctl_ops aztech_ioctl_ops = {
 	.vidioc_s_ctrl      = vidioc_s_ctrl,
 };
 
-static struct video_device aztech_radio = {
-	.name		= "Aztech radio",
-	.fops           = &aztech_fops,
-	.ioctl_ops 	= &aztech_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
-module_param_named(debug,aztech_radio.debug, int, 0644);
-MODULE_PARM_DESC(debug,"activates debug info");
-
 static int __init aztech_init(void)
 {
-	if(io==-1)
-	{
-		printk(KERN_ERR "You must set an I/O address with io=0x???\n");
+	struct aztech *az = &aztech_card;
+	struct v4l2_device *v4l2_dev = &az->v4l2_dev;
+	int res;
+
+	strlcpy(v4l2_dev->name, "aztech", sizeof(v4l2_dev->name));
+	az->io = io;
+
+	if (az->io == -1) {
+		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x350 or 0x358\n");
 		return -EINVAL;
 	}
 
-	if (!request_region(io, 2, "aztech"))
-	{
-		printk(KERN_ERR "aztech: port 0x%x already in use\n", io);
+	if (!request_region(az->io, 2, "aztech")) {
+		v4l2_err(v4l2_dev, "port 0x%x already in use\n", az->io);
 		return -EBUSY;
 	}
 
-	mutex_init(&lock);
-	video_set_drvdata(&aztech_radio, &aztech_unit);
+	res = v4l2_device_register(NULL, v4l2_dev);
+	if (res < 0) {
+		release_region(az->io, 2);
+		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		return res;
+	}
 
-	if (video_register_device(&aztech_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
-		release_region(io,2);
+	mutex_init(&az->lock);
+	strlcpy(az->vdev.name, v4l2_dev->name, sizeof(az->vdev.name));
+	az->vdev.v4l2_dev = v4l2_dev;
+	az->vdev.fops = &aztech_fops;
+	az->vdev.ioctl_ops = &aztech_ioctl_ops;
+	az->vdev.release = video_device_release_empty;
+	video_set_drvdata(&az->vdev, az);
+
+	if (video_register_device(&az->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(v4l2_dev);
+		release_region(az->io, 2);
 		return -EINVAL;
 	}
 
-	printk(KERN_INFO "Aztech radio card driver v1.00/19990224 rkroll@exploits.org\n");
+	v4l2_info(v4l2_dev, "Aztech radio card driver v1.00/19990224 rkroll@exploits.org\n");
 	/* mute card - prevents noisy bootups */
-	outb (0, io);
+	outb(0, az->io);
 	return 0;
 }
 
-MODULE_AUTHOR("Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
-MODULE_DESCRIPTION("A driver for the Aztech radio card.");
-MODULE_LICENSE("GPL");
-
-module_param(io, int, 0);
-module_param(radio_nr, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the Aztech card (0x350 or 0x358)");
-
-static void __exit aztech_cleanup(void)
+static void __exit aztech_exit(void)
 {
-	video_unregister_device(&aztech_radio);
-	release_region(io,2);
+	struct aztech *az = &aztech_card;
+
+	video_unregister_device(&az->vdev);
+	v4l2_device_unregister(&az->v4l2_dev);
+	release_region(az->io, 2);
 }
 
 module_init(aztech_init);
-module_exit(aztech_cleanup);
+module_exit(aztech_exit);
diff --git a/linux/drivers/media/radio/radio-cadet.c b/linux/drivers/media/radio/radio-cadet.c
index 7425aef88..99551d836 100644
--- a/linux/drivers/media/radio/radio-cadet.c
+++ b/linux/drivers/media/radio/radio-cadet.c
@@ -35,363 +35,345 @@
 #include <linux/init.h>		/* Initdata			*/
 #include <linux/ioport.h>	/* request_region		*/
 #include <linux/delay.h>	/* udelay			*/
-#include <asm/io.h>		/* outb, outb_p			*/
-#include <asm/uaccess.h>	/* copy to/from user		*/
-#include "compat.h"
 #include <linux/videodev2.h>	/* V4L2 API defs		*/
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
 #include <linux/param.h>
 #include <linux/pnp.h>
+#include <linux/io.h>		/* outb, outb_p			*/
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include "compat.h"
+
+MODULE_AUTHOR("Fred Gleason, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
+MODULE_DESCRIPTION("A driver for the ADS Cadet AM/FM/RDS radio card.");
+MODULE_LICENSE("GPL");
+
+static int io = -1;		/* default to isapnp activation */
+static int radio_nr = -1;
+
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, "I/O address of Cadet card (0x330,0x332,0x334,0x336,0x338,0x33a,0x33c,0x33e)");
+module_param(radio_nr, int, 0);
+
+#define CADET_VERSION KERNEL_VERSION(0, 3, 3)
 
 #define RDS_BUFFER 256
 #define RDS_RX_FLAG 1
 #define MBS_RX_FLAG 2
 
-#define CADET_VERSION KERNEL_VERSION(0,3,3)
-
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	},{
-		.id            = V4L2_CID_AUDIO_VOLUME,
-		.name          = "Volume",
-		.minimum       = 0,
-		.maximum       = 0xff,
-		.step          = 1,
-		.default_value = 0xff,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-	}
+struct cadet {
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	int io;
+	int users;
+	int curtuner;
+	int tunestat;
+	int sigstrength;
+	wait_queue_head_t read_queue;
+	struct timer_list readtimer;
+	__u8 rdsin, rdsout, rdsstat;
+	unsigned char rdsbuf[RDS_BUFFER];
+	struct mutex lock;
+	int reading;
 };
 
-static int io=-1;		/* default to isapnp activation */
-static int radio_nr = -1;
-static int users;
-static int curtuner;
-static int tunestat;
-static int sigstrength;
-static wait_queue_head_t read_queue;
-static struct timer_list readtimer;
-static __u8 rdsin, rdsout, rdsstat;
-static unsigned char rdsbuf[RDS_BUFFER];
-static spinlock_t cadet_io_lock;
-
-static int cadet_probe(void);
+static struct cadet cadet_card;
 
 /*
  * Signal Strength Threshold Values
  * The V4L API spec does not define any particular unit for the signal
  * strength value.  These values are in microvolts of RF at the tuner's input.
  */
-static __u16 sigtable[2][4]={{5,10,30,150},{28,40,63,1000}};
+static __u16 sigtable[2][4] = {
+	{  5, 10, 30,  150 },
+	{ 28, 40, 63, 1000 }
+};
 
 #if 0
 /*
 Note: cadet_getrds() is not used at the moment. It will be useful for future
 extensions, e.g. an ioctl to query RDS reception quality. - Hans J. Koch
 */
-static int
-cadet_getrds(void)
+static int cadet_getrds(struct cadet *dev)
 {
-	int rds_mbs_stat=0;
+	int rds_mbs_stat = 0;
 
-	spin_lock(&cadet_io_lock);
-	outb(3,io);                 /* Select Decoder Control/Status */
-	outb(inb(io+1)&0x7f,io+1);  /* Reset RDS detection */
-	spin_unlock(&cadet_io_lock);
+	mutex_lock(&dev->lock);
+	outb(3, dev->io);                 /* Select Decoder Control/Status */
+	outb(inb(dev->io + 1) & 0x7f, dev->io + 1);  /* Reset RDS detection */
+	mutex_unlock(&dev->lock);
 
 	msleep(100);
 
-	spin_lock(&cadet_io_lock);
-	outb(3,io);                 /* Select Decoder Control/Status */
-	if((inb(io+1)&0x80)!=0) {
+	mutex_lock(&dev->lock);
+	outb(3, dev->io);                 /* Select Decoder Control/Status */
+	if ((inb(dev->io + 1) & 0x80) != 0)
 		rds_mbs_stat |= RDS_RX_FLAG;
-	}
-	if((inb(io+1)&0x10)!=0) {
+	if ((inb(dev->io + 1) & 0x10) != 0)
 		rds_mbs_stat |= MBS_RX_FLAG;
-	}
-	spin_unlock(&cadet_io_lock);
+	mutex_unlock(&dev->lock);
 	return rds_mbs_stat;
 }
 #endif
 
-static int
-cadet_getstereo(void)
+static int cadet_getstereo(struct cadet *dev)
 {
 	int ret = V4L2_TUNER_SUB_MONO;
-	if(curtuner != 0)	/* Only FM has stereo capability! */
+
+	if (dev->curtuner != 0)	/* Only FM has stereo capability! */
 		return V4L2_TUNER_SUB_MONO;
 
-	spin_lock(&cadet_io_lock);
-	outb(7,io);          /* Select tuner control */
-	if( (inb(io+1) & 0x40) == 0)
+	mutex_lock(&dev->lock);
+	outb(7, dev->io);          /* Select tuner control */
+	if ((inb(dev->io + 1) & 0x40) == 0)
 		ret = V4L2_TUNER_SUB_STEREO;
-	spin_unlock(&cadet_io_lock);
+	mutex_unlock(&dev->lock);
 	return ret;
 }
 
-static unsigned
-cadet_gettune(void)
+static unsigned cadet_gettune(struct cadet *dev)
 {
-	int curvol,i;
-	unsigned fifo=0;
+	int curvol, i;
+	unsigned fifo = 0;
 
 	/*
 	 * Prepare for read
 	 */
 
-	spin_lock(&cadet_io_lock);
+	mutex_lock(&dev->lock);
 
-	outb(7,io);       /* Select tuner control */
-	curvol=inb(io+1); /* Save current volume/mute setting */
-	outb(0x00,io+1);  /* Ensure WRITE-ENABLE is LOW */
-	tunestat=0xffff;
+	outb(7, dev->io);       /* Select tuner control */
+	curvol = inb(dev->io + 1); /* Save current volume/mute setting */
+	outb(0x00, dev->io + 1);  /* Ensure WRITE-ENABLE is LOW */
+	dev->tunestat = 0xffff;
 
 	/*
 	 * Read the shift register
 	 */
-	for(i=0;i<25;i++) {
-		fifo=(fifo<<1)|((inb(io+1)>>7)&0x01);
-		if(i<24) {
-			outb(0x01,io+1);
-			tunestat&=inb(io+1);
-			outb(0x00,io+1);
+	for (i = 0; i < 25; i++) {
+		fifo = (fifo << 1) | ((inb(dev->io + 1) >> 7) & 0x01);
+		if (i < 24) {
+			outb(0x01, dev->io + 1);
+			dev->tunestat &= inb(dev->io + 1);
+			outb(0x00, dev->io + 1);
 		}
 	}
 
 	/*
 	 * Restore volume/mute setting
 	 */
-	outb(curvol,io+1);
-	spin_unlock(&cadet_io_lock);
+	outb(curvol, dev->io + 1);
+	mutex_unlock(&dev->lock);
 
 	return fifo;
 }
 
-static unsigned
-cadet_getfreq(void)
+static unsigned cadet_getfreq(struct cadet *dev)
 {
 	int i;
-	unsigned freq=0,test,fifo=0;
+	unsigned freq = 0, test, fifo = 0;
 
 	/*
 	 * Read current tuning
 	 */
-	fifo=cadet_gettune();
+	fifo = cadet_gettune(dev);
 
 	/*
 	 * Convert to actual frequency
 	 */
-	if(curtuner==0) {    /* FM */
-		test=12500;
-		for(i=0;i<14;i++) {
-			if((fifo&0x01)!=0) {
-				freq+=test;
-			}
-			test=test<<1;
-			fifo=fifo>>1;
+	if (dev->curtuner == 0) {    /* FM */
+		test = 12500;
+		for (i = 0; i < 14; i++) {
+			if ((fifo & 0x01) != 0)
+				freq += test;
+			test = test << 1;
+			fifo = fifo >> 1;
 		}
-		freq-=10700000;           /* IF frequency is 10.7 MHz */
-		freq=(freq*16)/1000000;   /* Make it 1/16 MHz */
-	}
-	if(curtuner==1) {    /* AM */
-		freq=((fifo&0x7fff)-2010)*16;
+		freq -= 10700000;           /* IF frequency is 10.7 MHz */
+		freq = (freq * 16) / 1000000;   /* Make it 1/16 MHz */
 	}
+	if (dev->curtuner == 1)    /* AM */
+		freq = ((fifo & 0x7fff) - 2010) * 16;
 
 	return freq;
 }
 
-static void
-cadet_settune(unsigned fifo)
+static void cadet_settune(struct cadet *dev, unsigned fifo)
 {
 	int i;
 	unsigned test;
 
-	spin_lock(&cadet_io_lock);
+	mutex_lock(&dev->lock);
 
-	outb(7,io);                /* Select tuner control */
+	outb(7, dev->io);                /* Select tuner control */
 	/*
 	 * Write the shift register
 	 */
-	test=0;
-	test=(fifo>>23)&0x02;      /* Align data for SDO */
-	test|=0x1c;                /* SDM=1, SWE=1, SEN=1, SCK=0 */
-	outb(7,io);                /* Select tuner control */
-	outb(test,io+1);           /* Initialize for write */
-	for(i=0;i<25;i++) {
-		test|=0x01;              /* Toggle SCK High */
-		outb(test,io+1);
-		test&=0xfe;              /* Toggle SCK Low */
-		outb(test,io+1);
-		fifo=fifo<<1;            /* Prepare the next bit */
-		test=0x1c|((fifo>>23)&0x02);
-		outb(test,io+1);
+	test = 0;
+	test = (fifo >> 23) & 0x02;      /* Align data for SDO */
+	test |= 0x1c;                /* SDM=1, SWE=1, SEN=1, SCK=0 */
+	outb(7, dev->io);                /* Select tuner control */
+	outb(test, dev->io + 1);           /* Initialize for write */
+	for (i = 0; i < 25; i++) {
+		test |= 0x01;              /* Toggle SCK High */
+		outb(test, dev->io + 1);
+		test &= 0xfe;              /* Toggle SCK Low */
+		outb(test, dev->io + 1);
+		fifo = fifo << 1;            /* Prepare the next bit */
+		test = 0x1c | ((fifo >> 23) & 0x02);
+		outb(test, dev->io + 1);
 	}
-	spin_unlock(&cadet_io_lock);
+	mutex_unlock(&dev->lock);
 }
 
-static void
-cadet_setfreq(unsigned freq)
+static void cadet_setfreq(struct cadet *dev, unsigned freq)
 {
 	unsigned fifo;
-	int i,j,test;
+	int i, j, test;
 	int curvol;
 
 	/*
 	 * Formulate a fifo command
 	 */
-	fifo=0;
-	if(curtuner==0) {    /* FM */
-		test=102400;
-		freq=(freq*1000)/16;       /* Make it kHz */
-		freq+=10700;               /* IF is 10700 kHz */
-		for(i=0;i<14;i++) {
-			fifo=fifo<<1;
-			if(freq>=test) {
-				fifo|=0x01;
-				freq-=test;
+	fifo = 0;
+	if (dev->curtuner == 0) {    /* FM */
+		test = 102400;
+		freq = (freq * 1000) / 16;       /* Make it kHz */
+		freq += 10700;               /* IF is 10700 kHz */
+		for (i = 0; i < 14; i++) {
+			fifo = fifo << 1;
+			if (freq >= test) {
+				fifo |= 0x01;
+				freq -= test;
 			}
-			test=test>>1;
+			test = test >> 1;
 		}
 	}
-	if(curtuner==1) {    /* AM */
-		fifo=(freq/16)+2010;            /* Make it kHz */
-		fifo|=0x100000;            /* Select AM Band */
+	if (dev->curtuner == 1) {    /* AM */
+		fifo = (freq / 16) + 2010;            /* Make it kHz */
+		fifo |= 0x100000;            /* Select AM Band */
 	}
 
 	/*
 	 * Save current volume/mute setting
 	 */
 
-	spin_lock(&cadet_io_lock);
-	outb(7,io);                /* Select tuner control */
-	curvol=inb(io+1);
-	spin_unlock(&cadet_io_lock);
+	mutex_lock(&dev->lock);
+	outb(7, dev->io);                /* Select tuner control */
+	curvol = inb(dev->io + 1);
+	mutex_unlock(&dev->lock);
 
 	/*
 	 * Tune the card
 	 */
-	for(j=3;j>-1;j--) {
-		cadet_settune(fifo|(j<<16));
+	for (j = 3; j > -1; j--) {
+		cadet_settune(dev, fifo | (j << 16));
 
-		spin_lock(&cadet_io_lock);
-		outb(7,io);         /* Select tuner control */
-		outb(curvol,io+1);
-		spin_unlock(&cadet_io_lock);
+		mutex_lock(&dev->lock);
+		outb(7, dev->io);         /* Select tuner control */
+		outb(curvol, dev->io + 1);
+		mutex_unlock(&dev->lock);
 
 		msleep(100);
 
-		cadet_gettune();
-		if((tunestat & 0x40) == 0) {   /* Tuned */
-			sigstrength=sigtable[curtuner][j];
+		cadet_gettune(dev);
+		if ((dev->tunestat & 0x40) == 0) {   /* Tuned */
+			dev->sigstrength = sigtable[dev->curtuner][j];
 			return;
 		}
 	}
-	sigstrength=0;
+	dev->sigstrength = 0;
 }
 
 
-static int
-cadet_getvol(void)
+static int cadet_getvol(struct cadet *dev)
 {
 	int ret = 0;
 
-	spin_lock(&cadet_io_lock);
+	mutex_lock(&dev->lock);
 
-	outb(7,io);                /* Select tuner control */
-	if((inb(io + 1) & 0x20) != 0)
+	outb(7, dev->io);                /* Select tuner control */
+	if ((inb(dev->io + 1) & 0x20) != 0)
 		ret = 0xffff;
 
-	spin_unlock(&cadet_io_lock);
+	mutex_unlock(&dev->lock);
 	return ret;
 }
 
 
-static void
-cadet_setvol(int vol)
+static void cadet_setvol(struct cadet *dev, int vol)
 {
-	spin_lock(&cadet_io_lock);
-	outb(7,io);                /* Select tuner control */
-	if(vol>0)
-		outb(0x20,io+1);
+	mutex_lock(&dev->lock);
+	outb(7, dev->io);                /* Select tuner control */
+	if (vol > 0)
+		outb(0x20, dev->io + 1);
 	else
-		outb(0x00,io+1);
-	spin_unlock(&cadet_io_lock);
+		outb(0x00, dev->io + 1);
+	mutex_unlock(&dev->lock);
 }
 
-static void
-cadet_handler(unsigned long data)
+static void cadet_handler(unsigned long data)
 {
-	/*
-	 * Service the RDS fifo
-	 */
+	struct cadet *dev = (void *)data;
 
-	if(spin_trylock(&cadet_io_lock))
-	{
-		outb(0x3,io);       /* Select RDS Decoder Control */
-		if((inb(io+1)&0x20)!=0) {
+	/* Service the RDS fifo */
+	if (mutex_trylock(&dev->lock)) {
+		outb(0x3, dev->io);       /* Select RDS Decoder Control */
+		if ((inb(dev->io + 1) & 0x20) != 0)
 			printk(KERN_CRIT "cadet: RDS fifo overflow\n");
-		}
-		outb(0x80,io);      /* Select RDS fifo */
-		while((inb(io)&0x80)!=0) {
-			rdsbuf[rdsin]=inb(io+1);
-			if(rdsin==rdsout)
+		outb(0x80, dev->io);      /* Select RDS fifo */
+		while ((inb(dev->io) & 0x80) != 0) {
+			dev->rdsbuf[dev->rdsin] = inb(dev->io + 1);
+			if (dev->rdsin == dev->rdsout)
 				printk(KERN_WARNING "cadet: RDS buffer overflow\n");
 			else
-				rdsin++;
+				dev->rdsin++;
 		}
-		spin_unlock(&cadet_io_lock);
+		mutex_unlock(&dev->lock);
 	}
 
 	/*
 	 * Service pending read
 	 */
-	if( rdsin!=rdsout)
-		wake_up_interruptible(&read_queue);
+	if (dev->rdsin != dev->rdsout)
+		wake_up_interruptible(&dev->read_queue);
 
 	/*
 	 * Clean up and exit
 	 */
-	init_timer(&readtimer);
-	readtimer.function=cadet_handler;
-	readtimer.data=(unsigned long)0;
-	readtimer.expires=jiffies+msecs_to_jiffies(50);
-	add_timer(&readtimer);
+	init_timer(&dev->readtimer);
+	dev->readtimer.function = cadet_handler;
+	dev->readtimer.data = (unsigned long)0;
+	dev->readtimer.expires = jiffies + msecs_to_jiffies(50);
+	add_timer(&dev->readtimer);
 }
 
 
-
-static ssize_t
-cadet_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
+static ssize_t cadet_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
 {
-	int i=0;
+	struct cadet *dev = video_drvdata(file);
 	unsigned char readbuf[RDS_BUFFER];
-
-	if(rdsstat==0) {
-		spin_lock(&cadet_io_lock);
-		rdsstat=1;
-		outb(0x80,io);        /* Select RDS fifo */
-		spin_unlock(&cadet_io_lock);
-		init_timer(&readtimer);
-		readtimer.function=cadet_handler;
-		readtimer.data=(unsigned long)0;
-		readtimer.expires=jiffies+msecs_to_jiffies(50);
-		add_timer(&readtimer);
+	int i = 0;
+
+	if (dev->rdsstat == 0) {
+		mutex_lock(&dev->lock);
+		dev->rdsstat = 1;
+		outb(0x80, dev->io);        /* Select RDS fifo */
+		mutex_unlock(&dev->lock);
+		init_timer(&dev->readtimer);
+		dev->readtimer.function = cadet_handler;
+		dev->readtimer.data = (unsigned long)dev;
+		dev->readtimer.expires = jiffies + msecs_to_jiffies(50);
+		add_timer(&dev->readtimer);
 	}
-	if(rdsin==rdsout) {
+	if (dev->rdsin == dev->rdsout) {
 		if (file->f_flags & O_NONBLOCK)
 			return -EWOULDBLOCK;
-		interruptible_sleep_on(&read_queue);
+		interruptible_sleep_on(&dev->read_queue);
 	}
-	while( i<count && rdsin!=rdsout)
-		readbuf[i++]=rdsbuf[rdsout++];
+	while (i < count && dev->rdsin != dev->rdsout)
+		readbuf[i++] = dev->rdsbuf[dev->rdsout++];
 
-	if (copy_to_user(data,readbuf,i))
+	if (copy_to_user(data, readbuf, i))
 		return -EFAULT;
 	return i;
 }
@@ -400,38 +382,42 @@ cadet_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
 static int vidioc_querycap(struct file *file, void *priv,
 				struct v4l2_capability *v)
 {
-	v->capabilities =
-		V4L2_CAP_TUNER |
-		V4L2_CAP_READWRITE;
+	strlcpy(v->driver, "ADS Cadet", sizeof(v->driver));
+	strlcpy(v->card, "ADS Cadet", sizeof(v->card));
+	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
 	v->version = CADET_VERSION;
-	strcpy(v->driver, "ADS Cadet");
-	strcpy(v->card, "ADS Cadet");
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO |
+			  V4L2_CAP_READWRITE | V4L2_CAP_RDS_CAPTURE;
 	return 0;
 }
 
 static int vidioc_g_tuner(struct file *file, void *priv,
 				struct v4l2_tuner *v)
 {
+	struct cadet *dev = video_drvdata(file);
+
 	v->type = V4L2_TUNER_RADIO;
 	switch (v->index) {
 	case 0:
-		strcpy(v->name, "FM");
-		v->capability = V4L2_TUNER_CAP_STEREO;
+		strlcpy(v->name, "FM", sizeof(v->name));
+		v->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_RDS;
 		v->rangelow = 1400;     /* 87.5 MHz */
 		v->rangehigh = 1728;    /* 108.0 MHz */
-		v->rxsubchans=cadet_getstereo();
-		switch (v->rxsubchans){
+		v->rxsubchans = cadet_getstereo(dev);
+		switch (v->rxsubchans) {
 		case V4L2_TUNER_SUB_MONO:
 			v->audmode = V4L2_TUNER_MODE_MONO;
 			break;
 		case V4L2_TUNER_SUB_STEREO:
 			v->audmode = V4L2_TUNER_MODE_STEREO;
 			break;
-		default: ;
+		default:
+			break;
 		}
+		v->rxsubchans |= V4L2_TUNER_SUB_RDS;
 		break;
 	case 1:
-		strcpy(v->name, "AM");
+		strlcpy(v->name, "AM", sizeof(v->name));
 		v->capability = V4L2_TUNER_CAP_LOW;
 		v->rangelow = 8320;      /* 520 kHz */
 		v->rangehigh = 26400;    /* 1650 kHz */
@@ -441,25 +427,29 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 	default:
 		return -EINVAL;
 	}
-	v->signal = sigstrength; /* We might need to modify scaling of this */
+	v->signal = dev->sigstrength; /* We might need to modify scaling of this */
 	return 0;
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv,
 				struct v4l2_tuner *v)
 {
-	if((v->index != 0)&&(v->index != 1))
+	struct cadet *dev = video_drvdata(file);
+
+	if (v->index != 0 && v->index != 1)
 		return -EINVAL;
-	curtuner = v->index;
+	dev->curtuner = v->index;
 	return 0;
 }
 
 static int vidioc_g_frequency(struct file *file, void *priv,
 				struct v4l2_frequency *f)
 {
-	f->tuner = curtuner;
+	struct cadet *dev = video_drvdata(file);
+
+	f->tuner = dev->curtuner;
 	f->type = V4L2_TUNER_RADIO;
-	f->frequency = cadet_getfreq();
+	f->frequency = cadet_getfreq(dev);
 	return 0;
 }
 
@@ -467,27 +457,26 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 static int vidioc_s_frequency(struct file *file, void *priv,
 				struct v4l2_frequency *f)
 {
+	struct cadet *dev = video_drvdata(file);
+
 	if (f->type != V4L2_TUNER_RADIO)
 		return -EINVAL;
-	if((curtuner==0)&&((f->frequency<1400)||(f->frequency>1728)))
+	if (dev->curtuner == 0 && (f->frequency < 1400 || f->frequency > 1728))
 		return -EINVAL;
-	if((curtuner==1)&&((f->frequency<8320)||(f->frequency>26400)))
+	if (dev->curtuner == 1 && (f->frequency < 8320 || f->frequency > 26400))
 		return -EINVAL;
-	cadet_setfreq(f->frequency);
+	cadet_setfreq(dev, f->frequency);
 	return 0;
 }
 
 static int vidioc_queryctrl(struct file *file, void *priv,
 				struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]),
-						sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 0xff, 1, 0xff);
 	}
 	return -EINVAL;
 }
@@ -495,12 +484,14 @@ static int vidioc_queryctrl(struct file *file, void *priv,
 static int vidioc_g_ctrl(struct file *file, void *priv,
 				struct v4l2_control *ctrl)
 {
-	switch (ctrl->id){
+	struct cadet *dev = video_drvdata(file);
+
+	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE: /* TODO: Handle this correctly */
-		ctrl->value = (cadet_getvol() == 0);
+		ctrl->value = (cadet_getvol(dev) == 0);
 		break;
 	case V4L2_CID_AUDIO_VOLUME:
-		ctrl->value = cadet_getvol();
+		ctrl->value = cadet_getvol(dev);
 		break;
 	default:
 		return -EINVAL;
@@ -511,15 +502,17 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 static int vidioc_s_ctrl(struct file *file, void *priv,
 				struct v4l2_control *ctrl)
 {
+	struct cadet *dev = video_drvdata(file);
+
 	switch (ctrl->id){
 	case V4L2_CID_AUDIO_MUTE: /* TODO: Handle this correctly */
 		if (ctrl->value)
-			cadet_setvol(0);
+			cadet_setvol(dev, 0);
 		else
-			cadet_setvol(0xffff);
+			cadet_setvol(dev, 0xffff);
 		break;
 	case V4L2_CID_AUDIO_VOLUME:
-		cadet_setvol(ctrl->value);
+		cadet_setvol(dev, ctrl->value);
 		break;
 	default:
 		return -EINVAL;
@@ -527,16 +520,6 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
 	return 0;
 }
 
-static int vidioc_g_audio(struct file *file, void *priv,
-				struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
-}
-
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 {
 	*i = 0;
@@ -545,43 +528,52 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
+	return i ? -EINVAL : 0;
+}
+
+static int vidioc_g_audio(struct file *file, void *priv,
+				struct v4l2_audio *a)
+{
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
 static int vidioc_s_audio(struct file *file, void *priv,
 				struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
-	return 0;
+	return a->index ? -EINVAL : 0;
 }
 
-static int
-cadet_open(struct file *file)
+static int cadet_open(struct file *file)
 {
-	users++;
-	if (1 == users) init_waitqueue_head(&read_queue);
+	struct cadet *dev = video_drvdata(file);
+
+	dev->users++;
+	if (1 == dev->users)
+		init_waitqueue_head(&dev->read_queue);
 	return 0;
 }
 
-static int
-cadet_release(struct file *file)
+static int cadet_release(struct file *file)
 {
-	users--;
-	if (0 == users){
-		del_timer_sync(&readtimer);
-		rdsstat=0;
+	struct cadet *dev = video_drvdata(file);
+
+	dev->users--;
+	if (0 == dev->users) {
+		del_timer_sync(&dev->readtimer);
+		dev->rdsstat = 0;
 	}
 	return 0;
 }
 
-static unsigned int
-cadet_poll(struct file *file, struct poll_table_struct *wait)
+static unsigned int cadet_poll(struct file *file, struct poll_table_struct *wait)
 {
-	poll_wait(file,&read_queue,wait);
-	if(rdsin != rdsout)
+	struct cadet *dev = video_drvdata(file);
+
+	poll_wait(file, &dev->read_queue, wait);
+	if (dev->rdsin != dev->rdsout)
 		return POLLIN | POLLRDNORM;
 	return 0;
 }
@@ -611,13 +603,6 @@ static const struct v4l2_ioctl_ops cadet_ioctl_ops = {
 	.vidioc_s_input     = vidioc_s_input,
 };
 
-static struct video_device cadet_radio = {
-	.name		= "Cadet radio",
-	.fops           = &cadet_fops,
-	.ioctl_ops 	= &cadet_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
 #ifdef CONFIG_PNP
 
 static struct pnp_device_id cadet_pnp_devices[] = {
@@ -628,7 +613,7 @@ static struct pnp_device_id cadet_pnp_devices[] = {
 
 MODULE_DEVICE_TABLE(pnp, cadet_pnp_devices);
 
-static int cadet_pnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev_id)
+static int cadet_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
 {
 	if (!dev)
 		return -ENODEV;
@@ -636,13 +621,12 @@ static int cadet_pnp_probe(struct pnp_dev * dev, const struct pnp_device_id *dev
 	if (io > 0)
 		return -EBUSY;
 
-	if (!pnp_port_valid(dev, 0)) {
+	if (!pnp_port_valid(dev, 0))
 		return -ENODEV;
-	}
 
 	io = pnp_port_start(dev, 0);
 
-	printk ("radio-cadet: PnP reports device at %#x\n", io);
+	printk(KERN_INFO "radio-cadet: PnP reports device at %#x\n", io);
 
 	return io;
 }
@@ -658,23 +642,23 @@ static struct pnp_driver cadet_pnp_driver = {
 static struct pnp_driver cadet_pnp_driver;
 #endif
 
-static int cadet_probe(void)
+static void cadet_probe(struct cadet *dev)
 {
-	static int iovals[8]={0x330,0x332,0x334,0x336,0x338,0x33a,0x33c,0x33e};
+	static int iovals[8] = { 0x330, 0x332, 0x334, 0x336, 0x338, 0x33a, 0x33c, 0x33e };
 	int i;
 
-	for(i=0;i<8;i++) {
-		io=iovals[i];
-		if (request_region(io, 2, "cadet-probe")) {
-			cadet_setfreq(1410);
-			if(cadet_getfreq()==1410) {
-				release_region(io, 2);
-				return io;
+	for (i = 0; i < 8; i++) {
+		dev->io = iovals[i];
+		if (request_region(dev->io, 2, "cadet-probe")) {
+			cadet_setfreq(dev, 1410);
+			if (cadet_getfreq(dev) == 1410) {
+				release_region(dev->io, 2);
+				return;
 			}
-			release_region(io, 2);
+			release_region(dev->io, 2);
 		}
 	}
-	return -1;
+	dev->io = -1;
 }
 
 /*
@@ -684,59 +668,69 @@ static int cadet_probe(void)
 
 static int __init cadet_init(void)
 {
-	spin_lock_init(&cadet_io_lock);
+	struct cadet *dev = &cadet_card;
+	struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
+	int res;
 
-	/*
-	 *	If a probe was requested then probe ISAPnP first (safest)
-	 */
+	strlcpy(v4l2_dev->name, "cadet", sizeof(v4l2_dev->name));
+	mutex_init(&dev->lock);
+
+	/* If a probe was requested then probe ISAPnP first (safest) */
 	if (io < 0)
 		pnp_register_driver(&cadet_pnp_driver);
-	/*
-	 *	If that fails then probe unsafely if probe is requested
-	 */
-	if(io < 0)
-		io = cadet_probe ();
+	dev->io = io;
 
-	/*
-	 *	Else we bail out
-	 */
+	/* If that fails then probe unsafely if probe is requested */
+	if (dev->io < 0)
+		cadet_probe(dev);
 
-	if(io < 0) {
+	/* Else we bail out */
+	if (dev->io < 0) {
 #ifdef MODULE
-		printk(KERN_ERR "You must set an I/O address with io=0x???\n");
+		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x330, 0x332, 0x334,\n");
+		v4l2_err(v4l2_dev, "0x336, 0x338, 0x33a, 0x33c or 0x33e\n");
 #endif
 		goto fail;
 	}
-	if (!request_region(io,2,"cadet"))
+	if (!request_region(dev->io, 2, "cadet"))
 		goto fail;
-	if (video_register_device(&cadet_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
-		release_region(io,2);
+
+	res = v4l2_device_register(NULL, v4l2_dev);
+	if (res < 0) {
+		release_region(dev->io, 2);
+		v4l2_err(v4l2_dev, "could not register v4l2_device\n");
 		goto fail;
 	}
-	printk(KERN_INFO "ADS Cadet Radio Card at 0x%x\n",io);
+
+	strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
+	dev->vdev.v4l2_dev = v4l2_dev;
+	dev->vdev.fops = &cadet_fops;
+	dev->vdev.ioctl_ops = &cadet_ioctl_ops;
+	dev->vdev.release = video_device_release_empty;
+	video_set_drvdata(&dev->vdev, dev);
+
+	if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(v4l2_dev);
+		release_region(dev->io, 2);
+		goto fail;
+	}
+	v4l2_info(v4l2_dev, "ADS Cadet Radio Card at 0x%x\n", dev->io);
 	return 0;
 fail:
 	pnp_unregister_driver(&cadet_pnp_driver);
-	return -1;
+	return -ENODEV;
 }
 
-
-
-MODULE_AUTHOR("Fred Gleason, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
-MODULE_DESCRIPTION("A driver for the ADS Cadet AM/FM/RDS radio card.");
-MODULE_LICENSE("GPL");
-
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of Cadet card (0x330,0x332,0x334,0x336,0x338,0x33a,0x33c,0x33e)");
-module_param(radio_nr, int, 0);
-
-static void __exit cadet_cleanup_module(void)
+static void __exit cadet_exit(void)
 {
-	video_unregister_device(&cadet_radio);
-	release_region(io,2);
+	struct cadet *dev = &cadet_card;
+
+	video_unregister_device(&dev->vdev);
+	v4l2_device_unregister(&dev->v4l2_dev);
+	release_region(dev->io, 2);
 	pnp_unregister_driver(&cadet_pnp_driver);
 }
 
 module_init(cadet_init);
-module_exit(cadet_cleanup_module);
+module_exit(cadet_exit);
 
diff --git a/linux/drivers/media/radio/radio-gemtek-pci.c b/linux/drivers/media/radio/radio-gemtek-pci.c
index 7edd3e594..64859e9b2 100644
--- a/linux/drivers/media/radio/radio-gemtek-pci.c
+++ b/linux/drivers/media/radio/radio-gemtek-pci.c
@@ -44,36 +44,27 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/pci.h>
-#include "compat.h"
 #include <linux/videodev2.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
 #include <linux/errno.h>
-
 #include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
-#define RADIO_VERSION KERNEL_VERSION(0,0,2)
-
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	},{
-		.id            = V4L2_CID_AUDIO_VOLUME,
-		.name          = "Volume",
-		.minimum       = 0,
-		.maximum       = 65535,
-		.step          = 65535,
-		.default_value = 0xff,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-	}
-};
+#include <linux/io.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include "compat.h"
 
-#include <asm/io.h>
-#include <asm/uaccess.h>
+MODULE_AUTHOR("Vladimir Shebordaev <vshebordaev@mail.ru>");
+MODULE_DESCRIPTION("The video4linux driver for the Gemtek PCI Radio Card");
+MODULE_LICENSE("GPL");
+
+static int nr_radio = -1;
+static int mx = 1;
+
+module_param(mx, bool, 0);
+MODULE_PARM_DESC(mx, "single digit: 1 - turn off the turner upon module exit (default), 0 - do not");
+module_param(nr_radio, int, 0);
+MODULE_PARM_DESC(nr_radio, "video4linux device number to use");
+
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
 
 #ifndef PCI_VENDOR_ID_GEMTEK
 #define PCI_VENDOR_ID_GEMTEK 0x5046
@@ -91,8 +82,11 @@ static struct v4l2_queryctrl radio_qctrl[] = {
 #define GEMTEK_PCI_RANGE_HIGH (108*16000)
 #endif
 
-struct gemtek_pci_card {
-	struct video_device *videodev;
+struct gemtek_pci {
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	struct mutex lock;
+	struct pci_dev *pdev;
 
 	u32 iobase;
 	u32 length;
@@ -101,116 +95,133 @@ struct gemtek_pci_card {
 	u8  mute;
 };
 
-static int nr_radio = -1;
-static unsigned long in_use;
+static inline struct gemtek_pci *to_gemtek_pci(struct v4l2_device *v4l2_dev)
+{
+	return container_of(v4l2_dev, struct gemtek_pci, v4l2_dev);
+}
 
-static inline u8 gemtek_pci_out( u16 value, u32 port )
+static inline u8 gemtek_pci_out(u16 value, u32 port)
 {
-	outw( value, port );
+	outw(value, port);
 
 	return (u8)value;
 }
 
-#define _b0( v ) *((u8 *)&v)
-static void __gemtek_pci_cmd( u16 value, u32 port, u8 *last_byte, int keep )
+#define _b0(v) (*((u8 *)&v))
+
+static void __gemtek_pci_cmd(u16 value, u32 port, u8 *last_byte, int keep)
 {
-	register u8 byte = *last_byte;
+	u8 byte = *last_byte;
 
-	if ( !value ) {
-		if ( !keep )
+	if (!value) {
+		if (!keep)
 			value = (u16)port;
 		byte &= 0xfd;
 	} else
 		byte |= 2;
 
-	_b0( value ) = byte;
-	outw( value, port );
+	_b0(value) = byte;
+	outw(value, port);
 	byte |= 1;
-	_b0( value ) = byte;
-	outw( value, port );
+	_b0(value) = byte;
+	outw(value, port);
 	byte &= 0xfe;
-	_b0( value ) = byte;
-	outw( value, port );
+	_b0(value) = byte;
+	outw(value, port);
 
 	*last_byte = byte;
 }
 
-static inline void gemtek_pci_nil( u32 port, u8 *last_byte )
+static inline void gemtek_pci_nil(u32 port, u8 *last_byte)
 {
-	__gemtek_pci_cmd( 0x00, port, last_byte, false );
+	__gemtek_pci_cmd(0x00, port, last_byte, false);
 }
 
-static inline void gemtek_pci_cmd( u16 cmd, u32 port, u8 *last_byte )
+static inline void gemtek_pci_cmd(u16 cmd, u32 port, u8 *last_byte)
 {
-	__gemtek_pci_cmd( cmd, port, last_byte, true );
+	__gemtek_pci_cmd(cmd, port, last_byte, true);
 }
 
-static void gemtek_pci_setfrequency( struct gemtek_pci_card *card, unsigned long frequency )
+static void gemtek_pci_setfrequency(struct gemtek_pci *card, unsigned long frequency)
 {
-	register int i;
-	register u32 value = frequency / 200 + 856;
-	register u16 mask = 0x8000;
+	int i;
+	u32 value = frequency / 200 + 856;
+	u16 mask = 0x8000;
 	u8 last_byte;
 	u32 port = card->iobase;
 
-	last_byte = gemtek_pci_out( 0x06, port );
+	mutex_lock(&card->lock);
+	card->current_frequency = frequency;
+	last_byte = gemtek_pci_out(0x06, port);
 
 	i = 0;
 	do {
-		gemtek_pci_nil( port, &last_byte );
+		gemtek_pci_nil(port, &last_byte);
 		i++;
-	} while ( i < 9 );
+	} while (i < 9);
 
 	i = 0;
 	do {
-		gemtek_pci_cmd( value & mask, port, &last_byte );
+		gemtek_pci_cmd(value & mask, port, &last_byte);
 		mask >>= 1;
 		i++;
-	} while ( i < 16 );
+	} while (i < 16);
 
-	outw( 0x10, port );
+	outw(0x10, port);
+	mutex_unlock(&card->lock);
 }
 
 
-static inline void gemtek_pci_mute( struct gemtek_pci_card *card )
+static void gemtek_pci_mute(struct gemtek_pci *card)
 {
-	outb( 0x1f, card->iobase );
+	mutex_lock(&card->lock);
+	outb(0x1f, card->iobase);
 	card->mute = true;
+	mutex_unlock(&card->lock);
 }
 
-static inline void gemtek_pci_unmute( struct gemtek_pci_card *card )
+static void gemtek_pci_unmute(struct gemtek_pci *card)
 {
-	if ( card->mute ) {
-		gemtek_pci_setfrequency( card, card->current_frequency );
+	mutex_lock(&card->lock);
+	if (card->mute) {
+		gemtek_pci_setfrequency(card, card->current_frequency);
 		card->mute = false;
 	}
+	mutex_unlock(&card->lock);
 }
 
-static inline unsigned int gemtek_pci_getsignal( struct gemtek_pci_card *card )
+static int gemtek_pci_getsignal(struct gemtek_pci *card)
 {
-	return ( inb( card->iobase ) & 0x08 ) ? 0 : 1;
+	int sig;
+
+	mutex_lock(&card->lock);
+	sig = (inb(card->iobase) & 0x08) ? 0 : 1;
+	mutex_unlock(&card->lock);
+	return sig;
 }
 
 static int vidioc_querycap(struct file *file, void *priv,
 					struct v4l2_capability *v)
 {
+	struct gemtek_pci *card = video_drvdata(file);
+
 	strlcpy(v->driver, "radio-gemtek-pci", sizeof(v->driver));
 	strlcpy(v->card, "GemTek PCI Radio", sizeof(v->card));
-	sprintf(v->bus_info, "ISA");
+	snprintf(v->bus_info, sizeof(v->bus_info), "PCI:%s", pci_name(card->pdev));
 	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
 static int vidioc_g_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	struct gemtek_pci_card *card = video_drvdata(file);
+	struct gemtek_pci *card = video_drvdata(file);
 
 	if (v->index > 0)
 		return -EINVAL;
 
-	strcpy(v->name, "FM");
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
 	v->rangelow = GEMTEK_PCI_RANGE_LOW;
 	v->rangehigh = GEMTEK_PCI_RANGE_HIGH;
@@ -224,21 +235,18 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 static int vidioc_s_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
-	return 0;
+	return v->index ? -EINVAL : 0;
 }
 
 static int vidioc_s_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct gemtek_pci_card *card = video_drvdata(file);
+	struct gemtek_pci *card = video_drvdata(file);
 
-	if ( (f->frequency < GEMTEK_PCI_RANGE_LOW) ||
-			(f->frequency > GEMTEK_PCI_RANGE_HIGH) )
+	if (f->frequency < GEMTEK_PCI_RANGE_LOW ||
+	    f->frequency > GEMTEK_PCI_RANGE_HIGH)
 		return -EINVAL;
 	gemtek_pci_setfrequency(card, f->frequency);
-	card->current_frequency = f->frequency;
 	card->mute = false;
 	return 0;
 }
@@ -246,7 +254,7 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 static int vidioc_g_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct gemtek_pci_card *card = video_drvdata(file);
+	struct gemtek_pci *card = video_drvdata(file);
 
 	f->type = V4L2_TUNER_RADIO;
 	f->frequency = card->current_frequency;
@@ -256,13 +264,11 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 static int vidioc_queryctrl(struct file *file, void *priv,
 					struct v4l2_queryctrl *qc)
 {
-	int i;
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]),
-						sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535, 65535);
 	}
 	return -EINVAL;
 }
@@ -270,7 +276,7 @@ static int vidioc_queryctrl(struct file *file, void *priv,
 static int vidioc_g_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct gemtek_pci_card *card = video_drvdata(file);
+	struct gemtek_pci *card = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
@@ -289,7 +295,7 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 static int vidioc_s_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct gemtek_pci_card *card = video_drvdata(file);
+	struct gemtek_pci *card = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
@@ -308,17 +314,6 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
 	return -EINVAL;
 }
 
-static int vidioc_g_audio(struct file *file, void *priv,
-					struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
-}
-
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 {
 	*i = 0;
@@ -327,17 +322,22 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
+	return i ? -EINVAL : 0;
+}
+
+static int vidioc_g_audio(struct file *file, void *priv,
+					struct v4l2_audio *a)
+{
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
 static int vidioc_s_audio(struct file *file, void *priv,
 					struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
-	return 0;
+	return a->index ? -EINVAL : 0;
 }
 
 enum {
@@ -355,25 +355,10 @@ static struct pci_device_id gemtek_pci_id[] =
 	{ 0 }
 };
 
-MODULE_DEVICE_TABLE( pci, gemtek_pci_id );
-
-static int mx = 1;
-
-static int gemtek_pci_exclusive_open(struct file *file)
-{
-	return test_and_set_bit(0, &in_use) ? -EBUSY : 0;
-}
-
-static int gemtek_pci_exclusive_release(struct file *file)
-{
-	clear_bit(0, &in_use);
-	return 0;
-}
+MODULE_DEVICE_TABLE(pci, gemtek_pci_id);
 
 static const struct v4l2_file_operations gemtek_pci_fops = {
 	.owner		= THIS_MODULE,
-	.open           = gemtek_pci_exclusive_open,
-	.release        = gemtek_pci_exclusive_release,
 	.ioctl		= video_ioctl2,
 };
 
@@ -392,114 +377,106 @@ static const struct v4l2_ioctl_ops gemtek_pci_ioctl_ops = {
 	.vidioc_s_ctrl      = vidioc_s_ctrl,
 };
 
-static struct video_device vdev_template = {
-	.name          	= "Gemtek PCI Radio",
-	.fops          	= &gemtek_pci_fops,
-	.ioctl_ops 	= &gemtek_pci_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
-static int __devinit gemtek_pci_probe( struct pci_dev *pci_dev, const struct pci_device_id *pci_id )
+static int __devinit gemtek_pci_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
 {
-	struct gemtek_pci_card *card;
-	struct video_device *devradio;
+	struct gemtek_pci *card;
+	struct v4l2_device *v4l2_dev;
+	int res;
 
-	if ( (card = kzalloc( sizeof( struct gemtek_pci_card ), GFP_KERNEL )) == NULL ) {
-		printk( KERN_ERR "gemtek_pci: out of memory\n" );
+	card = kzalloc(sizeof(struct gemtek_pci), GFP_KERNEL);
+	if (card == NULL) {
+		dev_err(&pdev->dev, "out of memory\n");
 		return -ENOMEM;
 	}
 
-	if ( pci_enable_device( pci_dev ) )
-		goto err_pci;
+	v4l2_dev = &card->v4l2_dev;
+	mutex_init(&card->lock);
+	card->pdev = pdev;
 
-	card->iobase = pci_resource_start( pci_dev, 0 );
-	card->length = pci_resource_len( pci_dev, 0 );
+	strlcpy(v4l2_dev->name, "gemtek_pci", sizeof(v4l2_dev->name));
 
-	if ( request_region( card->iobase, card->length, card_names[pci_id->driver_data] ) == NULL ) {
-		printk( KERN_ERR "gemtek_pci: i/o port already in use\n" );
-		goto err_pci;
+	res = v4l2_device_register(&pdev->dev, v4l2_dev);
+	if (res < 0) {
+		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		kfree(card);
+		return res;
 	}
 
-	pci_set_drvdata( pci_dev, card );
+	if (pci_enable_device(pdev))
+		goto err_pci;
 
-	if ( (devradio = kmalloc( sizeof( struct video_device ), GFP_KERNEL )) == NULL ) {
-		printk( KERN_ERR "gemtek_pci: out of memory\n" );
-		goto err_video;
+	card->iobase = pci_resource_start(pdev, 0);
+	card->length = pci_resource_len(pdev, 0);
+
+	if (request_region(card->iobase, card->length, card_names[pci_id->driver_data]) == NULL) {
+		v4l2_err(v4l2_dev, "i/o port already in use\n");
+		goto err_pci;
 	}
-	*devradio = vdev_template;
 
-	if (video_register_device(devradio, VFL_TYPE_RADIO, nr_radio) < 0) {
-		kfree( devradio );
+	strlcpy(card->vdev.name, v4l2_dev->name, sizeof(card->vdev.name));
+	card->vdev.v4l2_dev = v4l2_dev;
+	card->vdev.fops = &gemtek_pci_fops;
+	card->vdev.ioctl_ops = &gemtek_pci_ioctl_ops;
+	card->vdev.release = video_device_release_empty;
+	video_set_drvdata(&card->vdev, card);
+
+	if (video_register_device(&card->vdev, VFL_TYPE_RADIO, nr_radio) < 0)
 		goto err_video;
-	}
 
-	card->videodev = devradio;
-	video_set_drvdata(devradio, card);
-	gemtek_pci_mute( card );
+	gemtek_pci_mute(card);
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,22)
-	printk( KERN_INFO "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n",
-		pci_dev->revision, card->iobase, card->iobase + card->length - 1 );
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 22)
+	v4l2_info(v4l2_dev, "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n",
+		pdev->revision, card->iobase, card->iobase + card->length - 1);
 #else
-	printk( KERN_INFO "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n",
-		v4l_compat_pci_rev(pci_dev), card->iobase,
-		card->iobase + card->length - 1 );
+	v4l2_info(v4l2_dev, "Gemtek PCI Radio (rev. %d) found at 0x%04x-0x%04x.\n",
+		v4l_compat_pci_rev(pdev), card->iobase,
+		card->iobase + card->length - 1);
 #endif
 
 	return 0;
 
 err_video:
-	release_region( card->iobase, card->length );
+	release_region(card->iobase, card->length);
 
 err_pci:
-	kfree( card );
+	v4l2_device_unregister(v4l2_dev);
+	kfree(card);
 	return -ENODEV;
 }
 
-static void __devexit gemtek_pci_remove( struct pci_dev *pci_dev )
+static void __devexit gemtek_pci_remove(struct pci_dev *pdev)
 {
-	struct gemtek_pci_card *card = pci_get_drvdata( pci_dev );
-
-	video_unregister_device( card->videodev );
-	kfree( card->videodev );
+	struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
+	struct gemtek_pci *card = to_gemtek_pci(v4l2_dev);
 
-	release_region( card->iobase, card->length );
+	video_unregister_device(&card->vdev);
+	v4l2_device_unregister(v4l2_dev);
 
-	if ( mx )
-		gemtek_pci_mute( card );
+	release_region(card->iobase, card->length);
 
-	kfree( card );
+	if (mx)
+		gemtek_pci_mute(card);
 
-	pci_set_drvdata( pci_dev, NULL );
+	kfree(card);
 }
 
-static struct pci_driver gemtek_pci_driver =
-{
+static struct pci_driver gemtek_pci_driver = {
 	.name		= "gemtek_pci",
 	.id_table	= gemtek_pci_id,
 	.probe		= gemtek_pci_probe,
 	.remove		= __devexit_p(gemtek_pci_remove),
 };
 
-static int __init gemtek_pci_init_module( void )
+static int __init gemtek_pci_init(void)
 {
-	return pci_register_driver( &gemtek_pci_driver );
+	return pci_register_driver(&gemtek_pci_driver);
 }
 
-static void __exit gemtek_pci_cleanup_module( void )
+static void __exit gemtek_pci_exit(void)
 {
 	pci_unregister_driver(&gemtek_pci_driver);
 }
 
-MODULE_AUTHOR( "Vladimir Shebordaev <vshebordaev@mail.ru>" );
-MODULE_DESCRIPTION( "The video4linux driver for the Gemtek PCI Radio Card" );
-MODULE_LICENSE("GPL");
-
-module_param(mx, bool, 0);
-MODULE_PARM_DESC( mx, "single digit: 1 - turn off the turner upon module exit (default), 0 - do not" );
-module_param(nr_radio, int, 0);
-MODULE_PARM_DESC( nr_radio, "video4linux device number to use");
-
-module_init( gemtek_pci_init_module );
-module_exit( gemtek_pci_cleanup_module );
-
+module_init(gemtek_pci_init);
+module_exit(gemtek_pci_exit);
diff --git a/linux/drivers/media/radio/radio-gemtek.c b/linux/drivers/media/radio/radio-gemtek.c
index a1ae890c8..bc58ce7e2 100644
--- a/linux/drivers/media/radio/radio-gemtek.c
+++ b/linux/drivers/media/radio/radio-gemtek.c
@@ -20,17 +20,15 @@
 #include <linux/init.h>		/* Initdata			*/
 #include <linux/ioport.h>	/* request_region		*/
 #include <linux/delay.h>	/* udelay			*/
-#include <asm/io.h>		/* outb, outb_p			*/
-#include <asm/uaccess.h>	/* copy to/from user		*/
-#include "compat.h"
 #include <linux/videodev2.h>	/* kernel radio structs		*/
+#include <linux/version.h>	/* for KERNEL_VERSION MACRO	*/
+#include <linux/mutex.h>
+#include <linux/io.h>		/* outb, outb_p			*/
 #include <media/v4l2-ioctl.h>
-#include <media/v4l2-common.h>
-#include <linux/spinlock.h>
+#include <media/v4l2-device.h>
+#include "compat.h"
 
-#include <linux/version.h>	/* for KERNEL_VERSION MACRO	*/
-#define RADIO_VERSION KERNEL_VERSION(0,0,3)
-#define RADIO_BANNER "GemTek Radio card driver: v0.0.3"
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 3)
 
 /*
  * Module info.
@@ -58,7 +56,6 @@ static int shutdown	= 1;
 static int keepmuted	= 1;
 static int initmute	= 1;
 static int radio_nr	= -1;
-static unsigned long in_use;
 
 module_param(io, int, 0444);
 MODULE_PARM_DESC(io, "Force I/O port for the GemTek Radio card if automatic "
@@ -113,12 +110,19 @@ module_param(radio_nr, int, 0444);
 #define SHORT_DELAY 5		/* usec */
 #define LONG_DELAY 75		/* usec */
 
-struct gemtek_device {
+struct gemtek {
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	struct mutex lock;
 	unsigned long lastfreq;
 	int muted;
+	int verified;
+	int io;
 	u32 bu2614data;
 };
 
+static struct gemtek gemtek_card;
+
 #define BU2614_FREQ_BITS 	16 /* D0..D15, Frequency data		*/
 #define BU2614_PORT_BITS	3 /* P0..P2, Output port control data	*/
 #define BU2614_VOID_BITS	4 /* unused 				*/
@@ -154,10 +158,6 @@ struct gemtek_device {
 #define BU2614_FMUN_MASK	MKMASK(FMUN)
 #define BU2614_TEST_MASK	MKMASK(TEST)
 
-static struct gemtek_device gemtek_unit;
-
-static spinlock_t lock;
-
 /*
  * Set data which will be sent to BU2614FS.
  */
@@ -167,33 +167,33 @@ static spinlock_t lock;
 /*
  * Transmit settings to BU2614FS over GemTek IC.
  */
-static void gemtek_bu2614_transmit(struct gemtek_device *dev)
+static void gemtek_bu2614_transmit(struct gemtek *gt)
 {
 	int i, bit, q, mute;
 
-	spin_lock(&lock);
+	mutex_lock(&gt->lock);
 
-	mute = dev->muted ? GEMTEK_MT : 0x00;
+	mute = gt->muted ? GEMTEK_MT : 0x00;
 
-	outb_p(mute | GEMTEK_DA | GEMTEK_CK, io);
+	outb_p(mute | GEMTEK_DA | GEMTEK_CK, gt->io);
 	udelay(SHORT_DELAY);
-	outb_p(mute | GEMTEK_CE | GEMTEK_DA | GEMTEK_CK, io);
+	outb_p(mute | GEMTEK_CE | GEMTEK_DA | GEMTEK_CK, gt->io);
 	udelay(LONG_DELAY);
 
-	for (i = 0, q = dev->bu2614data; i < 32; i++, q >>= 1) {
-	    bit = (q & 1) ? GEMTEK_DA : 0;
-	    outb_p(mute | GEMTEK_CE | bit, io);
-	    udelay(SHORT_DELAY);
-	    outb_p(mute | GEMTEK_CE | bit | GEMTEK_CK, io);
-	    udelay(SHORT_DELAY);
+	for (i = 0, q = gt->bu2614data; i < 32; i++, q >>= 1) {
+		bit = (q & 1) ? GEMTEK_DA : 0;
+		outb_p(mute | GEMTEK_CE | bit, gt->io);
+		udelay(SHORT_DELAY);
+		outb_p(mute | GEMTEK_CE | bit | GEMTEK_CK, gt->io);
+		udelay(SHORT_DELAY);
 	}
 
-	outb_p(mute | GEMTEK_DA | GEMTEK_CK, io);
+	outb_p(mute | GEMTEK_DA | GEMTEK_CK, gt->io);
 	udelay(SHORT_DELAY);
-	outb_p(mute | GEMTEK_CE | GEMTEK_DA | GEMTEK_CK, io);
+	outb_p(mute | GEMTEK_CE | GEMTEK_DA | GEMTEK_CK, gt->io);
 	udelay(LONG_DELAY);
 
-	spin_unlock(&lock);
+	mutex_unlock(&gt->lock);
 }
 
 /*
@@ -207,107 +207,109 @@ static unsigned long gemtek_convfreq(unsigned long freq)
 /*
  * Set FM-frequency.
  */
-static void gemtek_setfreq(struct gemtek_device *dev, unsigned long freq)
+static void gemtek_setfreq(struct gemtek *gt, unsigned long freq)
 {
-
-	if (keepmuted && hardmute && dev->muted)
+	if (keepmuted && hardmute && gt->muted)
 		return;
 
-	if (freq < GEMTEK_LOWFREQ)
-		freq = GEMTEK_LOWFREQ;
-	else if (freq > GEMTEK_HIGHFREQ)
-		freq = GEMTEK_HIGHFREQ;
+	freq = clamp_val(freq, GEMTEK_LOWFREQ, GEMTEK_HIGHFREQ);
 
-	dev->lastfreq = freq;
-	dev->muted = 0;
+	gt->lastfreq = freq;
+	gt->muted = 0;
 
-	gemtek_bu2614_set(dev, BU2614_PORT, 0);
-	gemtek_bu2614_set(dev, BU2614_FMES, 0);
-	gemtek_bu2614_set(dev, BU2614_SWIN, 0);	/* FM-mode	*/
-	gemtek_bu2614_set(dev, BU2614_SWAL, 0);
-	gemtek_bu2614_set(dev, BU2614_FMUN, 1);	/* GT bit set	*/
-	gemtek_bu2614_set(dev, BU2614_TEST, 0);
+	gemtek_bu2614_set(gt, BU2614_PORT, 0);
+	gemtek_bu2614_set(gt, BU2614_FMES, 0);
+	gemtek_bu2614_set(gt, BU2614_SWIN, 0);	/* FM-mode	*/
+	gemtek_bu2614_set(gt, BU2614_SWAL, 0);
+	gemtek_bu2614_set(gt, BU2614_FMUN, 1);	/* GT bit set	*/
+	gemtek_bu2614_set(gt, BU2614_TEST, 0);
 
-	gemtek_bu2614_set(dev, BU2614_STDF, GEMTEK_STDF_3_125_KHZ);
-	gemtek_bu2614_set(dev, BU2614_FREQ, gemtek_convfreq(freq));
+	gemtek_bu2614_set(gt, BU2614_STDF, GEMTEK_STDF_3_125_KHZ);
+	gemtek_bu2614_set(gt, BU2614_FREQ, gemtek_convfreq(freq));
 
-	gemtek_bu2614_transmit(dev);
+	gemtek_bu2614_transmit(gt);
 }
 
 /*
  * Set mute flag.
  */
-static void gemtek_mute(struct gemtek_device *dev)
+static void gemtek_mute(struct gemtek *gt)
 {
 	int i;
-	dev->muted = 1;
+
+	gt->muted = 1;
 
 	if (hardmute) {
 		/* Turn off PLL, disable data output */
-		gemtek_bu2614_set(dev, BU2614_PORT, 0);
-		gemtek_bu2614_set(dev, BU2614_FMES, 0);	/* CT bit off	*/
-		gemtek_bu2614_set(dev, BU2614_SWIN, 0);	/* FM-mode	*/
-		gemtek_bu2614_set(dev, BU2614_SWAL, 0);
-		gemtek_bu2614_set(dev, BU2614_FMUN, 0);	/* GT bit off	*/
-		gemtek_bu2614_set(dev, BU2614_TEST, 0);
-		gemtek_bu2614_set(dev, BU2614_STDF, GEMTEK_PLL_OFF);
-		gemtek_bu2614_set(dev, BU2614_FREQ, 0);
-		gemtek_bu2614_transmit(dev);
-	} else {
-		spin_lock(&lock);
+		gemtek_bu2614_set(gt, BU2614_PORT, 0);
+		gemtek_bu2614_set(gt, BU2614_FMES, 0);	/* CT bit off	*/
+		gemtek_bu2614_set(gt, BU2614_SWIN, 0);	/* FM-mode	*/
+		gemtek_bu2614_set(gt, BU2614_SWAL, 0);
+		gemtek_bu2614_set(gt, BU2614_FMUN, 0);	/* GT bit off	*/
+		gemtek_bu2614_set(gt, BU2614_TEST, 0);
+		gemtek_bu2614_set(gt, BU2614_STDF, GEMTEK_PLL_OFF);
+		gemtek_bu2614_set(gt, BU2614_FREQ, 0);
+		gemtek_bu2614_transmit(gt);
+		return;
+	}
 
-		/* Read bus contents (CE, CK and DA). */
-		i = inb_p(io);
-		/* Write it back with mute flag set. */
-		outb_p((i >> 5) | GEMTEK_MT, io);
-		udelay(SHORT_DELAY);
+	mutex_lock(&gt->lock);
 
-		spin_unlock(&lock);
-	}
+	/* Read bus contents (CE, CK and DA). */
+	i = inb_p(gt->io);
+	/* Write it back with mute flag set. */
+	outb_p((i >> 5) | GEMTEK_MT, gt->io);
+	udelay(SHORT_DELAY);
+
+	mutex_unlock(&gt->lock);
 }
 
 /*
  * Unset mute flag.
  */
-static void gemtek_unmute(struct gemtek_device *dev)
+static void gemtek_unmute(struct gemtek *gt)
 {
 	int i;
-	dev->muted = 0;
 
+	gt->muted = 0;
 	if (hardmute) {
 		/* Turn PLL back on. */
-		gemtek_setfreq(dev, dev->lastfreq);
-	} else {
-		spin_lock(&lock);
+		gemtek_setfreq(gt, gt->lastfreq);
+		return;
+	}
+	mutex_lock(&gt->lock);
 
-		i = inb_p(io);
-		outb_p(i >> 5, io);
-		udelay(SHORT_DELAY);
+	i = inb_p(gt->io);
+	outb_p(i >> 5, gt->io);
+	udelay(SHORT_DELAY);
 
-		spin_unlock(&lock);
-	}
+	mutex_unlock(&gt->lock);
 }
 
 /*
  * Get signal strength (= stereo status).
  */
-static inline int gemtek_getsigstr(void)
+static inline int gemtek_getsigstr(struct gemtek *gt)
 {
-	return inb_p(io) & GEMTEK_NS ? 0 : 1;
+	int sig;
+
+	mutex_lock(&gt->lock);
+	sig = inb_p(gt->io) & GEMTEK_NS ? 0 : 1;
+	mutex_unlock(&gt->lock);
+	return sig;
 }
 
 /*
  * Check if requested card acts like GemTek Radio card.
  */
-static int gemtek_verify(int port)
+static int gemtek_verify(struct gemtek *gt, int port)
 {
-	static int verified = -1;
 	int i, q;
 
-	if (verified == port)
+	if (gt->verified == port)
 		return 1;
 
-	spin_lock(&lock);
+	mutex_lock(&gt->lock);
 
 	q = inb_p(port);	/* Read bus contents before probing. */
 	/* Try to turn on CE, CK and DA respectively and check if card responds
@@ -317,15 +319,15 @@ static int gemtek_verify(int port)
 		udelay(SHORT_DELAY);
 
 		if ((inb_p(port) & (~GEMTEK_NS)) != (0x17 | (1 << (i + 5)))) {
-			spin_unlock(&lock);
+			mutex_unlock(&gt->lock);
 			return 0;
 		}
 	}
 	outb_p(q >> 5, port);	/* Write bus contents back. */
 	udelay(SHORT_DELAY);
 
-	spin_unlock(&lock);
-	verified = port;
+	mutex_unlock(&gt->lock);
+	gt->verified = port;
 
 	return 1;
 }
@@ -333,42 +335,41 @@ static int gemtek_verify(int port)
 /*
  * Automatic probing for card.
  */
-static int gemtek_probe(void)
+static int gemtek_probe(struct gemtek *gt)
 {
+	struct v4l2_device *v4l2_dev = &gt->v4l2_dev;
 	int ioports[] = { 0x20c, 0x30c, 0x24c, 0x34c, 0x248, 0x28c };
 	int i;
 
 	if (!probe) {
-		printk(KERN_INFO "Automatic device probing disabled.\n");
+		v4l2_info(v4l2_dev, "Automatic device probing disabled.\n");
 		return -1;
 	}
 
-	printk(KERN_INFO "Automatic device probing enabled.\n");
+	v4l2_info(v4l2_dev, "Automatic device probing enabled.\n");
 
 	for (i = 0; i < ARRAY_SIZE(ioports); ++i) {
-		printk(KERN_INFO "Trying I/O port 0x%x...\n", ioports[i]);
+		v4l2_info(v4l2_dev, "Trying I/O port 0x%x...\n", ioports[i]);
 
 		if (!request_region(ioports[i], 1, "gemtek-probe")) {
-			printk(KERN_WARNING "I/O port 0x%x busy!\n",
+			v4l2_warn(v4l2_dev, "I/O port 0x%x busy!\n",
 			       ioports[i]);
 			continue;
 		}
 
-		if (gemtek_verify(ioports[i])) {
-			printk(KERN_INFO "Card found from I/O port "
+		if (gemtek_verify(gt, ioports[i])) {
+			v4l2_info(v4l2_dev, "Card found from I/O port "
 			       "0x%x!\n", ioports[i]);
 
 			release_region(ioports[i], 1);
-
-			io = ioports[i];
-			return io;
+			gt->io = ioports[i];
+			return gt->io;
 		}
 
 		release_region(ioports[i], 1);
 	}
 
-	printk(KERN_ERR "Automatic probing failed!\n");
-
+	v4l2_err(v4l2_dev, "Automatic probing failed!\n");
 	return -1;
 }
 
@@ -376,40 +377,8 @@ static int gemtek_probe(void)
  * Video 4 Linux stuff.
  */
 
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id = V4L2_CID_AUDIO_MUTE,
-		.name = "Mute",
-		.minimum = 0,
-		.maximum = 1,
-		.default_value = 1,
-		.type = V4L2_CTRL_TYPE_BOOLEAN,
-	}, {
-		.id = V4L2_CID_AUDIO_VOLUME,
-		.name = "Volume",
-		.minimum = 0,
-		.maximum = 65535,
-		.step = 65535,
-		.default_value = 0xff,
-		.type = V4L2_CTRL_TYPE_INTEGER,
-	}
-};
-
-static int gemtek_exclusive_open(struct file *file)
-{
-	return test_and_set_bit(0, &in_use) ? -EBUSY : 0;
-}
-
-static int gemtek_exclusive_release(struct file *file)
-{
-	clear_bit(0, &in_use);
-	return 0;
-}
-
 static const struct v4l2_file_operations gemtek_fops = {
 	.owner		= THIS_MODULE,
-	.open		= gemtek_exclusive_open,
-	.release	= gemtek_exclusive_release,
 	.ioctl		= video_ioctl2,
 };
 
@@ -418,23 +387,25 @@ static int vidioc_querycap(struct file *file, void *priv,
 {
 	strlcpy(v->driver, "radio-gemtek", sizeof(v->driver));
 	strlcpy(v->card, "GemTek", sizeof(v->card));
-	sprintf(v->bus_info, "ISA");
+	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
 	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
 static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v)
 {
+	struct gemtek *gt = video_drvdata(file);
+
 	if (v->index > 0)
 		return -EINVAL;
 
-	strcpy(v->name, "FM");
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
 	v->rangelow = GEMTEK_LOWFREQ;
 	v->rangehigh = GEMTEK_HIGHFREQ;
 	v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
-	v->signal = 0xffff * gemtek_getsigstr();
+	v->signal = 0xffff * gemtek_getsigstr(gt);
 	if (v->signal) {
 		v->audmode = V4L2_TUNER_MODE_STEREO;
 		v->rxsubchans = V4L2_TUNER_SUB_STEREO;
@@ -442,65 +413,56 @@ static int vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *v)
 		v->audmode = V4L2_TUNER_MODE_MONO;
 		v->rxsubchans = V4L2_TUNER_SUB_MONO;
 	}
-
 	return 0;
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
-	return 0;
+	return (v->index != 0) ? -EINVAL : 0;
 }
 
-static int vidioc_s_frequency(struct file *file, void *priv,
+static int vidioc_g_frequency(struct file *file, void *priv,
 			      struct v4l2_frequency *f)
 {
-	struct gemtek_device *rt = video_drvdata(file);
-
-	gemtek_setfreq(rt, f->frequency);
+	struct gemtek *gt = video_drvdata(file);
 
+	if (f->tuner != 0)
+		return -EINVAL;
+	f->type = V4L2_TUNER_RADIO;
+	f->frequency = gt->lastfreq;
 	return 0;
 }
 
-static int vidioc_g_frequency(struct file *file, void *priv,
+static int vidioc_s_frequency(struct file *file, void *priv,
 			      struct v4l2_frequency *f)
 {
-	struct gemtek_device *rt = video_drvdata(file);
+	struct gemtek *gt = video_drvdata(file);
 
-	f->type = V4L2_TUNER_RADIO;
-	f->frequency = rt->lastfreq;
+	if (f->tuner != 0 || f->type != V4L2_TUNER_RADIO)
+		return -EINVAL;
+	gemtek_setfreq(gt, f->frequency);
 	return 0;
 }
 
 static int vidioc_queryctrl(struct file *file, void *priv,
 			    struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); ++i) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
+	default:
+		return -EINVAL;
 	}
-	return -EINVAL;
 }
 
 static int vidioc_g_ctrl(struct file *file, void *priv,
 			 struct v4l2_control *ctrl)
 {
-	struct gemtek_device *rt = video_drvdata(file);
+	struct gemtek *gt = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
-		ctrl->value = rt->muted;
-		return 0;
-	case V4L2_CID_AUDIO_VOLUME:
-		if (rt->muted)
-			ctrl->value = 0;
-		else
-			ctrl->value = 65535;
+		ctrl->value = gt->muted;
 		return 0;
 	}
 	return -EINVAL;
@@ -509,35 +471,19 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 static int vidioc_s_ctrl(struct file *file, void *priv,
 			 struct v4l2_control *ctrl)
 {
-	struct gemtek_device *rt = video_drvdata(file);
+	struct gemtek *gt = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
 		if (ctrl->value)
-			gemtek_mute(rt);
+			gemtek_mute(gt);
 		else
-			gemtek_unmute(rt);
-		return 0;
-	case V4L2_CID_AUDIO_VOLUME:
-		if (ctrl->value)
-			gemtek_unmute(rt);
-		else
-			gemtek_mute(rt);
+			gemtek_unmute(gt);
 		return 0;
 	}
 	return -EINVAL;
 }
 
-static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
-}
-
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 {
 	*i = 0;
@@ -546,16 +492,20 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
+	return (i != 0) ? -EINVAL : 0;
+}
+
+static int vidioc_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
+{
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
 static int vidioc_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
-	return 0;
+	return (a->index != 0) ? -EINVAL : 0;
 }
 
 static const struct v4l2_ioctl_ops gemtek_ioctl_ops = {
@@ -573,62 +523,73 @@ static const struct v4l2_ioctl_ops gemtek_ioctl_ops = {
 	.vidioc_s_ctrl		= vidioc_s_ctrl
 };
 
-static struct video_device gemtek_radio = {
-	.name		= "GemTek Radio card",
-	.fops		= &gemtek_fops,
-	.ioctl_ops 	= &gemtek_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
 /*
  * Initialization / cleanup related stuff.
  */
 
-/*
- * Initilize card.
- */
 static int __init gemtek_init(void)
 {
-	printk(KERN_INFO RADIO_BANNER "\n");
+	struct gemtek *gt = &gemtek_card;
+	struct v4l2_device *v4l2_dev = &gt->v4l2_dev;
+	int res;
 
-	spin_lock_init(&lock);
+	strlcpy(v4l2_dev->name, "gemtek", sizeof(v4l2_dev->name));
 
-	gemtek_probe();
-	if (io) {
-		if (!request_region(io, 1, "gemtek")) {
-			printk(KERN_ERR "I/O port 0x%x already in use.\n", io);
+	v4l2_info(v4l2_dev, "GemTek Radio card driver: v0.0.3\n");
+
+	mutex_init(&gt->lock);
+
+	gt->verified = -1;
+	gt->io = io;
+	gemtek_probe(gt);
+	if (gt->io) {
+		if (!request_region(gt->io, 1, "gemtek")) {
+			v4l2_err(v4l2_dev, "I/O port 0x%x already in use.\n", gt->io);
 			return -EBUSY;
 		}
 
-		if (!gemtek_verify(io))
-			printk(KERN_WARNING "Card at I/O port 0x%x does not "
+		if (!gemtek_verify(gt, gt->io))
+			v4l2_warn(v4l2_dev, "Card at I/O port 0x%x does not "
 			       "respond properly, check your "
-			       "configuration.\n", io);
+			       "configuration.\n", gt->io);
 		else
-			printk(KERN_INFO "Using I/O port 0x%x.\n", io);
+			v4l2_info(v4l2_dev, "Using I/O port 0x%x.\n", gt->io);
 	} else if (probe) {
-		printk(KERN_ERR "Automatic probing failed and no "
+		v4l2_err(v4l2_dev, "Automatic probing failed and no "
 		       "fixed I/O port defined.\n");
 		return -ENODEV;
 	} else {
-		printk(KERN_ERR "Automatic probing disabled but no fixed "
+		v4l2_err(v4l2_dev, "Automatic probing disabled but no fixed "
 		       "I/O port defined.");
 		return -EINVAL;
 	}
 
-	video_set_drvdata(&gemtek_radio, &gemtek_unit);
+	res = v4l2_device_register(NULL, v4l2_dev);
+	if (res < 0) {
+		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		release_region(gt->io, 1);
+		return res;
+	}
 
-	if (video_register_device(&gemtek_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
-		release_region(io, 1);
+	strlcpy(gt->vdev.name, v4l2_dev->name, sizeof(gt->vdev.name));
+	gt->vdev.v4l2_dev = v4l2_dev;
+	gt->vdev.fops = &gemtek_fops;
+	gt->vdev.ioctl_ops = &gemtek_ioctl_ops;
+	gt->vdev.release = video_device_release_empty;
+	video_set_drvdata(&gt->vdev, gt);
+
+	if (video_register_device(&gt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(v4l2_dev);
+		release_region(gt->io, 1);
 		return -EBUSY;
 	}
 
 	/* Set defaults */
-	gemtek_unit.lastfreq = GEMTEK_LOWFREQ;
-	gemtek_unit.bu2614data = 0;
+	gt->lastfreq = GEMTEK_LOWFREQ;
+	gt->bu2614data = 0;
 
 	if (initmute)
-		gemtek_mute(&gemtek_unit);
+		gemtek_mute(gt);
 
 	return 0;
 }
@@ -638,15 +599,19 @@ static int __init gemtek_init(void)
  */
 static void __exit gemtek_exit(void)
 {
+	struct gemtek *gt = &gemtek_card;
+	struct v4l2_device *v4l2_dev = &gt->v4l2_dev;
+
 	if (shutdown) {
 		hardmute = 1;	/* Turn off PLL */
-		gemtek_mute(&gemtek_unit);
+		gemtek_mute(gt);
 	} else {
-		printk(KERN_INFO "Module unloaded but card not muted!\n");
+		v4l2_info(v4l2_dev, "Module unloaded but card not muted!\n");
 	}
 
-	video_unregister_device(&gemtek_radio);
-	release_region(io, 1);
+	video_unregister_device(&gt->vdev);
+	v4l2_device_unregister(&gt->v4l2_dev);
+	release_region(gt->io, 1);
 }
 
 module_init(gemtek_init);
diff --git a/linux/drivers/media/radio/radio-maestro.c b/linux/drivers/media/radio/radio-maestro.c
index 7442be614..603e629e1 100644
--- a/linux/drivers/media/radio/radio-maestro.c
+++ b/linux/drivers/media/radio/radio-maestro.c
@@ -22,28 +22,23 @@
 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/delay.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
+#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
 #include <linux/pci.h>
 #include <linux/videodev2.h>
-#include <media/v4l2-common.h>
+#include <linux/io.h>
+#include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
 #include "compat.h"
 
-#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
-#define RADIO_VERSION KERNEL_VERSION(0,0,6)
-#define DRIVER_VERSION	"0.06"
+MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl");
+MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio.");
+MODULE_LICENSE("GPL");
 
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	}
-};
+static int radio_nr = -1;
+module_param(radio_nr, int, 0);
+
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 6)
+#define DRIVER_VERSION	"0.06"
 
 #define GPIO_DATA	0x60   /* port offset from ESS_IO_BASE */
 
@@ -73,62 +68,27 @@ static struct v4l2_queryctrl radio_qctrl[] = {
 
 #define BITS2FREQ(x)	((x) * FREQ_STEP - FREQ_IF)
 
-static int radio_nr = -1;
-module_param(radio_nr, int, 0);
-
-static unsigned long in_use;
+struct maestro {
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	struct pci_dev *pdev;
+	struct mutex lock;
 
-static int maestro_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
+	u16	io;	/* base of Maestro card radio io (GPIO_DATA)*/
+	u16	muted;	/* VIDEO_AUDIO_MUTE */
+	u16	stereo;	/* VIDEO_TUNER_STEREO_ON */
+	u16	tuned;	/* signal strength (0 or 0xffff) */
+};
 
-static int maestro_exclusive_open(struct file *file)
+static inline struct maestro *to_maestro(struct v4l2_device *v4l2_dev)
 {
-	return test_and_set_bit(0, &in_use) ? -EBUSY : 0;
+	return container_of(v4l2_dev, struct maestro, v4l2_dev);
 }
 
-static int maestro_exclusive_release(struct file *file)
+static u32 radio_bits_get(struct maestro *dev)
 {
-	clear_bit(0, &in_use);
-	return 0;
-}
-
-static void maestro_remove(struct pci_dev *pdev);
-
-static struct pci_device_id maestro_r_pci_tbl[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1968),
-		.class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
-		.class_mask = 0xffff00 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1978),
-		.class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
-		.class_mask = 0xffff00 },
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, maestro_r_pci_tbl);
-
-static struct pci_driver maestro_r_driver = {
-	.name		= "maestro_radio",
-	.id_table	= maestro_r_pci_tbl,
-	.probe		= maestro_probe,
-	.remove		= __devexit_p(maestro_remove),
-};
-
-static const struct v4l2_file_operations maestro_fops = {
-	.owner		= THIS_MODULE,
-	.open           = maestro_exclusive_open,
-	.release        = maestro_exclusive_release,
-	.ioctl		= video_ioctl2,
-};
-
-struct radio_device {
-	u16	io,	/* base of Maestro card radio io (GPIO_DATA)*/
-		muted,	/* VIDEO_AUDIO_MUTE */
-		stereo,	/* VIDEO_TUNER_STEREO_ON */
-		tuned;	/* signal strength (0 or 0xffff) */
-};
-
-static u32 radio_bits_get(struct radio_device *dev)
-{
-	register u16 io=dev->io, l, rdata;
-	register u32 data=0;
+	u16 io = dev->io, l, rdata;
+	u32 data = 0;
 	u16 omask;
 
 	omask = inw(io + IO_MASK);
@@ -136,25 +96,23 @@ static u32 radio_bits_get(struct radio_device *dev)
 	outw(0, io);
 	udelay(16);
 
-	for (l=24;l--;) {
+	for (l = 24; l--;) {
 		outw(STR_CLK, io);		/* HI state */
 		udelay(2);
-		if(!l)
+		if (!l)
 			dev->tuned = inw(io) & STR_MOST ? 0 : 0xffff;
 		outw(0, io);			/* LO state */
 		udelay(2);
 		data <<= 1;			/* shift data */
 		rdata = inw(io);
-		if(!l)
-			dev->stereo =  rdata & STR_MOST ?
-			0 : 1;
-		else
-			if(rdata & STR_DATA)
-				data++;
+		if (!l)
+			dev->stereo = (rdata & STR_MOST) ?  0 : 1;
+		else if (rdata & STR_DATA)
+			data++;
 		udelay(2);
 	}
 
-	if(dev->muted)
+	if (dev->muted)
 		outw(STR_WREN, io);
 
 	udelay(4);
@@ -163,18 +121,18 @@ static u32 radio_bits_get(struct radio_device *dev)
 	return data & 0x3ffe;
 }
 
-static void radio_bits_set(struct radio_device *dev, u32 data)
+static void radio_bits_set(struct maestro *dev, u32 data)
 {
-	register u16 io=dev->io, l, bits;
+	u16 io = dev->io, l, bits;
 	u16 omask, odir;
 
 	omask = inw(io + IO_MASK);
-	odir  = (inw(io + IO_DIR) & ~STR_DATA) | (STR_CLK | STR_WREN);
+	odir = (inw(io + IO_DIR) & ~STR_DATA) | (STR_CLK | STR_WREN);
 	outw(odir | STR_DATA, io + IO_DIR);
 	outw(~(STR_DATA | STR_CLK | STR_WREN), io + IO_MASK);
 	udelay(16);
-	for (l=25;l;l--) {
-		bits = ((data >> 18) & STR_DATA) | STR_WREN ;
+	for (l = 25; l; l--) {
+		bits = ((data >> 18) & STR_DATA) | STR_WREN;
 		data <<= 1;			/* shift data */
 		outw(bits, io);			/* start strobe */
 		udelay(2);
@@ -184,7 +142,7 @@ static void radio_bits_set(struct radio_device *dev, u32 data)
 		udelay(4);
 	}
 
-	if(!dev->muted)
+	if (!dev->muted)
 		outw(0, io);
 
 	udelay(4);
@@ -196,78 +154,79 @@ static void radio_bits_set(struct radio_device *dev, u32 data)
 static int vidioc_querycap(struct file *file, void  *priv,
 					struct v4l2_capability *v)
 {
+	struct maestro *dev = video_drvdata(file);
+
 	strlcpy(v->driver, "radio-maestro", sizeof(v->driver));
 	strlcpy(v->card, "Maestro Radio", sizeof(v->card));
-	sprintf(v->bus_info, "PCI");
+	snprintf(v->bus_info, sizeof(v->bus_info), "PCI:%s", pci_name(dev->pdev));
 	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
 static int vidioc_g_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	struct radio_device *card = video_drvdata(file);
+	struct maestro *dev = video_drvdata(file);
 
 	if (v->index > 0)
 		return -EINVAL;
 
-	(void)radio_bits_get(card);
+	mutex_lock(&dev->lock);
+	radio_bits_get(dev);
 
-	strcpy(v->name, "FM");
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
 	v->rangelow = FREQ_LO;
 	v->rangehigh = FREQ_HI;
-	v->rxsubchans = V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
+	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
 	v->capability = V4L2_TUNER_CAP_LOW;
-	if(card->stereo)
+	if (dev->stereo)
 		v->audmode = V4L2_TUNER_MODE_STEREO;
 	else
 		v->audmode = V4L2_TUNER_MODE_MONO;
-	v->signal = card->tuned;
+	v->signal = dev->tuned;
+	mutex_unlock(&dev->lock);
 	return 0;
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
-	return 0;
+	return v->index ? -EINVAL : 0;
 }
 
 static int vidioc_s_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct radio_device *card = video_drvdata(file);
+	struct maestro *dev = video_drvdata(file);
 
 	if (f->frequency < FREQ_LO || f->frequency > FREQ_HI)
 		return -EINVAL;
-	radio_bits_set(card, FREQ2BITS(f->frequency));
+	mutex_lock(&dev->lock);
+	radio_bits_set(dev, FREQ2BITS(f->frequency));
+	mutex_unlock(&dev->lock);
 	return 0;
 }
 
 static int vidioc_g_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct radio_device *card = video_drvdata(file);
+	struct maestro *dev = video_drvdata(file);
 
 	f->type = V4L2_TUNER_RADIO;
-	f->frequency = BITS2FREQ(radio_bits_get(card));
+	mutex_lock(&dev->lock);
+	f->frequency = BITS2FREQ(radio_bits_get(dev));
+	mutex_unlock(&dev->lock);
 	return 0;
 }
 
 static int vidioc_queryctrl(struct file *file, void *priv,
 					struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]),
-						sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
 	}
 	return -EINVAL;
 }
@@ -275,11 +234,11 @@ static int vidioc_queryctrl(struct file *file, void *priv,
 static int vidioc_g_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct radio_device *card = video_drvdata(file);
+	struct maestro *dev = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
-		ctrl->value = card->muted;
+		ctrl->value = dev->muted;
 		return 0;
 	}
 	return -EINVAL;
@@ -288,34 +247,26 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 static int vidioc_s_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct radio_device *card = video_drvdata(file);
-	register u16 io = card->io;
-	register u16 omask = inw(io + IO_MASK);
+	struct maestro *dev = video_drvdata(file);
+	u16 io = dev->io;
+	u16 omask;
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
+		mutex_lock(&dev->lock);
+		omask = inw(io + IO_MASK);
 		outw(~STR_WREN, io + IO_MASK);
-		outw((card->muted = ctrl->value ) ?
-				STR_WREN : 0, io);
+		dev->muted = ctrl->value;
+		outw(dev->muted ? STR_WREN : 0, io);
 		udelay(4);
 		outw(omask, io + IO_MASK);
 		msleep(125);
+		mutex_unlock(&dev->lock);
 		return 0;
 	}
 	return -EINVAL;
 }
 
-static int vidioc_g_audio(struct file *file, void *priv,
-					struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
-}
-
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 {
 	*i = 0;
@@ -324,20 +275,45 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
+	return i ? -EINVAL : 0;
+}
+
+static int vidioc_g_audio(struct file *file, void *priv,
+					struct v4l2_audio *a)
+{
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
 static int vidioc_s_audio(struct file *file, void *priv,
 					struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
-	return 0;
+	return a->index ? -EINVAL : 0;
 }
 
-static u16 __devinit radio_power_on(struct radio_device *dev)
+static const struct v4l2_file_operations maestro_fops = {
+	.owner		= THIS_MODULE,
+	.ioctl		= video_ioctl2,
+};
+
+static const struct v4l2_ioctl_ops maestro_ioctl_ops = {
+	.vidioc_querycap    = vidioc_querycap,
+	.vidioc_g_tuner     = vidioc_g_tuner,
+	.vidioc_s_tuner     = vidioc_s_tuner,
+	.vidioc_g_audio     = vidioc_g_audio,
+	.vidioc_s_audio     = vidioc_s_audio,
+	.vidioc_g_input     = vidioc_g_input,
+	.vidioc_s_input     = vidioc_s_input,
+	.vidioc_g_frequency = vidioc_g_frequency,
+	.vidioc_s_frequency = vidioc_s_frequency,
+	.vidioc_queryctrl   = vidioc_queryctrl,
+	.vidioc_g_ctrl      = vidioc_g_ctrl,
+	.vidioc_s_ctrl      = vidioc_s_ctrl,
+};
+
+static u16 __devinit radio_power_on(struct maestro *dev)
 {
 	register u16 io = dev->io;
 	register u32 ofreq;
@@ -361,33 +337,11 @@ static u16 __devinit radio_power_on(struct radio_device *dev)
 	return (ofreq == radio_bits_get(dev));
 }
 
-static const struct v4l2_ioctl_ops maestro_ioctl_ops = {
-	.vidioc_querycap    = vidioc_querycap,
-	.vidioc_g_tuner     = vidioc_g_tuner,
-	.vidioc_s_tuner     = vidioc_s_tuner,
-	.vidioc_g_audio     = vidioc_g_audio,
-	.vidioc_s_audio     = vidioc_s_audio,
-	.vidioc_g_input     = vidioc_g_input,
-	.vidioc_s_input     = vidioc_s_input,
-	.vidioc_g_frequency = vidioc_g_frequency,
-	.vidioc_s_frequency = vidioc_s_frequency,
-	.vidioc_queryctrl   = vidioc_queryctrl,
-	.vidioc_g_ctrl      = vidioc_g_ctrl,
-	.vidioc_s_ctrl      = vidioc_s_ctrl,
-};
-
-static struct video_device maestro_radio = {
-	.name           = "Maestro radio",
-	.fops           = &maestro_fops,
-	.ioctl_ops 	= &maestro_ioctl_ops,
-	.release	= video_device_release,
-};
-
 static int __devinit maestro_probe(struct pci_dev *pdev,
 	const struct pci_device_id *ent)
 {
-	struct radio_device *radio_unit;
-	struct video_device *maestro_radio_inst;
+	struct maestro *dev;
+	struct v4l2_device *v4l2_dev;
 	int retval;
 
 	retval = pci_enable_device(pdev);
@@ -398,46 +352,53 @@ static int __devinit maestro_probe(struct pci_dev *pdev,
 
 	retval = -ENOMEM;
 
-	radio_unit = kzalloc(sizeof(*radio_unit), GFP_KERNEL);
-	if (radio_unit == NULL) {
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (dev == NULL) {
 		dev_err(&pdev->dev, "not enough memory\n");
 		goto err;
 	}
 
-	radio_unit->io = pci_resource_start(pdev, 0) + GPIO_DATA;
+	v4l2_dev = &dev->v4l2_dev;
+	mutex_init(&dev->lock);
+	dev->pdev = pdev;
 
-	maestro_radio_inst = video_device_alloc();
-	if (maestro_radio_inst == NULL) {
-		dev_err(&pdev->dev, "not enough memory\n");
+	strlcpy(v4l2_dev->name, "maestro", sizeof(v4l2_dev->name));
+
+	retval = v4l2_device_register(&pdev->dev, v4l2_dev);
+	if (retval < 0) {
+		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
 		goto errfr;
 	}
 
-	memcpy(maestro_radio_inst, &maestro_radio, sizeof(maestro_radio));
-	video_set_drvdata(maestro_radio_inst, radio_unit);
-	pci_set_drvdata(pdev, maestro_radio_inst);
+	dev->io = pci_resource_start(pdev, 0) + GPIO_DATA;
+
+	strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
+	dev->vdev.v4l2_dev = v4l2_dev;
+	dev->vdev.fops = &maestro_fops;
+	dev->vdev.ioctl_ops = &maestro_ioctl_ops;
+	dev->vdev.release = video_device_release_empty;
+	video_set_drvdata(&dev->vdev, dev);
 
-	retval = video_register_device(maestro_radio_inst, VFL_TYPE_RADIO, radio_nr);
+	retval = video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr);
 	if (retval) {
-		printk(KERN_ERR "can't register video device!\n");
+		v4l2_err(v4l2_dev, "can't register video device!\n");
 		goto errfr1;
 	}
 
-	if (!radio_power_on(radio_unit)) {
+	if (!radio_power_on(dev)) {
 		retval = -EIO;
 		goto errunr;
 	}
 
-	dev_info(&pdev->dev, "version " DRIVER_VERSION " time " __TIME__ "  "
-		 __DATE__ "\n");
-	dev_info(&pdev->dev, "radio chip initialized\n");
+	v4l2_info(v4l2_dev, "version " DRIVER_VERSION "\n");
 
 	return 0;
 errunr:
-	video_unregister_device(maestro_radio_inst);
+	video_unregister_device(&dev->vdev);
 errfr1:
-	video_device_release(maestro_radio_inst);
+	v4l2_device_unregister(v4l2_dev);
 errfr:
-	kfree(radio_unit);
+	kfree(dev);
 err:
 	return retval;
 
@@ -445,11 +406,31 @@ err:
 
 static void __devexit maestro_remove(struct pci_dev *pdev)
 {
-	struct video_device *vdev = pci_get_drvdata(pdev);
+	struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
+	struct maestro *dev = to_maestro(v4l2_dev);
 
-	video_unregister_device(vdev);
+	video_unregister_device(&dev->vdev);
+	v4l2_device_unregister(&dev->v4l2_dev);
 }
 
+static struct pci_device_id maestro_r_pci_tbl[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1968),
+		.class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
+		.class_mask = 0xffff00 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_ESS, PCI_DEVICE_ID_ESS_ESS1978),
+		.class = PCI_CLASS_MULTIMEDIA_AUDIO << 8,
+		.class_mask = 0xffff00 },
+	{ 0 }
+};
+MODULE_DEVICE_TABLE(pci, maestro_r_pci_tbl);
+
+static struct pci_driver maestro_r_driver = {
+	.name		= "maestro_radio",
+	.id_table	= maestro_r_pci_tbl,
+	.probe		= maestro_probe,
+	.remove		= __devexit_p(maestro_remove),
+};
+
 static int __init maestro_radio_init(void)
 {
 	int retval = pci_register_driver(&maestro_r_driver);
@@ -467,7 +448,3 @@ static void __exit maestro_radio_exit(void)
 
 module_init(maestro_radio_init);
 module_exit(maestro_radio_exit);
-
-MODULE_AUTHOR("Adam Tlalka, atlka@pg.gda.pl");
-MODULE_DESCRIPTION("Radio driver for the Maestro PCI sound card radio.");
-MODULE_LICENSE("GPL");
diff --git a/linux/drivers/media/radio/radio-maxiradio.c b/linux/drivers/media/radio/radio-maxiradio.c
index cb9d07bc7..da86c058c 100644
--- a/linux/drivers/media/radio/radio-maxiradio.c
+++ b/linux/drivers/media/radio/radio-maxiradio.c
@@ -37,39 +37,33 @@
 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/delay.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
 #include <linux/mutex.h>
-
 #include <linux/pci.h>
 #include <linux/videodev2.h>
-#include <media/v4l2-common.h>
+#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
+#include <linux/io.h>
+#include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
 #include "compat.h"
 
+MODULE_AUTHOR("Dimitromanolakis Apostolos, apdim@grecian.net");
+MODULE_DESCRIPTION("Radio driver for the Guillemot Maxi Radio FM2000 radio.");
+MODULE_LICENSE("GPL");
+
+static int radio_nr = -1;
+module_param(radio_nr, int, 0);
+
+static int debug;
+
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "activates debug info");
+
 #define DRIVER_VERSION	"0.77"
 
-#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
-#define RADIO_VERSION KERNEL_VERSION(0,7,7)
-
-static struct video_device maxiradio_radio;
-
-#define dprintk(num, fmt, arg...)                                          \
-	do {                                                               \
-		if (maxiradio_radio.debug >= num)                          \
-			printk(KERN_DEBUG "%s: " fmt,                      \
-				maxiradio_radio.name, ## arg); } while (0)
-
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	}
-};
+#define RADIO_VERSION KERNEL_VERSION(0, 7, 7)
+
+#define dprintk(dev, num, fmt, arg...) \
+	v4l2_dbg(num, debug, &dev->v4l2_dev, fmt, ## arg)
 
 #ifndef PCI_VENDOR_ID_GUILLEMOT
 #define PCI_VENDOR_ID_GUILLEMOT 0x5046
@@ -81,90 +75,70 @@ static struct v4l2_queryctrl radio_qctrl[] = {
 
 
 /* TEA5757 pin mappings */
-static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16 ;
-
-static int radio_nr = -1;
-module_param(radio_nr, int, 0);
-
-static unsigned long in_use;
+static const int clk = 1, data = 2, wren = 4, mo_st = 8, power = 16;
 
-#define FREQ_LO		 50*16000
-#define FREQ_HI		150*16000
+#define FREQ_LO		(50 * 16000)
+#define FREQ_HI		(150 * 16000)
 
 #define FREQ_IF         171200 /* 10.7*16000   */
 #define FREQ_STEP       200    /* 12.5*16      */
 
 /* (x==fmhz*16*1000) -> bits */
-#define FREQ2BITS(x)	((( (unsigned int)(x)+FREQ_IF+(FREQ_STEP<<1)) \
-			/(FREQ_STEP<<2))<<2)
+#define FREQ2BITS(x) \
+  ((((unsigned int)(x) + FREQ_IF + (FREQ_STEP << 1)) / (FREQ_STEP << 2)) << 2)
 
 #define BITS2FREQ(x)	((x) * FREQ_STEP - FREQ_IF)
 
 
-static int maxiradio_exclusive_open(struct file *file)
-{
-	return test_and_set_bit(0, &in_use) ? -EBUSY : 0;
-}
-
-static int maxiradio_exclusive_release(struct file *file)
+struct maxiradio
 {
-	clear_bit(0, &in_use);
-	return 0;
-}
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	struct pci_dev *pdev;
 
-static const struct v4l2_file_operations maxiradio_fops = {
-	.owner		= THIS_MODULE,
-	.open           = maxiradio_exclusive_open,
-	.release        = maxiradio_exclusive_release,
-	.ioctl          = video_ioctl2,
-};
-
-static struct radio_device
-{
-	__u16	io,	/* base of radio io */
-		muted,	/* VIDEO_AUDIO_MUTE */
-		stereo,	/* VIDEO_TUNER_STEREO_ON */
-		tuned;	/* signal strength (0 or 0xffff) */
+	u16	io;	/* base of radio io */
+	u16	muted;	/* VIDEO_AUDIO_MUTE */
+	u16	stereo;	/* VIDEO_TUNER_STEREO_ON */
+	u16	tuned;	/* signal strength (0 or 0xffff) */
 
 	unsigned long freq;
 
 	struct mutex lock;
-} radio_unit = {
-	.muted =1,
-	.freq = FREQ_LO,
 };
 
-static void outbit(unsigned long bit, __u16 io)
+static inline struct maxiradio *to_maxiradio(struct v4l2_device *v4l2_dev)
 {
-	if (bit != 0)
-		{
-			outb(  power|wren|data     ,io); udelay(4);
-			outb(  power|wren|data|clk ,io); udelay(4);
-			outb(  power|wren|data     ,io); udelay(4);
-		}
-	else
-		{
-			outb(  power|wren          ,io); udelay(4);
-			outb(  power|wren|clk      ,io); udelay(4);
-			outb(  power|wren          ,io); udelay(4);
-		}
+	return container_of(v4l2_dev, struct maxiradio, v4l2_dev);
 }
 
-static void turn_power(__u16 io, int p)
+static void outbit(unsigned long bit, u16 io)
+{
+	int val = power | wren | (bit ? data : 0);
+
+	outb(val, io);
+	udelay(4);
+	outb(val | clk, io);
+	udelay(4);
+	outb(val, io);
+	udelay(4);
+}
+
+static void turn_power(struct maxiradio *dev, int p)
 {
 	if (p != 0) {
-		dprintk(1, "Radio powered on\n");
-		outb(power, io);
+		dprintk(dev, 1, "Radio powered on\n");
+		outb(power, dev->io);
 	} else {
-		dprintk(1, "Radio powered off\n");
-		outb(0,io);
+		dprintk(dev, 1, "Radio powered off\n");
+		outb(0, dev->io);
 	}
 }
 
-static void set_freq(__u16 io, __u32 freq)
+static void set_freq(struct maxiradio *dev, u32 freq)
 {
 	unsigned long int si;
 	int bl;
+	int io = dev->io;
 	int val = FREQ2BITS(freq);
 
 	/* TEA5757 shift register bits (see pdf) */
@@ -189,14 +163,14 @@ static void set_freq(__u16 io, __u32 freq)
 		si >>= 1;
 	}
 
-	dprintk(1, "Radio freq set to %d.%02d MHz\n",
+	dprintk(dev, 1, "Radio freq set to %d.%02d MHz\n",
 				freq / 16000,
 				freq % 16000 * 100 / 16000);
 
-	turn_power(io, 1);
+	turn_power(dev, 1);
 }
 
-static int get_stereo(__u16 io)
+static int get_stereo(u16 io)
 {
 	outb(power,io);
 	udelay(4);
@@ -204,7 +178,7 @@ static int get_stereo(__u16 io)
 	return !(inb(io) & mo_st);
 }
 
-static int get_tune(__u16 io)
+static int get_tune(u16 io)
 {
 	outb(power+clk,io);
 	udelay(4);
@@ -213,95 +187,84 @@ static int get_tune(__u16 io)
 }
 
 
-static int vidioc_querycap (struct file *file, void  *priv,
+static int vidioc_querycap(struct file *file, void  *priv,
 			    struct v4l2_capability *v)
 {
-	strlcpy(v->driver, "radio-maxiradio", sizeof (v->driver));
-	strlcpy(v->card, "Maxi Radio FM2000 radio", sizeof (v->card));
-	sprintf(v->bus_info,"ISA");
-	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	struct maxiradio *dev = video_drvdata(file);
 
+	strlcpy(v->driver, "radio-maxiradio", sizeof(v->driver));
+	strlcpy(v->card, "Maxi Radio FM2000 radio", sizeof(v->card));
+	snprintf(v->bus_info, sizeof(v->bus_info), "PCI:%s", pci_name(dev->pdev));
+	v->version = RADIO_VERSION;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
-static int vidioc_g_tuner (struct file *file, void *priv,
+static int vidioc_g_tuner(struct file *file, void *priv,
 			   struct v4l2_tuner *v)
 {
-	struct radio_device *card = video_drvdata(file);
+	struct maxiradio *dev = video_drvdata(file);
 
 	if (v->index > 0)
 		return -EINVAL;
 
-	memset(v,0,sizeof(*v));
-	strcpy(v->name, "FM");
+	mutex_lock(&dev->lock);
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
-
-	v->rangelow=FREQ_LO;
-	v->rangehigh=FREQ_HI;
-	v->rxsubchans =V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
-	v->capability=V4L2_TUNER_CAP_LOW;
-	if(get_stereo(card->io))
+	v->rangelow = FREQ_LO;
+	v->rangehigh = FREQ_HI;
+	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
+	v->capability = V4L2_TUNER_CAP_LOW;
+	if (get_stereo(dev->io))
 		v->audmode = V4L2_TUNER_MODE_STEREO;
 	else
 		v->audmode = V4L2_TUNER_MODE_MONO;
-	v->signal=0xffff*get_tune(card->io);
+	v->signal = 0xffff * get_tune(dev->io);
+	mutex_unlock(&dev->lock);
 
 	return 0;
 }
 
-static int vidioc_s_tuner (struct file *file, void *priv,
+static int vidioc_s_tuner(struct file *file, void *priv,
 			   struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
-
-	return 0;
-}
-
-static int vidioc_g_audio (struct file *file, void *priv,
-			   struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "FM");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
+	return v->index ? -EINVAL : 0;
 }
 
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 {
 	*i = 0;
-
 	return 0;
 }
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
+	return i ? -EINVAL : 0;
+}
 
+static int vidioc_g_audio(struct file *file, void *priv,
+			   struct v4l2_audio *a)
+{
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
 
-static int vidioc_s_audio (struct file *file, void *priv,
+static int vidioc_s_audio(struct file *file, void *priv,
 			   struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
-
-	return 0;
+	return a->index ? -EINVAL : 0;
 }
 
-static int vidioc_s_frequency (struct file *file, void *priv,
+static int vidioc_s_frequency(struct file *file, void *priv,
 			       struct v4l2_frequency *f)
 {
-	struct radio_device *card = video_drvdata(file);
+	struct maxiradio *dev = video_drvdata(file);
 
 	if (f->frequency < FREQ_LO || f->frequency > FREQ_HI) {
-		dprintk(1, "radio freq (%d.%02d MHz) out of range (%d-%d)\n",
+		dprintk(dev, 1, "radio freq (%d.%02d MHz) out of range (%d-%d)\n",
 					f->frequency / 16000,
 					f->frequency % 16000 * 100 / 16000,
 					FREQ_LO / 16000, FREQ_HI / 16000);
@@ -309,75 +272,79 @@ static int vidioc_s_frequency (struct file *file, void *priv,
 		return -EINVAL;
 	}
 
-	card->freq = f->frequency;
-	set_freq(card->io, card->freq);
+	mutex_lock(&dev->lock);
+	dev->freq = f->frequency;
+	set_freq(dev, dev->freq);
 	msleep(125);
+	mutex_unlock(&dev->lock);
 
 	return 0;
 }
 
-static int vidioc_g_frequency (struct file *file, void *priv,
+static int vidioc_g_frequency(struct file *file, void *priv,
 			       struct v4l2_frequency *f)
 {
-	struct radio_device *card = video_drvdata(file);
+	struct maxiradio *dev = video_drvdata(file);
 
 	f->type = V4L2_TUNER_RADIO;
-	f->frequency = card->freq;
+	f->frequency = dev->freq;
 
-	dprintk(4, "radio freq is %d.%02d MHz",
+	dprintk(dev, 4, "radio freq is %d.%02d MHz",
 				f->frequency / 16000,
 				f->frequency % 16000 * 100 / 16000);
 
 	return 0;
 }
 
-static int vidioc_queryctrl (struct file *file, void *priv,
+static int vidioc_queryctrl(struct file *file, void *priv,
 			     struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
-			return (0);
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
 	}
-
 	return -EINVAL;
 }
 
-static int vidioc_g_ctrl (struct file *file, void *priv,
-			    struct v4l2_control *ctrl)
+static int vidioc_g_ctrl(struct file *file, void *priv,
+		struct v4l2_control *ctrl)
 {
-	struct radio_device *card = video_drvdata(file);
+	struct maxiradio *dev = video_drvdata(file);
 
 	switch (ctrl->id) {
-		case V4L2_CID_AUDIO_MUTE:
-			ctrl->value=card->muted;
-			return (0);
+	case V4L2_CID_AUDIO_MUTE:
+		ctrl->value = dev->muted;
+		return 0;
 	}
 
 	return -EINVAL;
 }
 
-static int vidioc_s_ctrl (struct file *file, void *priv,
-			  struct v4l2_control *ctrl)
+static int vidioc_s_ctrl(struct file *file, void *priv,
+		struct v4l2_control *ctrl)
 {
-	struct radio_device *card = video_drvdata(file);
+	struct maxiradio *dev = video_drvdata(file);
 
 	switch (ctrl->id) {
-		case V4L2_CID_AUDIO_MUTE:
-			card->muted = ctrl->value;
-			if(card->muted)
-				turn_power(card->io, 0);
-			else
-				set_freq(card->io, card->freq);
-			return 0;
+	case V4L2_CID_AUDIO_MUTE:
+		mutex_lock(&dev->lock);
+		dev->muted = ctrl->value;
+		if (dev->muted)
+			turn_power(dev, 0);
+		else
+			set_freq(dev, dev->freq);
+		mutex_unlock(&dev->lock);
+		return 0;
 	}
 
 	return -EINVAL;
 }
 
+static const struct v4l2_file_operations maxiradio_fops = {
+	.owner		= THIS_MODULE,
+	.ioctl          = video_ioctl2,
+};
+
 static const struct v4l2_ioctl_ops maxiradio_ioctl_ops = {
 	.vidioc_querycap    = vidioc_querycap,
 	.vidioc_g_tuner     = vidioc_g_tuner,
@@ -393,60 +360,84 @@ static const struct v4l2_ioctl_ops maxiradio_ioctl_ops = {
 	.vidioc_s_ctrl      = vidioc_s_ctrl,
 };
 
-static struct video_device maxiradio_radio = {
-	.name		= "Maxi Radio FM2000 radio",
-	.fops           = &maxiradio_fops,
-	.ioctl_ops 	= &maxiradio_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
 static int __devinit maxiradio_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	if(!request_region(pci_resource_start(pdev, 0),
+	struct maxiradio *dev;
+	struct v4l2_device *v4l2_dev;
+	int retval = -ENOMEM;
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (dev == NULL) {
+		dev_err(&pdev->dev, "not enough memory\n");
+		return -ENOMEM;
+	}
+
+	v4l2_dev = &dev->v4l2_dev;
+	mutex_init(&dev->lock);
+	dev->pdev = pdev;
+	dev->muted = 1;
+	dev->freq = FREQ_LO;
+
+	strlcpy(v4l2_dev->name, "maxiradio", sizeof(v4l2_dev->name));
+
+	retval = v4l2_device_register(&pdev->dev, v4l2_dev);
+	if (retval < 0) {
+		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		goto errfr;
+	}
+
+	if (!request_region(pci_resource_start(pdev, 0),
 			   pci_resource_len(pdev, 0), "Maxi Radio FM 2000")) {
-		printk(KERN_ERR "radio-maxiradio: can't reserve I/O ports\n");
+		v4l2_err(v4l2_dev, "can't reserve I/O ports\n");
 		goto err_out;
 	}
 
 	if (pci_enable_device(pdev))
 		goto err_out_free_region;
 
-	radio_unit.io = pci_resource_start(pdev, 0);
-	mutex_init(&radio_unit.lock);
-	video_set_drvdata(&maxiradio_radio, &radio_unit);
+	dev->io = pci_resource_start(pdev, 0);
+	strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
+	dev->vdev.v4l2_dev = v4l2_dev;
+	dev->vdev.fops = &maxiradio_fops;
+	dev->vdev.ioctl_ops = &maxiradio_ioctl_ops;
+	dev->vdev.release = video_device_release_empty;
+	video_set_drvdata(&dev->vdev, dev);
 
-	if (video_register_device(&maxiradio_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
-		printk("radio-maxiradio: can't register device!");
+	if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_err(v4l2_dev, "can't register device!");
 		goto err_out_free_region;
 	}
 
-	printk(KERN_INFO "radio-maxiradio: version "
-	       DRIVER_VERSION
-	       " time "
-	       __TIME__ "  "
-	       __DATE__
-	       "\n");
+	v4l2_info(v4l2_dev, "version " DRIVER_VERSION
+			" time " __TIME__ "  " __DATE__ "\n");
 
-	printk(KERN_INFO "radio-maxiradio: found Guillemot MAXI Radio device (io = 0x%x)\n",
-	       radio_unit.io);
+	v4l2_info(v4l2_dev, "found Guillemot MAXI Radio device (io = 0x%x)\n",
+	       dev->io);
 	return 0;
 
 err_out_free_region:
 	release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
 err_out:
+	v4l2_device_unregister(v4l2_dev);
+errfr:
+	kfree(dev);
 	return -ENODEV;
 }
 
 static void __devexit maxiradio_remove_one(struct pci_dev *pdev)
 {
-	video_unregister_device(&maxiradio_radio);
+	struct v4l2_device *v4l2_dev = dev_get_drvdata(&pdev->dev);
+	struct maxiradio *dev = to_maxiradio(v4l2_dev);
+
+	video_unregister_device(&dev->vdev);
+	v4l2_device_unregister(&dev->v4l2_dev);
 	release_region(pci_resource_start(pdev, 0), pci_resource_len(pdev, 0));
 }
 
 static struct pci_device_id maxiradio_pci_tbl[] = {
 	{ PCI_VENDOR_ID_GUILLEMOT, PCI_DEVICE_ID_GUILLEMOT_MAXIRADIO,
 		PCI_ANY_ID, PCI_ANY_ID, },
-	{ 0,}
+	{ 0 }
 };
 
 MODULE_DEVICE_TABLE(pci, maxiradio_pci_tbl);
@@ -470,10 +461,3 @@ static void __exit maxiradio_radio_exit(void)
 
 module_init(maxiradio_radio_init);
 module_exit(maxiradio_radio_exit);
-
-MODULE_AUTHOR("Dimitromanolakis Apostolos, apdim@grecian.net");
-MODULE_DESCRIPTION("Radio driver for the Guillemot Maxi Radio FM2000 radio.");
-MODULE_LICENSE("GPL");
-
-module_param_named(debug,maxiradio_radio.debug, int, 0644);
-MODULE_PARM_DESC(debug,"activates debug info");
diff --git a/linux/drivers/media/radio/radio-mr800.c b/linux/drivers/media/radio/radio-mr800.c
index c04c8887e..2e8d50be8 100644
--- a/linux/drivers/media/radio/radio-mr800.c
+++ b/linux/drivers/media/radio/radio-mr800.c
@@ -43,6 +43,7 @@
  * 			Douglas Schilling Landgraf <dougsland@gmail.com> and
  * 			David Ellingsworth <david@identd.dyndns.org>
  * 			for discussion, help and support.
+ * Version 0.11:	Converted to v4l2_device.
  *
  * Many things to do:
  * 	- Correct power managment of device (suspend & resume)
@@ -57,19 +58,21 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/smp_lock.h>
 #include <linux/input.h>
 #include <linux/videodev2.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
 #include <linux/usb.h>
 #include <linux/version.h>	/* for KERNEL_VERSION MACRO */
+#include <linux/mutex.h>
 #include "compat.h"
 
 /* driver and module definitions */
 #define DRIVER_AUTHOR "Alexey Klimov <klimov.linux@gmail.com>"
 #define DRIVER_DESC "AverMedia MR 800 USB FM radio driver"
-#define DRIVER_VERSION "0.10"
-#define RADIO_VERSION KERNEL_VERSION(0, 1, 0)
+#define DRIVER_VERSION "0.11"
+#define RADIO_VERSION KERNEL_VERSION(0, 1, 1)
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
@@ -114,38 +117,6 @@ static int radio_nr = -1;
 module_param(radio_nr, int, 0);
 MODULE_PARM_DESC(radio_nr, "Radio Nr");
 
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.step	       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	},
-/* HINT: the disabled controls are only here to satify kradio and such apps */
-	{	.id		= V4L2_CID_AUDIO_VOLUME,
-		.flags		= V4L2_CTRL_FLAG_DISABLED,
-	},
-	{
-		.id		= V4L2_CID_AUDIO_BALANCE,
-		.flags		= V4L2_CTRL_FLAG_DISABLED,
-	},
-	{
-		.id		= V4L2_CID_AUDIO_BASS,
-		.flags		= V4L2_CTRL_FLAG_DISABLED,
-	},
-	{
-		.id		= V4L2_CID_AUDIO_TREBLE,
-		.flags		= V4L2_CTRL_FLAG_DISABLED,
-	},
-	{
-		.id		= V4L2_CID_AUDIO_LOUDNESS,
-		.flags		= V4L2_CTRL_FLAG_DISABLED,
-	},
-};
-
 static int usb_amradio_probe(struct usb_interface *intf,
 			     const struct usb_device_id *id);
 static void usb_amradio_disconnect(struct usb_interface *intf);
@@ -160,6 +131,7 @@ struct amradio_device {
 	/* reference to USB and video device */
 	struct usb_device *usbdev;
 	struct video_device *videodev;
+	struct v4l2_device v4l2_dev;
 
 	unsigned char *buffer;
 	struct mutex lock;	/* buffer locking */
@@ -332,6 +304,7 @@ static void usb_amradio_disconnect(struct usb_interface *intf)
 
 	usb_set_intfdata(intf, NULL);
 	video_unregister_device(radio->videodev);
+	v4l2_device_disconnect(&radio->v4l2_dev);
 }
 
 /* vidioc_querycap - query device capabilities */
@@ -466,14 +439,11 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 static int vidioc_queryctrl(struct file *file, void *priv,
 				struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
 	}
+
 	return -EINVAL;
 }
 
@@ -674,34 +644,29 @@ static const struct v4l2_ioctl_ops usb_amradio_ioctl_ops = {
 	.vidioc_s_input     = vidioc_s_input,
 };
 
-static void usb_amradio_device_release(struct video_device *videodev)
+static void usb_amradio_video_device_release(struct video_device *videodev)
 {
 	struct amradio_device *radio = video_get_drvdata(videodev);
 
 	/* we call v4l to free radio->videodev */
 	video_device_release(videodev);
 
+	v4l2_device_unregister(&radio->v4l2_dev);
+
 	/* free rest memory */
 	kfree(radio->buffer);
 	kfree(radio);
 }
 
-/* V4L2 interface */
-static struct video_device amradio_videodev_template = {
-	.name		= "AverMedia MR 800 USB FM Radio",
-	.fops		= &usb_amradio_fops,
-	.ioctl_ops 	= &usb_amradio_ioctl_ops,
-	.release	= usb_amradio_device_release,
-};
-
 /* check if the device is present and register with v4l and usb if it is */
 static int usb_amradio_probe(struct usb_interface *intf,
 				const struct usb_device_id *id)
 {
 	struct amradio_device *radio;
+	struct v4l2_device *v4l2_dev;
 	int retval;
 
-	radio = kmalloc(sizeof(struct amradio_device), GFP_KERNEL);
+	radio = kzalloc(sizeof(struct amradio_device), GFP_KERNEL);
 
 	if (!radio) {
 		dev_err(&intf->dev, "kmalloc for amradio_device failed\n");
@@ -716,6 +681,15 @@ static int usb_amradio_probe(struct usb_interface *intf,
 		return -ENOMEM;
 	}
 
+	v4l2_dev = &radio->v4l2_dev;
+	retval = v4l2_device_register(&intf->dev, v4l2_dev);
+	if (retval < 0) {
+		dev_err(&intf->dev, "couldn't register v4l2_device\n");
+		kfree(radio->buffer);
+		kfree(radio);
+		return retval;
+	}
+
 	radio->videodev = video_device_alloc();
 
 	if (!radio->videodev) {
@@ -725,8 +699,11 @@ static int usb_amradio_probe(struct usb_interface *intf,
 		return -ENOMEM;
 	}
 
-	memcpy(radio->videodev, &amradio_videodev_template,
-		sizeof(amradio_videodev_template));
+	strlcpy(radio->videodev->name, v4l2_dev->name, sizeof(radio->videodev->name));
+	radio->videodev->v4l2_dev = v4l2_dev;
+	radio->videodev->fops = &usb_amradio_fops;
+	radio->videodev->ioctl_ops = &usb_amradio_ioctl_ops;
+	radio->videodev->release = usb_amradio_video_device_release;
 
 	radio->removed = 0;
 	radio->users = 0;
@@ -737,10 +714,12 @@ static int usb_amradio_probe(struct usb_interface *intf,
 	mutex_init(&radio->lock);
 
 	video_set_drvdata(radio->videodev, radio);
+
 	retval = video_register_device(radio->videodev,	VFL_TYPE_RADIO,	radio_nr);
 	if (retval < 0) {
 		dev_err(&intf->dev, "could not register video device\n");
 		video_device_release(radio->videodev);
+		v4l2_device_unregister(v4l2_dev);
 		kfree(radio->buffer);
 		kfree(radio);
 		return -EIO;
diff --git a/linux/drivers/media/radio/radio-rtrack2.c b/linux/drivers/media/radio/radio-rtrack2.c
index fa9e243c8..6b02c69f2 100644
--- a/linux/drivers/media/radio/radio-rtrack2.c
+++ b/linux/drivers/media/radio/radio-rtrack2.c
@@ -13,35 +13,17 @@
 #include <linux/init.h>		/* Initdata			*/
 #include <linux/ioport.h>	/* request_region		*/
 #include <linux/delay.h>	/* udelay			*/
-#include <asm/io.h>		/* outb, outb_p			*/
-#include <asm/uaccess.h>	/* copy to/from user		*/
-#include "compat.h"
 #include <linux/videodev2.h>	/* kernel radio structs		*/
-#include <media/v4l2-common.h>
+#include <linux/mutex.h>
+#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
+#include <linux/io.h>		/* outb, outb_p			*/
+#include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
-#include <linux/spinlock.h>
+#include "compat.h"
 
-#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
-#define RADIO_VERSION KERNEL_VERSION(0,0,2)
-
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	},{
-		.id            = V4L2_CID_AUDIO_VOLUME,
-		.name          = "Volume",
-		.minimum       = 0,
-		.maximum       = 65535,
-		.step          = 65535,
-		.default_value = 0xff,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-	}
-};
+MODULE_AUTHOR("Ben Pfaff");
+MODULE_DESCRIPTION("A driver for the RadioTrack II radio card.");
+MODULE_LICENSE("GPL");
 
 #ifndef CONFIG_RADIO_RTRACK2_PORT
 #define CONFIG_RADIO_RTRACK2_PORT -1
@@ -49,79 +31,88 @@ static struct v4l2_queryctrl radio_qctrl[] = {
 
 static int io = CONFIG_RADIO_RTRACK2_PORT;
 static int radio_nr = -1;
-static spinlock_t lock;
 
-struct rt_device
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, "I/O address of the RadioTrack card (0x20c or 0x30c)");
+module_param(radio_nr, int, 0);
+
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
+
+struct rtrack2
 {
-	unsigned long in_use;
-	int port;
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	int io;
 	unsigned long curfreq;
 	int muted;
+	struct mutex lock;
 };
 
+static struct rtrack2 rtrack2_card;
+
 
 /* local things */
 
-static void rt_mute(struct rt_device *dev)
+static void rt_mute(struct rtrack2 *dev)
 {
-	if(dev->muted)
+	if (dev->muted)
 		return;
-	spin_lock(&lock);
-	outb(1, io);
-	spin_unlock(&lock);
+	mutex_lock(&dev->lock);
+	outb(1, dev->io);
+	mutex_unlock(&dev->lock);
 	dev->muted = 1;
 }
 
-static void rt_unmute(struct rt_device *dev)
+static void rt_unmute(struct rtrack2 *dev)
 {
 	if(dev->muted == 0)
 		return;
-	spin_lock(&lock);
-	outb(0, io);
-	spin_unlock(&lock);
+	mutex_lock(&dev->lock);
+	outb(0, dev->io);
+	mutex_unlock(&dev->lock);
 	dev->muted = 0;
 }
 
-static void zero(void)
+static void zero(struct rtrack2 *dev)
 {
-	outb_p(1, io);
-	outb_p(3, io);
-	outb_p(1, io);
+	outb_p(1, dev->io);
+	outb_p(3, dev->io);
+	outb_p(1, dev->io);
 }
 
-static void one(void)
+static void one(struct rtrack2 *dev)
 {
-	outb_p(5, io);
-	outb_p(7, io);
-	outb_p(5, io);
+	outb_p(5, dev->io);
+	outb_p(7, dev->io);
+	outb_p(5, dev->io);
 }
 
-static int rt_setfreq(struct rt_device *dev, unsigned long freq)
+static int rt_setfreq(struct rtrack2 *dev, unsigned long freq)
 {
 	int i;
 
+	mutex_lock(&dev->lock);
+	dev->curfreq = freq;
 	freq = freq / 200 + 856;
 
-	spin_lock(&lock);
-
-	outb_p(0xc8, io);
-	outb_p(0xc9, io);
-	outb_p(0xc9, io);
+	outb_p(0xc8, dev->io);
+	outb_p(0xc9, dev->io);
+	outb_p(0xc9, dev->io);
 
 	for (i = 0; i < 10; i++)
-		zero ();
+		zero(dev);
 
 	for (i = 14; i >= 0; i--)
 		if (freq & (1 << i))
-			one ();
+			one(dev);
 		else
-			zero ();
+			zero(dev);
 
-	outb_p(0xc8, io);
+	outb_p(0xc8, dev->io);
 	if (!dev->muted)
-		outb_p(0, io);
+		outb_p(0, dev->io);
 
-	spin_unlock(&lock);
+	mutex_unlock(&dev->lock);
 	return 0;
 }
 
@@ -130,61 +121,61 @@ static int vidioc_querycap(struct file *file, void *priv,
 {
 	strlcpy(v->driver, "radio-rtrack2", sizeof(v->driver));
 	strlcpy(v->card, "RadioTrack II", sizeof(v->card));
-	sprintf(v->bus_info, "ISA");
+	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
 	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv,
 				struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
-
-	return 0;
+	return v->index ? -EINVAL : 0;
 }
 
-static int rt_getsigstr(struct rt_device *dev)
+static int rt_getsigstr(struct rtrack2 *dev)
 {
-	if (inb(io) & 2)	/* bit set = no signal present	*/
-		return 0;
-	return 1;		/* signal present		*/
+	int sig = 1;
+
+	mutex_lock(&dev->lock);
+	if (inb(dev->io) & 2)	/* bit set = no signal present	*/
+		sig = 0;
+	mutex_unlock(&dev->lock);
+	return sig;
 }
 
 static int vidioc_g_tuner(struct file *file, void *priv,
 				struct v4l2_tuner *v)
 {
-	struct rt_device *rt = video_drvdata(file);
+	struct rtrack2 *rt = video_drvdata(file);
 
 	if (v->index > 0)
 		return -EINVAL;
 
-	strcpy(v->name, "FM");
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
-	v->rangelow = (88*16000);
-	v->rangehigh = (108*16000);
+	v->rangelow = 88 * 16000;
+	v->rangehigh = 108 * 16000;
 	v->rxsubchans = V4L2_TUNER_SUB_MONO;
 	v->capability = V4L2_TUNER_CAP_LOW;
 	v->audmode = V4L2_TUNER_MODE_MONO;
-	v->signal = 0xFFFF*rt_getsigstr(rt);
+	v->signal = 0xFFFF * rt_getsigstr(rt);
 	return 0;
 }
 
 static int vidioc_s_frequency(struct file *file, void *priv,
 				struct v4l2_frequency *f)
 {
-	struct rt_device *rt = video_drvdata(file);
+	struct rtrack2 *rt = video_drvdata(file);
 
-	rt->curfreq = f->frequency;
-	rt_setfreq(rt, rt->curfreq);
+	rt_setfreq(rt, f->frequency);
 	return 0;
 }
 
 static int vidioc_g_frequency(struct file *file, void *priv,
 				struct v4l2_frequency *f)
 {
-	struct rt_device *rt = video_drvdata(file);
+	struct rtrack2 *rt = video_drvdata(file);
 
 	f->type = V4L2_TUNER_RADIO;
 	f->frequency = rt->curfreq;
@@ -194,14 +185,11 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 static int vidioc_queryctrl(struct file *file, void *priv,
 				struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]),
-						sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 65535, 65535);
 	}
 	return -EINVAL;
 }
@@ -209,7 +197,7 @@ static int vidioc_queryctrl(struct file *file, void *priv,
 static int vidioc_g_ctrl(struct file *file, void *priv,
 				struct v4l2_control *ctrl)
 {
-	struct rt_device *rt = video_drvdata(file);
+	struct rtrack2 *rt = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
@@ -228,7 +216,7 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 static int vidioc_s_ctrl(struct file *file, void *priv,
 				struct v4l2_control *ctrl)
 {
-	struct rt_device *rt = video_drvdata(file);
+	struct rtrack2 *rt = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
@@ -247,17 +235,6 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
 	return -EINVAL;
 }
 
-static int vidioc_g_audio(struct file *file, void *priv,
-				struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
-}
-
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 {
 	*i = 0;
@@ -266,36 +243,26 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
-	return 0;
+	return i ? -EINVAL : 0;
 }
 
-static int vidioc_s_audio(struct file *file, void *priv,
+static int vidioc_g_audio(struct file *file, void *priv,
 				struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
-static struct rt_device rtrack2_unit;
-
-static int rtrack2_exclusive_open(struct file *file)
+static int vidioc_s_audio(struct file *file, void *priv,
+				struct v4l2_audio *a)
 {
-	return test_and_set_bit(0, &rtrack2_unit.in_use) ? -EBUSY : 0;
-}
-
-static int rtrack2_exclusive_release(struct file *file)
-{
-	clear_bit(0, &rtrack2_unit.in_use);
-	return 0;
+	return a->index ? -EINVAL : 0;
 }
 
 static const struct v4l2_file_operations rtrack2_fops = {
 	.owner		= THIS_MODULE,
-	.open           = rtrack2_exclusive_open,
-	.release        = rtrack2_exclusive_release,
 	.ioctl		= video_ioctl2,
 };
 
@@ -314,62 +281,61 @@ static const struct v4l2_ioctl_ops rtrack2_ioctl_ops = {
 	.vidioc_s_input     = vidioc_s_input,
 };
 
-static struct video_device rtrack2_radio = {
-	.name		= "RadioTrack II radio",
-	.fops           = &rtrack2_fops,
-	.ioctl_ops 	= &rtrack2_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
 static int __init rtrack2_init(void)
 {
-	if(io==-1)
-	{
-		printk(KERN_ERR "You must set an I/O address with io=0x20c or io=0x30c\n");
+	struct rtrack2 *dev = &rtrack2_card;
+	struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
+	int res;
+
+	strlcpy(v4l2_dev->name, "rtrack2", sizeof(v4l2_dev->name));
+	dev->io = io;
+	if (dev->io == -1) {
+		v4l2_err(v4l2_dev, "You must set an I/O address with io=0x20c or io=0x30c\n");
 		return -EINVAL;
 	}
-	if (!request_region(io, 4, "rtrack2"))
-	{
-		printk(KERN_ERR "rtrack2: port 0x%x already in use\n", io);
+	if (!request_region(dev->io, 4, "rtrack2")) {
+		v4l2_err(v4l2_dev, "port 0x%x already in use\n", dev->io);
 		return -EBUSY;
 	}
 
-	video_set_drvdata(&rtrack2_radio, &rtrack2_unit);
+	res = v4l2_device_register(NULL, v4l2_dev);
+	if (res < 0) {
+		release_region(dev->io, 4);
+		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		return res;
+	}
 
-	spin_lock_init(&lock);
-	if (video_register_device(&rtrack2_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
-		release_region(io, 4);
+	strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
+	dev->vdev.v4l2_dev = v4l2_dev;
+	dev->vdev.fops = &rtrack2_fops;
+	dev->vdev.ioctl_ops = &rtrack2_ioctl_ops;
+	dev->vdev.release = video_device_release_empty;
+	video_set_drvdata(&dev->vdev, dev);
+
+	mutex_init(&dev->lock);
+	if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(v4l2_dev);
+		release_region(dev->io, 4);
 		return -EINVAL;
 	}
 
-	printk(KERN_INFO "AIMSlab Radiotrack II card driver.\n");
+	v4l2_info(v4l2_dev, "AIMSlab Radiotrack II card driver.\n");
 
 	/* mute card - prevents noisy bootups */
-	outb(1, io);
-	rtrack2_unit.muted = 1;
+	outb(1, dev->io);
+	dev->muted = 1;
 
 	return 0;
 }
 
-MODULE_AUTHOR("Ben Pfaff");
-MODULE_DESCRIPTION("A driver for the RadioTrack II radio card.");
-MODULE_LICENSE("GPL");
-
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the RadioTrack card (0x20c or 0x30c)");
-module_param(radio_nr, int, 0);
-
-static void __exit rtrack2_cleanup_module(void)
+static void __exit rtrack2_exit(void)
 {
-	video_unregister_device(&rtrack2_radio);
-	release_region(io,4);
+	struct rtrack2 *dev = &rtrack2_card;
+
+	video_unregister_device(&dev->vdev);
+	v4l2_device_unregister(&dev->v4l2_dev);
+	release_region(dev->io, 4);
 }
 
 module_init(rtrack2_init);
-module_exit(rtrack2_cleanup_module);
-
-/*
-  Local variables:
-  compile-command: "mmake"
-  End:
-*/
+module_exit(rtrack2_exit);
diff --git a/linux/drivers/media/radio/radio-sf16fmi.c b/linux/drivers/media/radio/radio-sf16fmi.c
index 3cce0afb4..891617ee1 100644
--- a/linux/drivers/media/radio/radio-sf16fmi.c
+++ b/linux/drivers/media/radio/radio-sf16fmi.c
@@ -22,114 +22,109 @@
 #include <linux/init.h>		/* Initdata			*/
 #include <linux/ioport.h>	/* request_region		*/
 #include <linux/delay.h>	/* udelay			*/
-#include "compat.h"
-#include <linux/videodev2.h>	/* kernel radio structs		*/
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
 #include <linux/isapnp.h>
-#include <asm/io.h>		/* outb, outb_p			*/
-#include <asm/uaccess.h>	/* copy to/from user		*/
 #include <linux/mutex.h>
+#include <linux/videodev2.h>	/* kernel radio structs		*/
+#include <linux/io.h>		/* outb, outb_p			*/
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include "compat.h"
 
-#define RADIO_VERSION KERNEL_VERSION(0,0,2)
+MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
+MODULE_DESCRIPTION("A driver for the SF16MI radio.");
+MODULE_LICENSE("GPL");
 
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	}
-};
+static int io = -1;
+static int radio_nr = -1;
+
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, "I/O address of the SF16MI card (0x284 or 0x384)");
+module_param(radio_nr, int, 0);
 
-struct fmi_device
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
+
+struct fmi
 {
-	unsigned long in_use;
-	int port;
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	int io;
 	int curvol; /* 1 or 0 */
 	unsigned long curfreq; /* freq in kHz */
-	__u32 flags;
+	struct mutex lock;
 };
 
-static int io = -1;
-static int radio_nr = -1;
-static struct pnp_dev *dev = NULL;
-static struct mutex lock;
+static struct fmi fmi_card;
+static struct pnp_dev *dev;
 
 /* freq is in 1/16 kHz to internal number, hw precision is 50 kHz */
-/* It is only useful to give freq in intervall of 800 (=0.05Mhz),
+/* It is only useful to give freq in interval of 800 (=0.05Mhz),
  * other bits will be truncated, e.g 92.7400016 -> 92.7, but
  * 92.7400017 -> 92.75
  */
-#define RSF16_ENCODE(x)	((x)/800+214)
-#define RSF16_MINFREQ 87*16000
-#define RSF16_MAXFREQ 108*16000
+#define RSF16_ENCODE(x)	((x) / 800 + 214)
+#define RSF16_MINFREQ (87 * 16000)
+#define RSF16_MAXFREQ (108 * 16000)
 
-static void outbits(int bits, unsigned int data, int port)
+static void outbits(int bits, unsigned int data, int io)
 {
-	while(bits--) {
-		if(data & 1) {
-			outb(5, port);
+	while (bits--) {
+		if (data & 1) {
+			outb(5, io);
 			udelay(6);
-			outb(7, port);
+			outb(7, io);
 			udelay(6);
 		} else {
-			outb(1, port);
+			outb(1, io);
 			udelay(6);
-			outb(3, port);
+			outb(3, io);
 			udelay(6);
 		}
-		data>>=1;
+		data >>= 1;
 	}
 }
 
-static inline void fmi_mute(int port)
+static inline void fmi_mute(struct fmi *fmi)
 {
-	mutex_lock(&lock);
-	outb(0x00, port);
-	mutex_unlock(&lock);
+	mutex_lock(&fmi->lock);
+	outb(0x00, fmi->io);
+	mutex_unlock(&fmi->lock);
 }
 
-static inline void fmi_unmute(int port)
+static inline void fmi_unmute(struct fmi *fmi)
 {
-	mutex_lock(&lock);
-	outb(0x08, port);
-	mutex_unlock(&lock);
+	mutex_lock(&fmi->lock);
+	outb(0x08, fmi->io);
+	mutex_unlock(&fmi->lock);
 }
 
-static inline int fmi_setfreq(struct fmi_device *dev)
+static inline int fmi_setfreq(struct fmi *fmi, unsigned long freq)
 {
-	int myport = dev->port;
-	unsigned long freq = dev->curfreq;
+	mutex_lock(&fmi->lock);
+	fmi->curfreq = freq;
 
-	mutex_lock(&lock);
-
-	outbits(16, RSF16_ENCODE(freq), myport);
-	outbits(8, 0xC0, myport);
+	outbits(16, RSF16_ENCODE(freq), fmi->io);
+	outbits(8, 0xC0, fmi->io);
 	msleep(143);		/* was schedule_timeout(HZ/7) */
-	mutex_unlock(&lock);
-	if (dev->curvol) fmi_unmute(myport);
+	mutex_unlock(&fmi->lock);
+	if (fmi->curvol)
+		fmi_unmute(fmi);
 	return 0;
 }
 
-static inline int fmi_getsigstr(struct fmi_device *dev)
+static inline int fmi_getsigstr(struct fmi *fmi)
 {
 	int val;
 	int res;
-	int myport = dev->port;
-
 
-	mutex_lock(&lock);
-	val = dev->curvol ? 0x08 : 0x00;	/* unmute/mute */
-	outb(val, myport);
-	outb(val | 0x10, myport);
+	mutex_lock(&fmi->lock);
+	val = fmi->curvol ? 0x08 : 0x00;	/* unmute/mute */
+	outb(val, fmi->io);
+	outb(val | 0x10, fmi->io);
 	msleep(143); 		/* was schedule_timeout(HZ/7) */
-	res = (int)inb(myport+1);
-	outb(val, myport);
+	res = (int)inb(fmi->io + 1);
+	outb(val, fmi->io);
 
-	mutex_unlock(&lock);
+	mutex_unlock(&fmi->lock);
 	return (res & 2) ? 0 : 0xFFFF;
 }
 
@@ -138,28 +133,26 @@ static int vidioc_querycap(struct file *file, void  *priv,
 {
 	strlcpy(v->driver, "radio-sf16fmi", sizeof(v->driver));
 	strlcpy(v->card, "SF16-FMx radio", sizeof(v->card));
-	sprintf(v->bus_info, "ISA");
+	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
 	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
 static int vidioc_g_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	int mult;
-	struct fmi_device *fmi = video_drvdata(file);
+	struct fmi *fmi = video_drvdata(file);
 
 	if (v->index > 0)
 		return -EINVAL;
 
-	strcpy(v->name, "FM");
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
-	mult = (fmi->flags & V4L2_TUNER_CAP_LOW) ? 1 : 1000;
-	v->rangelow = RSF16_MINFREQ/mult;
-	v->rangehigh = RSF16_MAXFREQ/mult;
-	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_MODE_STEREO;
-	v->capability = fmi->flags&V4L2_TUNER_CAP_LOW;
+	v->rangelow = RSF16_MINFREQ;
+	v->rangehigh = RSF16_MAXFREQ;
+	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
+	v->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW;
 	v->audmode = V4L2_TUNER_MODE_STEREO;
 	v->signal = fmi_getsigstr(fmi);
 	return 0;
@@ -168,51 +161,39 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 static int vidioc_s_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
-	return 0;
+	return v->index ? -EINVAL : 0;
 }
 
 static int vidioc_s_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct fmi_device *fmi = video_drvdata(file);
+	struct fmi *fmi = video_drvdata(file);
 
-	if (!(fmi->flags & V4L2_TUNER_CAP_LOW))
-		f->frequency *= 1000;
 	if (f->frequency < RSF16_MINFREQ ||
-			f->frequency > RSF16_MAXFREQ )
+			f->frequency > RSF16_MAXFREQ)
 		return -EINVAL;
-	/*rounding in steps of 800 to match th freq
-	that will be used */
-	fmi->curfreq = (f->frequency/800)*800;
-	fmi_setfreq(fmi);
+	/* rounding in steps of 800 to match the freq
+	   that will be used */
+	fmi_setfreq(fmi, (f->frequency / 800) * 800);
 	return 0;
 }
 
 static int vidioc_g_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct fmi_device *fmi = video_drvdata(file);
+	struct fmi *fmi = video_drvdata(file);
 
 	f->type = V4L2_TUNER_RADIO;
 	f->frequency = fmi->curfreq;
-	if (!(fmi->flags & V4L2_TUNER_CAP_LOW))
-		f->frequency /= 1000;
 	return 0;
 }
 
 static int vidioc_queryctrl(struct file *file, void *priv,
 					struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]),
-						sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
 	}
 	return -EINVAL;
 }
@@ -220,7 +201,7 @@ static int vidioc_queryctrl(struct file *file, void *priv,
 static int vidioc_g_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct fmi_device *fmi = video_drvdata(file);
+	struct fmi *fmi = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
@@ -233,31 +214,20 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 static int vidioc_s_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct fmi_device *fmi = video_drvdata(file);
+	struct fmi *fmi = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
 		if (ctrl->value)
-			fmi_mute(fmi->port);
+			fmi_mute(fmi);
 		else
-			fmi_unmute(fmi->port);
+			fmi_unmute(fmi);
 		fmi->curvol = ctrl->value;
 		return 0;
 	}
 	return -EINVAL;
 }
 
-static int vidioc_g_audio(struct file *file, void *priv,
-					struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
-}
-
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 {
 	*i = 0;
@@ -266,36 +236,26 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
-	return 0;
+	return i ? -EINVAL : 0;
 }
 
-static int vidioc_s_audio(struct file *file, void *priv,
+static int vidioc_g_audio(struct file *file, void *priv,
 					struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
-static struct fmi_device fmi_unit;
-
-static int fmi_exclusive_open(struct file *file)
-{
-	return test_and_set_bit(0, &fmi_unit.in_use) ? -EBUSY : 0;
-}
-
-static int fmi_exclusive_release(struct file *file)
+static int vidioc_s_audio(struct file *file, void *priv,
+					struct v4l2_audio *a)
 {
-	clear_bit(0, &fmi_unit.in_use);
-	return 0;
+	return a->index ? -EINVAL : 0;
 }
 
 static const struct v4l2_file_operations fmi_fops = {
 	.owner		= THIS_MODULE,
-	.open           = fmi_exclusive_open,
-	.release        = fmi_exclusive_release,
 	.ioctl		= video_ioctl2,
 };
 
@@ -314,13 +274,6 @@ static const struct v4l2_ioctl_ops fmi_ioctl_ops = {
 	.vidioc_s_ctrl      = vidioc_s_ctrl,
 };
 
-static struct video_device fmi_radio = {
-	.name		= "SF16FMx radio",
-	.fops           = &fmi_fops,
-	.ioctl_ops 	= &fmi_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
 /* ladis: this is my card. does any other types exist? */
 static struct isapnp_device_id id_table[] __devinitdata = {
 	{	ISAPNP_ANY_ID, ISAPNP_ANY_ID,
@@ -345,7 +298,7 @@ static int __init isapnp_fmi_probe(void)
 	if (pnp_device_attach(dev) < 0)
 		return -EAGAIN;
 	if (pnp_activate_dev(dev) < 0) {
-		printk ("radio-sf16fmi: PnP configure failed (out of resources?)\n");
+		printk(KERN_ERR "radio-sf16fmi: PnP configure failed (out of resources?)\n");
 		pnp_device_detach(dev);
 		return -ENOMEM;
 	}
@@ -355,59 +308,71 @@ static int __init isapnp_fmi_probe(void)
 	}
 
 	i = pnp_port_start(dev, 0);
-	printk ("radio-sf16fmi: PnP reports card at %#x\n", i);
+	printk(KERN_INFO "radio-sf16fmi: PnP reports card at %#x\n", i);
 
 	return i;
 }
 
 static int __init fmi_init(void)
 {
+	struct fmi *fmi = &fmi_card;
+	struct v4l2_device *v4l2_dev = &fmi->v4l2_dev;
+	int res;
+
 	if (io < 0)
 		io = isapnp_fmi_probe();
-	if (io < 0) {
-		printk(KERN_ERR "radio-sf16fmi: No PnP card found.\n");
-		return io;
+	strlcpy(v4l2_dev->name, "sf16fmi", sizeof(v4l2_dev->name));
+	fmi->io = io;
+	if (fmi->io < 0) {
+		v4l2_err(v4l2_dev, "No PnP card found.\n");
+		return fmi->io;
 	}
 	if (!request_region(io, 2, "radio-sf16fmi")) {
-		printk(KERN_ERR "radio-sf16fmi: port 0x%x already in use\n", io);
+		v4l2_err(v4l2_dev, "port 0x%x already in use\n", fmi->io);
 		pnp_device_detach(dev);
 		return -EBUSY;
 	}
 
-	fmi_unit.port = io;
-	fmi_unit.curvol = 0;
-	fmi_unit.curfreq = 0;
-	fmi_unit.flags = V4L2_TUNER_CAP_LOW;
-	video_set_drvdata(&fmi_radio, &fmi_unit);
+	res = v4l2_device_register(NULL, v4l2_dev);
+	if (res < 0) {
+		release_region(fmi->io, 2);
+		pnp_device_detach(dev);
+		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		return res;
+	}
+
+	strlcpy(fmi->vdev.name, v4l2_dev->name, sizeof(fmi->vdev.name));
+	fmi->vdev.v4l2_dev = v4l2_dev;
+	fmi->vdev.fops = &fmi_fops;
+	fmi->vdev.ioctl_ops = &fmi_ioctl_ops;
+	fmi->vdev.release = video_device_release_empty;
+	video_set_drvdata(&fmi->vdev, fmi);
 
-	mutex_init(&lock);
+	mutex_init(&fmi->lock);
 
-	if (video_register_device(&fmi_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
-		release_region(io, 2);
+	if (video_register_device(&fmi->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(v4l2_dev);
+		release_region(fmi->io, 2);
+		pnp_device_detach(dev);
 		return -EINVAL;
 	}
 
-	printk(KERN_INFO "SF16FMx radio card driver at 0x%x\n", io);
+	v4l2_info(v4l2_dev, "card driver at 0x%x\n", fmi->io);
 	/* mute card - prevents noisy bootups */
-	fmi_mute(io);
+	fmi_mute(fmi);
 	return 0;
 }
 
-MODULE_AUTHOR("Petr Vandrovec, vandrove@vc.cvut.cz and M. Kirkwood");
-MODULE_DESCRIPTION("A driver for the SF16MI radio.");
-MODULE_LICENSE("GPL");
-
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the SF16MI card (0x284 or 0x384)");
-module_param(radio_nr, int, 0);
-
-static void __exit fmi_cleanup_module(void)
+static void __exit fmi_exit(void)
 {
-	video_unregister_device(&fmi_radio);
-	release_region(io, 2);
+	struct fmi *fmi = &fmi_card;
+
+	video_unregister_device(&fmi->vdev);
+	v4l2_device_unregister(&fmi->v4l2_dev);
+	release_region(fmi->io, 2);
 	if (dev)
 		pnp_device_detach(dev);
 }
 
 module_init(fmi_init);
-module_exit(fmi_cleanup_module);
+module_exit(fmi_exit);
diff --git a/linux/drivers/media/radio/radio-sf16fmr2.c b/linux/drivers/media/radio/radio-sf16fmr2.c
index 69a28d1ff..df8c10a50 100644
--- a/linux/drivers/media/radio/radio-sf16fmr2.c
+++ b/linux/drivers/media/radio/radio-sf16fmr2.c
@@ -18,41 +18,29 @@
 #include <linux/init.h>		/* Initdata			*/
 #include <linux/ioport.h>	/* request_region		*/
 #include <linux/delay.h>	/* udelay			*/
-#include <asm/io.h>		/* outb, outb_p			*/
-#include <asm/uaccess.h>	/* copy to/from user		*/
-#include "compat.h"
 #include <linux/videodev2.h>	/* kernel radio structs		*/
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
 #include <linux/mutex.h>
+#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
+#include <linux/io.h>		/* outb, outb_p			*/
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include "compat.h"
 
-static struct mutex lock;
+MODULE_AUTHOR("Ziglio Frediano, freddy77@angelfire.com");
+MODULE_DESCRIPTION("A driver for the SF16FMR2 radio.");
+MODULE_LICENSE("GPL");
+
+static int io = 0x384;
+static int radio_nr = -1;
+
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, "I/O address of the SF16FMR2 card (should be 0x384, if do not work try 0x284)");
+module_param(radio_nr, int, 0);
 
-#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
 #define RADIO_VERSION KERNEL_VERSION(0,0,2)
 
 #define AUD_VOL_INDEX 1
 
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	},
-	[AUD_VOL_INDEX] = {
-		.id            = V4L2_CID_AUDIO_VOLUME,
-		.name          = "Volume",
-		.minimum       = 0,
-		.maximum       = 15,
-		.step          = 1,
-		.default_value = 0,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-	}
-};
-
 #undef DEBUG
 //#define DEBUG 1
 
@@ -63,156 +51,159 @@ static struct v4l2_queryctrl radio_qctrl[] = {
 #endif
 
 /* this should be static vars for module size */
-struct fmr2_device
+struct fmr2
 {
-	unsigned long in_use;
-	int port;
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	struct mutex lock;
+	int io;
 	int curvol; /* 0-15 */
 	int mute;
 	int stereo; /* card is producing stereo audio */
 	unsigned long curfreq; /* freq in kHz */
 	int card_type;
-	__u32 flags;
 };
 
-static int io = 0x384;
-static int radio_nr = -1;
+static struct fmr2 fmr2_card;
 
 /* hw precision is 12.5 kHz
- * It is only useful to give freq in intervall of 200 (=0.0125Mhz),
+ * It is only useful to give freq in interval of 200 (=0.0125Mhz),
  * other bits will be truncated
  */
-#define RSF16_ENCODE(x)	((x)/200+856)
-#define RSF16_MINFREQ 87*16000
-#define RSF16_MAXFREQ 108*16000
+#define RSF16_ENCODE(x)	((x) / 200 + 856)
+#define RSF16_MINFREQ (87 * 16000)
+#define RSF16_MAXFREQ (108 * 16000)
 
-static inline void wait(int n,int port)
+static inline void wait(int n, int io)
 {
-	for (;n;--n) inb(port);
+	for (; n; --n)
+		inb(io);
 }
 
-static void outbits(int bits, unsigned int data, int nWait, int port)
+static void outbits(int bits, unsigned int data, int nWait, int io)
 {
 	int bit;
-	for(;--bits>=0;) {
-		bit = (data>>bits) & 1;
-		outb(bit,port);
-		wait(nWait,port);
-		outb(bit|2,port);
-		wait(nWait,port);
-		outb(bit,port);
-		wait(nWait,port);
+
+	for (; --bits >= 0;) {
+		bit = (data >> bits) & 1;
+		outb(bit, io);
+		wait(nWait, io);
+		outb(bit | 2, io);
+		wait(nWait, io);
+		outb(bit, io);
+		wait(nWait, io);
 	}
 }
 
-static inline void fmr2_mute(int port)
+static inline void fmr2_mute(int io)
 {
-	outb(0x00, port);
-	wait(4,port);
+	outb(0x00, io);
+	wait(4, io);
 }
 
-static inline void fmr2_unmute(int port)
+static inline void fmr2_unmute(int io)
 {
-	outb(0x04, port);
-	wait(4,port);
+	outb(0x04, io);
+	wait(4, io);
 }
 
-static inline int fmr2_stereo_mode(int port)
+static inline int fmr2_stereo_mode(int io)
 {
-	int n = inb(port);
-	outb(6,port);
-	inb(port);
-	n = ((n>>3)&1)^1;
+	int n = inb(io);
+
+	outb(6, io);
+	inb(io);
+	n = ((n >> 3) & 1) ^ 1;
 	debug_print((KERN_DEBUG "stereo: %d\n", n));
 	return n;
 }
 
-static int fmr2_product_info(struct fmr2_device *dev)
+static int fmr2_product_info(struct fmr2 *dev)
 {
-	int n = inb(dev->port);
+	int n = inb(dev->io);
+
 	n &= 0xC1;
-	if (n == 0)
-	{
+	if (n == 0) {
 		/* this should support volume set */
 		dev->card_type = 12;
 		return 0;
 	}
 	/* not volume (mine is 11) */
-	dev->card_type = (n==128)?11:0;
+	dev->card_type = (n == 128) ? 11 : 0;
 	return n;
 }
 
-static inline int fmr2_getsigstr(struct fmr2_device *dev)
+static inline int fmr2_getsigstr(struct fmr2 *dev)
 {
-	/* !!! work only if scanning freq */
-	int port = dev->port, res = 0xffff;
-	outb(5,port);
-	wait(4,port);
-	if (!(inb(port)&1)) res = 0;
+	/* !!! works only if scanning freq */
+	int res = 0xffff;
+
+	outb(5, dev->io);
+	wait(4, dev->io);
+	if (!(inb(dev->io) & 1))
+		res = 0;
 	debug_print((KERN_DEBUG "signal: %d\n", res));
 	return res;
 }
 
 /* set frequency and unmute card */
-static int fmr2_setfreq(struct fmr2_device *dev)
+static int fmr2_setfreq(struct fmr2 *dev)
 {
-	int port = dev->port;
 	unsigned long freq = dev->curfreq;
 
-	fmr2_mute(port);
+	fmr2_mute(dev->io);
 
 	/* 0x42 for mono output
 	 * 0x102 forward scanning
 	 * 0x182 scansione avanti
 	 */
-	outbits(9,0x2,3,port);
-	outbits(16,RSF16_ENCODE(freq),2,port);
+	outbits(9, 0x2, 3, dev->io);
+	outbits(16, RSF16_ENCODE(freq), 2, dev->io);
 
-	fmr2_unmute(port);
+	fmr2_unmute(dev->io);
 
 	/* wait 0.11 sec */
 	msleep(110);
 
 	/* NOTE if mute this stop radio
 	   you must set freq on unmute */
-	dev->stereo = fmr2_stereo_mode(port);
+	dev->stereo = fmr2_stereo_mode(dev->io);
 	return 0;
 }
 
 /* !!! not tested, in my card this does't work !!! */
-static int fmr2_setvolume(struct fmr2_device *dev)
+static int fmr2_setvolume(struct fmr2 *dev)
 {
 	int vol[16] = { 0x021, 0x084, 0x090, 0x104,
 			0x110, 0x204, 0x210, 0x402,
 			0x404, 0x408, 0x410, 0x801,
 			0x802, 0x804, 0x808, 0x810 };
-	int i, a, port = dev->port;
+	int i, a;
 	int n = vol[dev->curvol & 0x0f];
 
 	if (dev->card_type != 11)
 		return 1;
 
 	for (i = 12; --i >= 0; ) {
-		a = ((n >> i) & 1) << 6; /* if (a=0) a= 0; else a= 0x40; */
-		outb(a | 4, port);
-		wait(4, port);
-		outb(a | 0x24, port);
-		wait(4, port);
-		outb(a | 4, port);
-		wait(4, port);
+		a = ((n >> i) & 1) << 6; /* if (a==0) a = 0; else a = 0x40; */
+		outb(a | 4, dev->io);
+		wait(4, dev->io);
+		outb(a | 0x24, dev->io);
+		wait(4, dev->io);
+		outb(a | 4, dev->io);
+		wait(4, dev->io);
 	}
 	for (i = 6; --i >= 0; ) {
 		a = ((0x18 >> i) & 1) << 6;
-		outb(a | 4, port);
-		wait(4,port);
-		outb(a | 0x24, port);
-		wait(4,port);
-		outb(a|4, port);
-		wait(4,port);
+		outb(a | 4, dev->io);
+		wait(4, dev->io);
+		outb(a | 0x24, dev->io);
+		wait(4, dev->io);
+		outb(a | 4, dev->io);
+		wait(4, dev->io);
 	}
-	wait(4, port);
-	outb(0x14, port);
-
+	wait(4, dev->io);
+	outb(0x14, dev->io);
 	return 0;
 }
 
@@ -221,64 +212,58 @@ static int vidioc_querycap(struct file *file, void  *priv,
 {
 	strlcpy(v->driver, "radio-sf16fmr2", sizeof(v->driver));
 	strlcpy(v->card, "SF16-FMR2 radio", sizeof(v->card));
-	sprintf(v->bus_info, "ISA");
+	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
 	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
 static int vidioc_g_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	int mult;
-	struct fmr2_device *fmr2 = video_drvdata(file);
+	struct fmr2 *fmr2 = video_drvdata(file);
 
 	if (v->index > 0)
 		return -EINVAL;
 
-	strcpy(v->name, "FM");
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
 
-	mult = (fmr2->flags & V4L2_TUNER_CAP_LOW) ? 1 : 1000;
-	v->rangelow = RSF16_MINFREQ/mult;
-	v->rangehigh = RSF16_MAXFREQ/mult;
-	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_MODE_STEREO;
-	v->capability = fmr2->flags&V4L2_TUNER_CAP_LOW;
-	v->audmode = fmr2->stereo ? V4L2_TUNER_MODE_STEREO:
-				V4L2_TUNER_MODE_MONO;
-	mutex_lock(&lock);
+	v->rangelow = RSF16_MINFREQ;
+	v->rangehigh = RSF16_MAXFREQ;
+	v->rxsubchans = fmr2->stereo ? V4L2_TUNER_SUB_STEREO :
+					V4L2_TUNER_SUB_MONO;
+	v->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW;
+	v->audmode = V4L2_TUNER_MODE_STEREO;
+	mutex_lock(&fmr2->lock);
 	v->signal = fmr2_getsigstr(fmr2);
-	mutex_unlock(&lock);
+	mutex_unlock(&fmr2->lock);
 	return 0;
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
-	return 0;
+	return v->index ? -EINVAL : 0;
 }
 
 static int vidioc_s_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct fmr2_device *fmr2 = video_drvdata(file);
+	struct fmr2 *fmr2 = video_drvdata(file);
 
-	if (!(fmr2->flags & V4L2_TUNER_CAP_LOW))
-		f->frequency *= 1000;
 	if (f->frequency < RSF16_MINFREQ ||
-			f->frequency > RSF16_MAXFREQ )
+			f->frequency > RSF16_MAXFREQ)
 		return -EINVAL;
-	/*rounding in steps of 200 to match th freq
-	that will be used */
-	fmr2->curfreq = (f->frequency/200)*200;
+	/* rounding in steps of 200 to match the freq
+	   that will be used */
+	fmr2->curfreq = (f->frequency / 200) * 200;
 
 	/* set card freq (if not muted) */
 	if (fmr2->curvol && !fmr2->mute) {
-		mutex_lock(&lock);
+		mutex_lock(&fmr2->lock);
 		fmr2_setfreq(fmr2);
-		mutex_unlock(&lock);
+		mutex_unlock(&fmr2->lock);
 	}
 	return 0;
 }
@@ -286,25 +271,26 @@ static int vidioc_s_frequency(struct file *file, void *priv,
 static int vidioc_g_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct fmr2_device *fmr2 = video_drvdata(file);
+	struct fmr2 *fmr2 = video_drvdata(file);
 
 	f->type = V4L2_TUNER_RADIO;
 	f->frequency = fmr2->curfreq;
-	if (!(fmr2->flags & V4L2_TUNER_CAP_LOW))
-		f->frequency /= 1000;
 	return 0;
 }
 
 static int vidioc_queryctrl(struct file *file, void *priv,
 					struct v4l2_queryctrl *qc)
 {
-	int i;
+	struct fmr2 *fmr2 = video_drvdata(file);
 
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &radio_qctrl[i], sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+	case V4L2_CID_AUDIO_VOLUME:
+		/* Only card_type == 11 implements volume */
+		if (fmr2->card_type == 11)
+			return v4l2_ctrl_query_fill(qc, 0, 15, 1, 0);
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 0);
 	}
 	return -EINVAL;
 }
@@ -312,7 +298,7 @@ static int vidioc_queryctrl(struct file *file, void *priv,
 static int vidioc_g_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct fmr2_device *fmr2 = video_drvdata(file);
+	struct fmr2 *fmr2 = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
@@ -328,18 +314,14 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 static int vidioc_s_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct fmr2_device *fmr2 = video_drvdata(file);
+	struct fmr2 *fmr2 = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
 		fmr2->mute = ctrl->value;
 		break;
 	case V4L2_CID_AUDIO_VOLUME:
-		if (ctrl->value > radio_qctrl[AUD_VOL_INDEX].maximum)
-			fmr2->curvol = radio_qctrl[AUD_VOL_INDEX].maximum;
-		else
-			fmr2->curvol = ctrl->value;
-
+		fmr2->curvol = ctrl->value;
 		break;
 	default:
 		return -EINVAL;
@@ -352,25 +334,14 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
 		printk(KERN_DEBUG "mute\n");
 #endif
 
-	mutex_lock(&lock);
+	mutex_lock(&fmr2->lock);
 	if (fmr2->curvol && !fmr2->mute) {
 		fmr2_setvolume(fmr2);
 		/* Set frequency and unmute card */
 		fmr2_setfreq(fmr2);
 	} else
-		fmr2_mute(fmr2->port);
-	mutex_unlock(&lock);
-	return 0;
-}
-
-static int vidioc_g_audio(struct file *file, void *priv,
-					struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
+		fmr2_mute(fmr2->io);
+	mutex_unlock(&fmr2->lock);
 	return 0;
 }
 
@@ -382,36 +353,26 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
-	return 0;
+	return i ? -EINVAL : 0;
 }
 
-static int vidioc_s_audio(struct file *file, void *priv,
+static int vidioc_g_audio(struct file *file, void *priv,
 					struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
-static struct fmr2_device fmr2_unit;
-
-static int fmr2_exclusive_open(struct file *file)
-{
-	return test_and_set_bit(0, &fmr2_unit.in_use) ? -EBUSY : 0;
-}
-
-static int fmr2_exclusive_release(struct file *file)
+static int vidioc_s_audio(struct file *file, void *priv,
+					struct v4l2_audio *a)
 {
-	clear_bit(0, &fmr2_unit.in_use);
-	return 0;
+	return a->index ? -EINVAL : 0;
 }
 
 static const struct v4l2_file_operations fmr2_fops = {
 	.owner          = THIS_MODULE,
-	.open           = fmr2_exclusive_open,
-	.release        = fmr2_exclusive_release,
 	.ioctl          = video_ioctl2,
 };
 
@@ -430,67 +391,63 @@ static const struct v4l2_ioctl_ops fmr2_ioctl_ops = {
 	.vidioc_s_ctrl      = vidioc_s_ctrl,
 };
 
-static struct video_device fmr2_radio = {
-	.name		= "SF16FMR2 radio",
-	.fops		= &fmr2_fops,
-	.ioctl_ops 	= &fmr2_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
 static int __init fmr2_init(void)
 {
-	fmr2_unit.port = io;
-	fmr2_unit.curvol = 0;
-	fmr2_unit.mute = 0;
-	fmr2_unit.curfreq = 0;
-	fmr2_unit.stereo = 1;
-	fmr2_unit.flags = V4L2_TUNER_CAP_LOW;
-	fmr2_unit.card_type = 0;
-	video_set_drvdata(&fmr2_radio, &fmr2_unit);
-
-	mutex_init(&lock);
-
-	if (!request_region(io, 2, "sf16fmr2")) {
-		printk(KERN_ERR "radio-sf16fmr2: request_region failed!\n");
+	struct fmr2 *fmr2 = &fmr2_card;
+	struct v4l2_device *v4l2_dev = &fmr2->v4l2_dev;
+	int res;
+
+	strlcpy(v4l2_dev->name, "sf16fmr2", sizeof(v4l2_dev->name));
+	fmr2->io = io;
+	fmr2->stereo = 1;
+	mutex_init(&fmr2->lock);
+
+	if (!request_region(fmr2->io, 2, "sf16fmr2")) {
+		v4l2_err(v4l2_dev, "request_region failed!\n");
 		return -EBUSY;
 	}
 
-	if (video_register_device(&fmr2_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
-		release_region(io, 2);
-		return -EINVAL;
+	res = v4l2_device_register(NULL, v4l2_dev);
+	if (res < 0) {
+		release_region(fmr2->io, 2);
+		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		return res;
 	}
 
-	printk(KERN_INFO "SF16FMR2 radio card driver at 0x%x.\n", io);
-	/* mute card - prevents noisy bootups */
-	mutex_lock(&lock);
-	fmr2_mute(io);
-	fmr2_product_info(&fmr2_unit);
-	mutex_unlock(&lock);
-	debug_print((KERN_DEBUG "card_type %d\n", fmr2_unit.card_type));
+	strlcpy(fmr2->vdev.name, v4l2_dev->name, sizeof(fmr2->vdev.name));
+	fmr2->vdev.v4l2_dev = v4l2_dev;
+	fmr2->vdev.fops = &fmr2_fops;
+	fmr2->vdev.ioctl_ops = &fmr2_ioctl_ops;
+	fmr2->vdev.release = video_device_release_empty;
+	video_set_drvdata(&fmr2->vdev, fmr2);
 
-	/* Only card_type == 11 implements volume */
-	if (fmr2_unit.card_type != 11)
-		radio_qctrl[AUD_VOL_INDEX].maximum = 1;
+	if (video_register_device(&fmr2->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(v4l2_dev);
+		release_region(fmr2->io, 2);
+		return -EINVAL;
+	}
 
+	v4l2_info(v4l2_dev, "SF16FMR2 radio card driver at 0x%x.\n", fmr2->io);
+	/* mute card - prevents noisy bootups */
+	mutex_lock(&fmr2->lock);
+	fmr2_mute(fmr2->io);
+	fmr2_product_info(fmr2);
+	mutex_unlock(&fmr2->lock);
+	debug_print((KERN_DEBUG "card_type %d\n", fmr2->card_type));
 	return 0;
 }
 
-MODULE_AUTHOR("Ziglio Frediano, freddy77@angelfire.com");
-MODULE_DESCRIPTION("A driver for the SF16FMR2 radio.");
-MODULE_LICENSE("GPL");
-
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the SF16FMR2 card (should be 0x384, if do not work try 0x284)");
-module_param(radio_nr, int, 0);
-
-static void __exit fmr2_cleanup_module(void)
+static void __exit fmr2_exit(void)
 {
-	video_unregister_device(&fmr2_radio);
-	release_region(io,2);
+	struct fmr2 *fmr2 = &fmr2_card;
+
+	video_unregister_device(&fmr2->vdev);
+	v4l2_device_unregister(&fmr2->v4l2_dev);
+	release_region(fmr2->io, 2);
 }
 
 module_init(fmr2_init);
-module_exit(fmr2_cleanup_module);
+module_exit(fmr2_exit);
 
 #ifndef MODULE
 
diff --git a/linux/drivers/media/radio/radio-si470x.c b/linux/drivers/media/radio/radio-si470x.c
deleted file mode 100644
index a5ba4bf21..000000000
--- a/linux/drivers/media/radio/radio-si470x.c
+++ /dev/null
@@ -1,1864 +0,0 @@
-/*
- *  drivers/media/radio/radio-si470x.c
- *
- *  Driver for USB radios for the Silicon Labs Si470x FM Radio Receivers:
- *   - Silicon Labs USB FM Radio Reference Design
- *   - ADS/Tech FM Radio Receiver (formerly Instant FM Music) (RDX-155-EF)
- *   - KWorld USB FM Radio SnapMusic Mobile 700 (FM700)
- *   - Sanei Electric, Inc. FM USB Radio (sold as DealExtreme.com PCear)
- *
- *  Copyright (c) 2009 Tobias Lorenz <tobias.lorenz@gmx.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-
-/*
- * History:
- * 2008-01-12	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Version 1.0.0
- *		- First working version
- * 2008-01-13	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Version 1.0.1
- *		- Improved error handling, every function now returns errno
- *		- Improved multi user access (start/mute/stop)
- *		- Channel doesn't get lost anymore after start/mute/stop
- *		- RDS support added (polling mode via interrupt EP 1)
- *		- marked default module parameters with *value*
- *		- switched from bit structs to bit masks
- *		- header file cleaned and integrated
- * 2008-01-14	Tobias Lorenz <tobias.lorenz@gmx.net>
- * 		Version 1.0.2
- * 		- hex values are now lower case
- * 		- commented USB ID for ADS/Tech moved on todo list
- * 		- blacklisted si470x in hid-quirks.c
- * 		- rds buffer handling functions integrated into *_work, *_read
- * 		- rds_command in si470x_poll exchanged against simple retval
- * 		- check for firmware version 15
- * 		- code order and prototypes still remain the same
- * 		- spacing and bottom of band codes remain the same
- * 2008-01-16	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Version 1.0.3
- * 		- code reordered to avoid function prototypes
- *		- switch/case defaults are now more user-friendly
- *		- unified comment style
- *		- applied all checkpatch.pl v1.12 suggestions
- *		  except the warning about the too long lines with bit comments
- *		- renamed FMRADIO to RADIO to cut line length (checkpatch.pl)
- * 2008-01-22	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Version 1.0.4
- *		- avoid poss. locking when doing copy_to_user which may sleep
- *		- RDS is automatically activated on read now
- *		- code cleaned of unnecessary rds_commands
- *		- USB Vendor/Product ID for ADS/Tech FM Radio Receiver verified
- *		  (thanks to Guillaume RAMOUSSE)
- * 2008-01-27	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Version 1.0.5
- *		- number of seek_retries changed to tune_timeout
- *		- fixed problem with incomplete tune operations by own buffers
- *		- optimization of variables and printf types
- *		- improved error logging
- * 2008-01-31	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Oliver Neukum <oliver@neukum.org>
- *		Version 1.0.6
- *		- fixed coverity checker warnings in *_usb_driver_disconnect
- *		- probe()/open() race by correct ordering in probe()
- *		- DMA coherency rules by separate allocation of all buffers
- *		- use of endianness macros
- *		- abuse of spinlock, replaced by mutex
- *		- racy handling of timer in disconnect,
- *		  replaced by delayed_work
- *		- racy interruptible_sleep_on(),
- *		  replaced with wait_event_interruptible()
- *		- handle signals in read()
- * 2008-02-08	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Oliver Neukum <oliver@neukum.org>
- *		Version 1.0.7
- *		- usb autosuspend support
- *		- unplugging fixed
- * 2008-05-07	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Version 1.0.8
- *		- hardware frequency seek support
- *		- afc indication
- *		- more safety checks, let si470x_get_freq return errno
- *		- vidioc behavior corrected according to v4l2 spec
- * 2008-10-20	Alexey Klimov <klimov.linux@gmail.com>
- * 		- add support for KWorld USB FM Radio FM700
- * 		- blacklisted KWorld radio in hid-core.c and hid-ids.h
- * 2008-12-03	Mark Lord <mlord@pobox.com>
- *		- add support for DealExtreme USB Radio
- * 2009-01-31	Bob Ross <pigiron@gmx.com>
- *		- correction of stereo detection/setting
- *		- correction of signal strength indicator scaling
- * 2009-01-31	Rick Bronson <rick@efn.org>
- *		Tobias Lorenz <tobias.lorenz@gmx.net>
- *		- add LED status output
- *		- get HW/SW version from scratchpad
- *
- * ToDo:
- * - add firmware download/update support
- * - RDS support: interrupt mode, instead of polling
- */
-
-
-/* driver definitions */
-#define DRIVER_AUTHOR "Tobias Lorenz <tobias.lorenz@gmx.net>"
-#define DRIVER_NAME "radio-si470x"
-#define DRIVER_KERNEL_VERSION KERNEL_VERSION(1, 0, 9)
-#define DRIVER_CARD "Silicon Labs Si470x FM Radio Receiver"
-#define DRIVER_DESC "USB radio driver for Si470x FM Radio Receivers"
-#define DRIVER_VERSION "1.0.9"
-
-
-/* kernel includes */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/input.h>
-#include <linux/usb.h>
-#include <linux/hid.h>
-#include <linux/version.h>
-#include "compat.h"
-#include <linux/videodev2.h>
-#include <linux/mutex.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
-#include <media/rds.h>
-#include <asm/unaligned.h>
-
-
-/* USB Device ID List */
-static struct usb_device_id si470x_usb_driver_id_table[] = {
-	/* Silicon Labs USB FM Radio Reference Design */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x10c4, 0x818a, USB_CLASS_HID, 0, 0) },
-	/* ADS/Tech FM Radio Receiver (formerly Instant FM Music) */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x06e1, 0xa155, USB_CLASS_HID, 0, 0) },
-	/* KWorld USB FM Radio SnapMusic Mobile 700 (FM700) */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x1b80, 0xd700, USB_CLASS_HID, 0, 0) },
-	/* Sanei Electric, Inc. FM USB Radio (sold as DealExtreme.com PCear) */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x10c5, 0x819a, USB_CLASS_HID, 0, 0) },
-	/* Terminating entry */
-	{ }
-};
-MODULE_DEVICE_TABLE(usb, si470x_usb_driver_id_table);
-
-
-
-/**************************************************************************
- * Module Parameters
- **************************************************************************/
-
-/* Radio Nr */
-static int radio_nr = -1;
-module_param(radio_nr, int, 0444);
-MODULE_PARM_DESC(radio_nr, "Radio Nr");
-
-/* Spacing (kHz) */
-/* 0: 200 kHz (USA, Australia) */
-/* 1: 100 kHz (Europe, Japan) */
-/* 2:  50 kHz */
-static unsigned short space = 2;
-module_param(space, ushort, 0444);
-MODULE_PARM_DESC(space, "Spacing: 0=200kHz 1=100kHz *2=50kHz*");
-
-/* Bottom of Band (MHz) */
-/* 0: 87.5 - 108 MHz (USA, Europe)*/
-/* 1: 76   - 108 MHz (Japan wide band) */
-/* 2: 76   -  90 MHz (Japan) */
-static unsigned short band = 1;
-module_param(band, ushort, 0444);
-MODULE_PARM_DESC(band, "Band: 0=87.5..108MHz *1=76..108MHz* 2=76..90MHz");
-
-/* De-emphasis */
-/* 0: 75 us (USA) */
-/* 1: 50 us (Europe, Australia, Japan) */
-static unsigned short de = 1;
-module_param(de, ushort, 0444);
-MODULE_PARM_DESC(de, "De-emphasis: 0=75us *1=50us*");
-
-/* USB timeout */
-static unsigned int usb_timeout = 500;
-module_param(usb_timeout, uint, 0644);
-MODULE_PARM_DESC(usb_timeout, "USB timeout (ms): *500*");
-
-/* Tune timeout */
-static unsigned int tune_timeout = 3000;
-module_param(tune_timeout, uint, 0644);
-MODULE_PARM_DESC(tune_timeout, "Tune timeout: *3000*");
-
-/* Seek timeout */
-static unsigned int seek_timeout = 5000;
-module_param(seek_timeout, uint, 0644);
-MODULE_PARM_DESC(seek_timeout, "Seek timeout: *5000*");
-
-/* RDS buffer blocks */
-static unsigned int rds_buf = 100;
-module_param(rds_buf, uint, 0444);
-MODULE_PARM_DESC(rds_buf, "RDS buffer entries: *100*");
-
-/* RDS maximum block errors */
-static unsigned short max_rds_errors = 1;
-/* 0 means   0  errors requiring correction */
-/* 1 means 1-2  errors requiring correction (used by original USBRadio.exe) */
-/* 2 means 3-5  errors requiring correction */
-/* 3 means   6+ errors or errors in checkword, correction not possible */
-module_param(max_rds_errors, ushort, 0644);
-MODULE_PARM_DESC(max_rds_errors, "RDS maximum block errors: *1*");
-
-/* RDS poll frequency */
-static unsigned int rds_poll_time = 40;
-/* 40 is used by the original USBRadio.exe */
-/* 50 is used by radio-cadet */
-/* 75 should be okay */
-/* 80 is the usual RDS receive interval */
-module_param(rds_poll_time, uint, 0644);
-MODULE_PARM_DESC(rds_poll_time, "RDS poll time (ms): *40*");
-
-
-
-/**************************************************************************
- * Register Definitions
- **************************************************************************/
-#define RADIO_REGISTER_SIZE	2	/* 16 register bit width */
-#define RADIO_REGISTER_NUM	16	/* DEVICEID   ... RDSD */
-#define RDS_REGISTER_NUM	6	/* STATUSRSSI ... RDSD */
-
-#define DEVICEID		0	/* Device ID */
-#define DEVICEID_PN		0xf000	/* bits 15..12: Part Number */
-#define DEVICEID_MFGID		0x0fff	/* bits 11..00: Manufacturer ID */
-
-#define CHIPID			1	/* Chip ID */
-#define CHIPID_REV		0xfc00	/* bits 15..10: Chip Version */
-#define CHIPID_DEV		0x0200	/* bits 09..09: Device */
-#define CHIPID_FIRMWARE		0x01ff	/* bits 08..00: Firmware Version */
-
-#define POWERCFG		2	/* Power Configuration */
-#define POWERCFG_DSMUTE		0x8000	/* bits 15..15: Softmute Disable */
-#define POWERCFG_DMUTE		0x4000	/* bits 14..14: Mute Disable */
-#define POWERCFG_MONO		0x2000	/* bits 13..13: Mono Select */
-#define POWERCFG_RDSM		0x0800	/* bits 11..11: RDS Mode (Si4701 only) */
-#define POWERCFG_SKMODE		0x0400	/* bits 10..10: Seek Mode */
-#define POWERCFG_SEEKUP		0x0200	/* bits 09..09: Seek Direction */
-#define POWERCFG_SEEK		0x0100	/* bits 08..08: Seek */
-#define POWERCFG_DISABLE	0x0040	/* bits 06..06: Powerup Disable */
-#define POWERCFG_ENABLE		0x0001	/* bits 00..00: Powerup Enable */
-
-#define CHANNEL			3	/* Channel */
-#define CHANNEL_TUNE		0x8000	/* bits 15..15: Tune */
-#define CHANNEL_CHAN		0x03ff	/* bits 09..00: Channel Select */
-
-#define SYSCONFIG1		4	/* System Configuration 1 */
-#define SYSCONFIG1_RDSIEN	0x8000	/* bits 15..15: RDS Interrupt Enable (Si4701 only) */
-#define SYSCONFIG1_STCIEN	0x4000	/* bits 14..14: Seek/Tune Complete Interrupt Enable */
-#define SYSCONFIG1_RDS		0x1000	/* bits 12..12: RDS Enable (Si4701 only) */
-#define SYSCONFIG1_DE		0x0800	/* bits 11..11: De-emphasis (0=75us 1=50us) */
-#define SYSCONFIG1_AGCD		0x0400	/* bits 10..10: AGC Disable */
-#define SYSCONFIG1_BLNDADJ	0x00c0	/* bits 07..06: Stereo/Mono Blend Level Adjustment */
-#define SYSCONFIG1_GPIO3	0x0030	/* bits 05..04: General Purpose I/O 3 */
-#define SYSCONFIG1_GPIO2	0x000c	/* bits 03..02: General Purpose I/O 2 */
-#define SYSCONFIG1_GPIO1	0x0003	/* bits 01..00: General Purpose I/O 1 */
-
-#define SYSCONFIG2		5	/* System Configuration 2 */
-#define SYSCONFIG2_SEEKTH	0xff00	/* bits 15..08: RSSI Seek Threshold */
-#define SYSCONFIG2_BAND		0x0080	/* bits 07..06: Band Select */
-#define SYSCONFIG2_SPACE	0x0030	/* bits 05..04: Channel Spacing */
-#define SYSCONFIG2_VOLUME	0x000f	/* bits 03..00: Volume */
-
-#define SYSCONFIG3		6	/* System Configuration 3 */
-#define SYSCONFIG3_SMUTER	0xc000	/* bits 15..14: Softmute Attack/Recover Rate */
-#define SYSCONFIG3_SMUTEA	0x3000	/* bits 13..12: Softmute Attenuation */
-#define SYSCONFIG3_SKSNR	0x00f0	/* bits 07..04: Seek SNR Threshold */
-#define SYSCONFIG3_SKCNT	0x000f	/* bits 03..00: Seek FM Impulse Detection Threshold */
-
-#define TEST1			7	/* Test 1 */
-#define TEST1_AHIZEN		0x4000	/* bits 14..14: Audio High-Z Enable */
-
-#define TEST2			8	/* Test 2 */
-/* TEST2 only contains reserved bits */
-
-#define BOOTCONFIG		9	/* Boot Configuration */
-/* BOOTCONFIG only contains reserved bits */
-
-#define STATUSRSSI		10	/* Status RSSI */
-#define STATUSRSSI_RDSR		0x8000	/* bits 15..15: RDS Ready (Si4701 only) */
-#define STATUSRSSI_STC		0x4000	/* bits 14..14: Seek/Tune Complete */
-#define STATUSRSSI_SF		0x2000	/* bits 13..13: Seek Fail/Band Limit */
-#define STATUSRSSI_AFCRL	0x1000	/* bits 12..12: AFC Rail */
-#define STATUSRSSI_RDSS		0x0800	/* bits 11..11: RDS Synchronized (Si4701 only) */
-#define STATUSRSSI_BLERA	0x0600	/* bits 10..09: RDS Block A Errors (Si4701 only) */
-#define STATUSRSSI_ST		0x0100	/* bits 08..08: Stereo Indicator */
-#define STATUSRSSI_RSSI		0x00ff	/* bits 07..00: RSSI (Received Signal Strength Indicator) */
-
-#define READCHAN		11	/* Read Channel */
-#define READCHAN_BLERB		0xc000	/* bits 15..14: RDS Block D Errors (Si4701 only) */
-#define READCHAN_BLERC		0x3000	/* bits 13..12: RDS Block C Errors (Si4701 only) */
-#define READCHAN_BLERD		0x0c00	/* bits 11..10: RDS Block B Errors (Si4701 only) */
-#define READCHAN_READCHAN	0x03ff	/* bits 09..00: Read Channel */
-
-#define RDSA			12	/* RDSA */
-#define RDSA_RDSA		0xffff	/* bits 15..00: RDS Block A Data (Si4701 only) */
-
-#define RDSB			13	/* RDSB */
-#define RDSB_RDSB		0xffff	/* bits 15..00: RDS Block B Data (Si4701 only) */
-
-#define RDSC			14	/* RDSC */
-#define RDSC_RDSC		0xffff	/* bits 15..00: RDS Block C Data (Si4701 only) */
-
-#define RDSD			15	/* RDSD */
-#define RDSD_RDSD		0xffff	/* bits 15..00: RDS Block D Data (Si4701 only) */
-
-
-
-/**************************************************************************
- * USB HID Reports
- **************************************************************************/
-
-/* Reports 1-16 give direct read/write access to the 16 Si470x registers */
-/* with the (REPORT_ID - 1) corresponding to the register address across USB */
-/* endpoint 0 using GET_REPORT and SET_REPORT */
-#define REGISTER_REPORT_SIZE	(RADIO_REGISTER_SIZE + 1)
-#define REGISTER_REPORT(reg)	((reg) + 1)
-
-/* Report 17 gives direct read/write access to the entire Si470x register */
-/* map across endpoint 0 using GET_REPORT and SET_REPORT */
-#define ENTIRE_REPORT_SIZE	(RADIO_REGISTER_NUM * RADIO_REGISTER_SIZE + 1)
-#define ENTIRE_REPORT		17
-
-/* Report 18 is used to send the lowest 6 Si470x registers up the HID */
-/* interrupt endpoint 1 to Windows every 20 milliseconds for status */
-#define RDS_REPORT_SIZE		(RDS_REGISTER_NUM * RADIO_REGISTER_SIZE + 1)
-#define RDS_REPORT		18
-
-/* Report 19: LED state */
-#define LED_REPORT_SIZE		3
-#define LED_REPORT		19
-
-/* Report 19: stream */
-#define STREAM_REPORT_SIZE	3
-#define STREAM_REPORT		19
-
-/* Report 20: scratch */
-#define SCRATCH_PAGE_SIZE	63
-#define SCRATCH_REPORT_SIZE	(SCRATCH_PAGE_SIZE + 1)
-#define SCRATCH_REPORT		20
-
-/* Reports 19-22: flash upgrade of the C8051F321 */
-#define WRITE_REPORT_SIZE	4
-#define WRITE_REPORT		19
-#define FLASH_REPORT_SIZE	64
-#define FLASH_REPORT		20
-#define CRC_REPORT_SIZE		3
-#define CRC_REPORT		21
-#define RESPONSE_REPORT_SIZE	2
-#define RESPONSE_REPORT		22
-
-/* Report 23: currently unused, but can accept 60 byte reports on the HID */
-/* interrupt out endpoint 2 every 1 millisecond */
-#define UNUSED_REPORT		23
-
-
-
-/**************************************************************************
- * Software/Hardware Versions
- **************************************************************************/
-#define RADIO_SW_VERSION_NOT_BOOTLOADABLE	6
-#define RADIO_SW_VERSION			7
-#define RADIO_SW_VERSION_CURRENT		15
-#define RADIO_HW_VERSION			1
-
-#define SCRATCH_PAGE_SW_VERSION	1
-#define SCRATCH_PAGE_HW_VERSION	2
-
-
-
-/**************************************************************************
- * LED State Definitions
- **************************************************************************/
-#define LED_COMMAND		0x35
-
-#define NO_CHANGE_LED		0x00
-#define ALL_COLOR_LED		0x01	/* streaming state */
-#define BLINK_GREEN_LED		0x02	/* connect state */
-#define BLINK_RED_LED		0x04
-#define BLINK_ORANGE_LED	0x10	/* disconnect state */
-#define SOLID_GREEN_LED		0x20	/* tuning/seeking state */
-#define SOLID_RED_LED		0x40	/* bootload state */
-#define SOLID_ORANGE_LED	0x80
-
-
-
-/**************************************************************************
- * Stream State Definitions
- **************************************************************************/
-#define STREAM_COMMAND	0x36
-#define STREAM_VIDPID	0x00
-#define STREAM_AUDIO	0xff
-
-
-
-/**************************************************************************
- * Bootloader / Flash Commands
- **************************************************************************/
-
-/* unique id sent to bootloader and required to put into a bootload state */
-#define UNIQUE_BL_ID		0x34
-
-/* mask for the flash data */
-#define FLASH_DATA_MASK		0x55
-
-/* bootloader commands */
-#define GET_SW_VERSION_COMMAND	0x00
-#define SET_PAGE_COMMAND	0x01
-#define ERASE_PAGE_COMMAND	0x02
-#define WRITE_PAGE_COMMAND	0x03
-#define CRC_ON_PAGE_COMMAND	0x04
-#define READ_FLASH_BYTE_COMMAND	0x05
-#define RESET_DEVICE_COMMAND	0x06
-#define GET_HW_VERSION_COMMAND	0x07
-#define BLANK			0xff
-
-/* bootloader command responses */
-#define COMMAND_OK		0x01
-#define COMMAND_FAILED		0x02
-#define COMMAND_PENDING		0x03
-
-
-
-/**************************************************************************
- * General Driver Definitions
- **************************************************************************/
-
-/*
- * si470x_device - private data
- */
-struct si470x_device {
-	/* reference to USB and video device */
-	struct usb_device *usbdev;
-	struct usb_interface *intf;
-	struct video_device *videodev;
-
-	/* driver management */
-	unsigned int users;
-	unsigned char disconnected;
-	struct mutex disconnect_lock;
-
-	/* Silabs internal registers (0..15) */
-	unsigned short registers[RADIO_REGISTER_NUM];
-
-	/* RDS receive buffer */
-	struct delayed_work work;
-	wait_queue_head_t read_queue;
-	struct mutex lock;		/* buffer locking */
-	unsigned char *buffer;		/* size is always multiple of three */
-	unsigned int buf_size;
-	unsigned int rd_index;
-	unsigned int wr_index;
-
-	/* scratch page */
-	unsigned char software_version;
-	unsigned char hardware_version;
-};
-
-
-/*
- * The frequency is set in units of 62.5 Hz when using V4L2_TUNER_CAP_LOW,
- * 62.5 kHz otherwise.
- * The tuner is able to have a channel spacing of 50, 100 or 200 kHz.
- * tuner->capability is therefore set to V4L2_TUNER_CAP_LOW
- * The FREQ_MUL is then: 1 MHz / 62.5 Hz = 16000
- */
-#define FREQ_MUL (1000000 / 62.5)
-
-
-
-/**************************************************************************
- * General Driver Functions - REGISTER_REPORTs
- **************************************************************************/
-
-/*
- * si470x_get_report - receive a HID report
- */
-static int si470x_get_report(struct si470x_device *radio, void *buf, int size)
-{
-	unsigned char *report = (unsigned char *) buf;
-	int retval;
-
-	retval = usb_control_msg(radio->usbdev,
-		usb_rcvctrlpipe(radio->usbdev, 0),
-		HID_REQ_GET_REPORT,
-		USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
-		report[0], 2,
-		buf, size, usb_timeout);
-
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": si470x_get_report: usb_control_msg returned %d\n",
-			retval);
-	return retval;
-}
-
-
-/*
- * si470x_set_report - send a HID report
- */
-static int si470x_set_report(struct si470x_device *radio, void *buf, int size)
-{
-	unsigned char *report = (unsigned char *) buf;
-	int retval;
-
-	retval = usb_control_msg(radio->usbdev,
-		usb_sndctrlpipe(radio->usbdev, 0),
-		HID_REQ_SET_REPORT,
-		USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
-		report[0], 2,
-		buf, size, usb_timeout);
-
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": si470x_set_report: usb_control_msg returned %d\n",
-			retval);
-	return retval;
-}
-
-
-/*
- * si470x_get_register - read register
- */
-static int si470x_get_register(struct si470x_device *radio, int regnr)
-{
-	unsigned char buf[REGISTER_REPORT_SIZE];
-	int retval;
-
-	buf[0] = REGISTER_REPORT(regnr);
-
-	retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
-
-	if (retval >= 0)
-		radio->registers[regnr] = get_unaligned_be16(&buf[1]);
-
-	return (retval < 0) ? -EINVAL : 0;
-}
-
-
-/*
- * si470x_set_register - write register
- */
-static int si470x_set_register(struct si470x_device *radio, int regnr)
-{
-	unsigned char buf[REGISTER_REPORT_SIZE];
-	int retval;
-
-	buf[0] = REGISTER_REPORT(regnr);
-	put_unaligned_be16(radio->registers[regnr], &buf[1]);
-
-	retval = si470x_set_report(radio, (void *) &buf, sizeof(buf));
-
-	return (retval < 0) ? -EINVAL : 0;
-}
-
-
-/*
- * si470x_set_chan - set the channel
- */
-static int si470x_set_chan(struct si470x_device *radio, unsigned short chan)
-{
-	int retval;
-	unsigned long timeout;
-	bool timed_out = 0;
-
-	/* start tuning */
-	radio->registers[CHANNEL] &= ~CHANNEL_CHAN;
-	radio->registers[CHANNEL] |= CHANNEL_TUNE | chan;
-	retval = si470x_set_register(radio, CHANNEL);
-	if (retval < 0)
-		goto done;
-
-	/* wait till tune operation has completed */
-	timeout = jiffies + msecs_to_jiffies(tune_timeout);
-	do {
-		retval = si470x_get_register(radio, STATUSRSSI);
-		if (retval < 0)
-			goto stop;
-		timed_out = time_after(jiffies, timeout);
-	} while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) &&
-		(!timed_out));
-	if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0)
-		printk(KERN_WARNING DRIVER_NAME ": tune does not complete\n");
-	if (timed_out)
-		printk(KERN_WARNING DRIVER_NAME
-			": tune timed out after %u ms\n", tune_timeout);
-
-stop:
-	/* stop tuning */
-	radio->registers[CHANNEL] &= ~CHANNEL_TUNE;
-	retval = si470x_set_register(radio, CHANNEL);
-
-done:
-	return retval;
-}
-
-
-/*
- * si470x_get_freq - get the frequency
- */
-static int si470x_get_freq(struct si470x_device *radio, unsigned int *freq)
-{
-	unsigned int spacing, band_bottom;
-	unsigned short chan;
-	int retval;
-
-	/* Spacing (kHz) */
-	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) {
-	/* 0: 200 kHz (USA, Australia) */
-	case 0:
-		spacing = 0.200 * FREQ_MUL; break;
-	/* 1: 100 kHz (Europe, Japan) */
-	case 1:
-		spacing = 0.100 * FREQ_MUL; break;
-	/* 2:  50 kHz */
-	default:
-		spacing = 0.050 * FREQ_MUL; break;
-	};
-
-	/* Bottom of Band (MHz) */
-	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
-	/* 0: 87.5 - 108 MHz (USA, Europe) */
-	case 0:
-		band_bottom = 87.5 * FREQ_MUL; break;
-	/* 1: 76   - 108 MHz (Japan wide band) */
-	default:
-		band_bottom = 76   * FREQ_MUL; break;
-	/* 2: 76   -  90 MHz (Japan) */
-	case 2:
-		band_bottom = 76   * FREQ_MUL; break;
-	};
-
-	/* read channel */
-	retval = si470x_get_register(radio, READCHAN);
-	chan = radio->registers[READCHAN] & READCHAN_READCHAN;
-
-	/* Frequency (MHz) = Spacing (kHz) x Channel + Bottom of Band (MHz) */
-	*freq = chan * spacing + band_bottom;
-
-	return retval;
-}
-
-
-/*
- * si470x_set_freq - set the frequency
- */
-static int si470x_set_freq(struct si470x_device *radio, unsigned int freq)
-{
-	unsigned int spacing, band_bottom;
-	unsigned short chan;
-
-	/* Spacing (kHz) */
-	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) {
-	/* 0: 200 kHz (USA, Australia) */
-	case 0:
-		spacing = 0.200 * FREQ_MUL; break;
-	/* 1: 100 kHz (Europe, Japan) */
-	case 1:
-		spacing = 0.100 * FREQ_MUL; break;
-	/* 2:  50 kHz */
-	default:
-		spacing = 0.050 * FREQ_MUL; break;
-	};
-
-	/* Bottom of Band (MHz) */
-	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
-	/* 0: 87.5 - 108 MHz (USA, Europe) */
-	case 0:
-		band_bottom = 87.5 * FREQ_MUL; break;
-	/* 1: 76   - 108 MHz (Japan wide band) */
-	default:
-		band_bottom = 76   * FREQ_MUL; break;
-	/* 2: 76   -  90 MHz (Japan) */
-	case 2:
-		band_bottom = 76   * FREQ_MUL; break;
-	};
-
-	/* Chan = [ Freq (Mhz) - Bottom of Band (MHz) ] / Spacing (kHz) */
-	chan = (freq - band_bottom) / spacing;
-
-	return si470x_set_chan(radio, chan);
-}
-
-
-/*
- * si470x_set_seek - set seek
- */
-static int si470x_set_seek(struct si470x_device *radio,
-		unsigned int wrap_around, unsigned int seek_upward)
-{
-	int retval = 0;
-	unsigned long timeout;
-	bool timed_out = 0;
-
-	/* start seeking */
-	radio->registers[POWERCFG] |= POWERCFG_SEEK;
-	if (wrap_around == 1)
-		radio->registers[POWERCFG] &= ~POWERCFG_SKMODE;
-	else
-		radio->registers[POWERCFG] |= POWERCFG_SKMODE;
-	if (seek_upward == 1)
-		radio->registers[POWERCFG] |= POWERCFG_SEEKUP;
-	else
-		radio->registers[POWERCFG] &= ~POWERCFG_SEEKUP;
-	retval = si470x_set_register(radio, POWERCFG);
-	if (retval < 0)
-		goto done;
-
-	/* wait till seek operation has completed */
-	timeout = jiffies + msecs_to_jiffies(seek_timeout);
-	do {
-		retval = si470x_get_register(radio, STATUSRSSI);
-		if (retval < 0)
-			goto stop;
-		timed_out = time_after(jiffies, timeout);
-	} while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) &&
-		(!timed_out));
-	if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0)
-		printk(KERN_WARNING DRIVER_NAME ": seek does not complete\n");
-	if (radio->registers[STATUSRSSI] & STATUSRSSI_SF)
-		printk(KERN_WARNING DRIVER_NAME
-			": seek failed / band limit reached\n");
-	if (timed_out)
-		printk(KERN_WARNING DRIVER_NAME
-			": seek timed out after %u ms\n", seek_timeout);
-
-stop:
-	/* stop seeking */
-	radio->registers[POWERCFG] &= ~POWERCFG_SEEK;
-	retval = si470x_set_register(radio, POWERCFG);
-
-done:
-	/* try again, if timed out */
-	if ((retval == 0) && timed_out)
-		retval = -EAGAIN;
-
-	return retval;
-}
-
-
-/*
- * si470x_start - switch on radio
- */
-static int si470x_start(struct si470x_device *radio)
-{
-	int retval;
-
-	/* powercfg */
-	radio->registers[POWERCFG] =
-		POWERCFG_DMUTE | POWERCFG_ENABLE | POWERCFG_RDSM;
-	retval = si470x_set_register(radio, POWERCFG);
-	if (retval < 0)
-		goto done;
-
-	/* sysconfig 1 */
-	radio->registers[SYSCONFIG1] = SYSCONFIG1_DE;
-	retval = si470x_set_register(radio, SYSCONFIG1);
-	if (retval < 0)
-		goto done;
-
-	/* sysconfig 2 */
-	radio->registers[SYSCONFIG2] =
-		(0x3f  << 8) |				/* SEEKTH */
-		((band  << 6) & SYSCONFIG2_BAND)  |	/* BAND */
-		((space << 4) & SYSCONFIG2_SPACE) |	/* SPACE */
-		15;					/* VOLUME (max) */
-	retval = si470x_set_register(radio, SYSCONFIG2);
-	if (retval < 0)
-		goto done;
-
-	/* reset last channel */
-	retval = si470x_set_chan(radio,
-		radio->registers[CHANNEL] & CHANNEL_CHAN);
-
-done:
-	return retval;
-}
-
-
-/*
- * si470x_stop - switch off radio
- */
-static int si470x_stop(struct si470x_device *radio)
-{
-	int retval;
-
-	/* sysconfig 1 */
-	radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
-	retval = si470x_set_register(radio, SYSCONFIG1);
-	if (retval < 0)
-		goto done;
-
-	/* powercfg */
-	radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
-	/* POWERCFG_ENABLE has to automatically go low */
-	radio->registers[POWERCFG] |= POWERCFG_ENABLE |	POWERCFG_DISABLE;
-	retval = si470x_set_register(radio, POWERCFG);
-
-done:
-	return retval;
-}
-
-
-/*
- * si470x_rds_on - switch on rds reception
- */
-static int si470x_rds_on(struct si470x_device *radio)
-{
-	int retval;
-
-	/* sysconfig 1 */
-	mutex_lock(&radio->lock);
-	radio->registers[SYSCONFIG1] |= SYSCONFIG1_RDS;
-	retval = si470x_set_register(radio, SYSCONFIG1);
-	if (retval < 0)
-		radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
-	mutex_unlock(&radio->lock);
-
-	return retval;
-}
-
-
-
-/**************************************************************************
- * General Driver Functions - ENTIRE_REPORT
- **************************************************************************/
-
-/*
- * si470x_get_all_registers - read entire registers
- */
-static int si470x_get_all_registers(struct si470x_device *radio)
-{
-	unsigned char buf[ENTIRE_REPORT_SIZE];
-	int retval;
-	unsigned char regnr;
-
-	buf[0] = ENTIRE_REPORT;
-
-	retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
-
-	if (retval >= 0)
-		for (regnr = 0; regnr < RADIO_REGISTER_NUM; regnr++)
-			radio->registers[regnr] = get_unaligned_be16(
-				&buf[regnr * RADIO_REGISTER_SIZE + 1]);
-
-	return (retval < 0) ? -EINVAL : 0;
-}
-
-
-
-/**************************************************************************
- * General Driver Functions - RDS_REPORT
- **************************************************************************/
-
-/*
- * si470x_get_rds_registers - read rds registers
- */
-static int si470x_get_rds_registers(struct si470x_device *radio)
-{
-	unsigned char buf[RDS_REPORT_SIZE];
-	int retval;
-	int size;
-	unsigned char regnr;
-
-	buf[0] = RDS_REPORT;
-
-	retval = usb_interrupt_msg(radio->usbdev,
-		usb_rcvintpipe(radio->usbdev, 1),
-		(void *) &buf, sizeof(buf), &size, usb_timeout);
-	if (size != sizeof(buf))
-		printk(KERN_WARNING DRIVER_NAME ": si470x_get_rds_registers: "
-			"return size differs: %d != %zu\n", size, sizeof(buf));
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME ": si470x_get_rds_registers: "
-			"usb_interrupt_msg returned %d\n", retval);
-
-	if (retval >= 0)
-		for (regnr = 0; regnr < RDS_REGISTER_NUM; regnr++)
-			radio->registers[STATUSRSSI + regnr] =
-				get_unaligned_be16(
-				&buf[regnr * RADIO_REGISTER_SIZE + 1]);
-
-	return (retval < 0) ? -EINVAL : 0;
-}
-
-
-
-/**************************************************************************
- * General Driver Functions - LED_REPORT
- **************************************************************************/
-
-/*
- * si470x_set_led_state - sets the led state
- */
-static int si470x_set_led_state(struct si470x_device *radio,
-		unsigned char led_state)
-{
-	unsigned char buf[LED_REPORT_SIZE];
-	int retval;
-
-	buf[0] = LED_REPORT;
-	buf[1] = LED_COMMAND;
-	buf[2] = led_state;
-
-	retval = si470x_set_report(radio, (void *) &buf, sizeof(buf));
-
-	return (retval < 0) ? -EINVAL : 0;
-}
-
-
-
-/**************************************************************************
- * General Driver Functions - SCRATCH_REPORT
- **************************************************************************/
-
-/*
- * si470x_get_scratch_versions - gets the scratch page and version infos
- */
-static int si470x_get_scratch_page_versions(struct si470x_device *radio)
-{
-	unsigned char buf[SCRATCH_REPORT_SIZE];
-	int retval;
-
-	buf[0] = SCRATCH_REPORT;
-
-	retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
-
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME ": si470x_get_scratch: "
-			"si470x_get_report returned %d\n", retval);
-	else {
-		radio->software_version = buf[1];
-		radio->hardware_version = buf[2];
-	}
-
-	return (retval < 0) ? -EINVAL : 0;
-}
-
-
-
-/**************************************************************************
- * RDS Driver Functions
- **************************************************************************/
-
-/*
- * si470x_rds - rds processing function
- */
-static void si470x_rds(struct si470x_device *radio)
-{
-	unsigned char blocknum;
-	unsigned short bler; /* rds block errors */
-	unsigned short rds;
-	unsigned char tmpbuf[3];
-
-	/* get rds blocks */
-	if (si470x_get_rds_registers(radio) < 0)
-		return;
-	if ((radio->registers[STATUSRSSI] & STATUSRSSI_RDSR) == 0) {
-		/* No RDS group ready */
-		return;
-	}
-	if ((radio->registers[STATUSRSSI] & STATUSRSSI_RDSS) == 0) {
-		/* RDS decoder not synchronized */
-		return;
-	}
-
-	/* copy all four RDS blocks to internal buffer */
-	mutex_lock(&radio->lock);
-	for (blocknum = 0; blocknum < 4; blocknum++) {
-		switch (blocknum) {
-		default:
-			bler = (radio->registers[STATUSRSSI] &
-					STATUSRSSI_BLERA) >> 9;
-			rds = radio->registers[RDSA];
-			break;
-		case 1:
-			bler = (radio->registers[READCHAN] &
-					READCHAN_BLERB) >> 14;
-			rds = radio->registers[RDSB];
-			break;
-		case 2:
-			bler = (radio->registers[READCHAN] &
-					READCHAN_BLERC) >> 12;
-			rds = radio->registers[RDSC];
-			break;
-		case 3:
-			bler = (radio->registers[READCHAN] &
-					READCHAN_BLERD) >> 10;
-			rds = radio->registers[RDSD];
-			break;
-		};
-
-		/* Fill the V4L2 RDS buffer */
-		put_unaligned_le16(rds, &tmpbuf);
-		tmpbuf[2] = blocknum;		/* offset name */
-		tmpbuf[2] |= blocknum << 3;	/* received offset */
-		if (bler > max_rds_errors)
-			tmpbuf[2] |= 0x80; /* uncorrectable errors */
-		else if (bler > 0)
-			tmpbuf[2] |= 0x40; /* corrected error(s) */
-
-		/* copy RDS block to internal buffer */
-		memcpy(&radio->buffer[radio->wr_index], &tmpbuf, 3);
-		radio->wr_index += 3;
-
-		/* wrap write pointer */
-		if (radio->wr_index >= radio->buf_size)
-			radio->wr_index = 0;
-
-		/* check for overflow */
-		if (radio->wr_index == radio->rd_index) {
-			/* increment and wrap read pointer */
-			radio->rd_index += 3;
-			if (radio->rd_index >= radio->buf_size)
-				radio->rd_index = 0;
-		}
-	}
-	mutex_unlock(&radio->lock);
-
-	/* wake up read queue */
-	if (radio->wr_index != radio->rd_index)
-		wake_up_interruptible(&radio->read_queue);
-}
-
-
-/*
- * si470x_work - rds work function
- */
-static void si470x_work(struct work_struct *work)
-{
-	struct si470x_device *radio = container_of(work, struct si470x_device,
-		work.work);
-
-	/* safety checks */
-	if (radio->disconnected)
-		return;
-	if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
-		return;
-
-	si470x_rds(radio);
-	schedule_delayed_work(&radio->work, msecs_to_jiffies(rds_poll_time));
-}
-
-
-
-/**************************************************************************
- * File Operations Interface
- **************************************************************************/
-
-/*
- * si470x_fops_read - read RDS data
- */
-static ssize_t si470x_fops_read(struct file *file, char __user *buf,
-		size_t count, loff_t *ppos)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-	unsigned int block_count = 0;
-
-	/* switch on rds reception */
-	if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0) {
-		si470x_rds_on(radio);
-		schedule_delayed_work(&radio->work,
-			msecs_to_jiffies(rds_poll_time));
-	}
-
-	/* block if no new data available */
-	while (radio->wr_index == radio->rd_index) {
-		if (file->f_flags & O_NONBLOCK) {
-			retval = -EWOULDBLOCK;
-			goto done;
-		}
-		if (wait_event_interruptible(radio->read_queue,
-			radio->wr_index != radio->rd_index) < 0) {
-			retval = -EINTR;
-			goto done;
-		}
-	}
-
-	/* calculate block count from byte count */
-	count /= 3;
-
-	/* copy RDS block out of internal buffer and to user buffer */
-	mutex_lock(&radio->lock);
-	while (block_count < count) {
-		if (radio->rd_index == radio->wr_index)
-			break;
-
-		/* always transfer rds complete blocks */
-		if (copy_to_user(buf, &radio->buffer[radio->rd_index], 3))
-			/* retval = -EFAULT; */
-			break;
-
-		/* increment and wrap read pointer */
-		radio->rd_index += 3;
-		if (radio->rd_index >= radio->buf_size)
-			radio->rd_index = 0;
-
-		/* increment counters */
-		block_count++;
-		buf += 3;
-		retval += 3;
-	}
-	mutex_unlock(&radio->lock);
-
-done:
-	return retval;
-}
-
-
-/*
- * si470x_fops_poll - poll RDS data
- */
-static unsigned int si470x_fops_poll(struct file *file,
-		struct poll_table_struct *pts)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* switch on rds reception */
-	if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0) {
-		si470x_rds_on(radio);
-		schedule_delayed_work(&radio->work,
-			msecs_to_jiffies(rds_poll_time));
-	}
-
-	poll_wait(file, &radio->read_queue, pts);
-
-	if (radio->rd_index != radio->wr_index)
-		retval = POLLIN | POLLRDNORM;
-
-	return retval;
-}
-
-
-/*
- * si470x_fops_open - file open
- */
-static int si470x_fops_open(struct file *file)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval;
-
-	lock_kernel();
-	radio->users++;
-
-	retval = usb_autopm_get_interface(radio->intf);
-	if (retval < 0) {
-		radio->users--;
-		retval = -EIO;
-		goto done;
-	}
-
-	if (radio->users == 1) {
-		/* start radio */
-		retval = si470x_start(radio);
-		if (retval < 0)
-			usb_autopm_put_interface(radio->intf);
-	}
-
-done:
-	unlock_kernel();
-	return retval;
-}
-
-
-/*
- * si470x_fops_release - file release
- */
-static int si470x_fops_release(struct file *file)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety check */
-	if (!radio) {
-		retval = -ENODEV;
-		goto done;
-	}
-
-	mutex_lock(&radio->disconnect_lock);
-	radio->users--;
-	if (radio->users == 0) {
-		if (radio->disconnected) {
-			video_unregister_device(radio->videodev);
-			kfree(radio->buffer);
-			kfree(radio);
-			goto unlock;
-		}
-
-		/* stop rds reception */
-		cancel_delayed_work_sync(&radio->work);
-
-		/* cancel read processes */
-		wake_up_interruptible(&radio->read_queue);
-
-		/* stop radio */
-		retval = si470x_stop(radio);
-		usb_autopm_put_interface(radio->intf);
-	}
-
-unlock:
-	mutex_unlock(&radio->disconnect_lock);
-
-done:
-	return retval;
-}
-
-
-/*
- * si470x_fops - file operations interface
- */
-static const struct v4l2_file_operations si470x_fops = {
-	.owner		= THIS_MODULE,
-	.read		= si470x_fops_read,
-	.poll		= si470x_fops_poll,
-	.ioctl		= video_ioctl2,
-	.open		= si470x_fops_open,
-	.release	= si470x_fops_release,
-};
-
-
-
-/**************************************************************************
- * Video4Linux Interface
- **************************************************************************/
-
-/*
- * si470x_v4l2_queryctrl - query control
- */
-static struct v4l2_queryctrl si470x_v4l2_queryctrl[] = {
-	{
-		.id		= V4L2_CID_AUDIO_VOLUME,
-		.type		= V4L2_CTRL_TYPE_INTEGER,
-		.name		= "Volume",
-		.minimum	= 0,
-		.maximum	= 15,
-		.step		= 1,
-		.default_value	= 15,
-	},
-	{
-		.id		= V4L2_CID_AUDIO_MUTE,
-		.type		= V4L2_CTRL_TYPE_BOOLEAN,
-		.name		= "Mute",
-		.minimum	= 0,
-		.maximum	= 1,
-		.step		= 1,
-		.default_value	= 1,
-	},
-};
-
-
-/*
- * si470x_vidioc_querycap - query device capabilities
- */
-static int si470x_vidioc_querycap(struct file *file, void *priv,
-		struct v4l2_capability *capability)
-{
-	struct si470x_device *radio = video_drvdata(file);
-
-	strlcpy(capability->driver, DRIVER_NAME, sizeof(capability->driver));
-	strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
-	usb_make_path(radio->usbdev, capability->bus_info, sizeof(capability->bus_info));
-	capability->version = DRIVER_KERNEL_VERSION;
-	capability->capabilities = V4L2_CAP_HW_FREQ_SEEK |
-		V4L2_CAP_TUNER | V4L2_CAP_RADIO;
-
-	return 0;
-}
-
-
-/*
- * si470x_vidioc_queryctrl - enumerate control items
- */
-static int si470x_vidioc_queryctrl(struct file *file, void *priv,
-		struct v4l2_queryctrl *qc)
-{
-	unsigned char i = 0;
-	int retval = -EINVAL;
-
-	/* abort if qc->id is below V4L2_CID_BASE */
-	if (qc->id < V4L2_CID_BASE)
-		goto done;
-
-	/* search video control */
-	for (i = 0; i < ARRAY_SIZE(si470x_v4l2_queryctrl); i++) {
-		if (qc->id == si470x_v4l2_queryctrl[i].id) {
-			memcpy(qc, &(si470x_v4l2_queryctrl[i]), sizeof(*qc));
-			retval = 0; /* found */
-			break;
-		}
-	}
-
-	/* disable unsupported base controls */
-	/* to satisfy kradio and such apps */
-	if ((retval == -EINVAL) && (qc->id < V4L2_CID_LASTP1)) {
-		qc->flags = V4L2_CTRL_FLAG_DISABLED;
-		retval = 0;
-	}
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": query controls failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_g_ctrl - get the value of a control
- */
-static int si470x_vidioc_g_ctrl(struct file *file, void *priv,
-		struct v4l2_control *ctrl)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-
-	switch (ctrl->id) {
-	case V4L2_CID_AUDIO_VOLUME:
-		ctrl->value = radio->registers[SYSCONFIG2] &
-				SYSCONFIG2_VOLUME;
-		break;
-	case V4L2_CID_AUDIO_MUTE:
-		ctrl->value = ((radio->registers[POWERCFG] &
-				POWERCFG_DMUTE) == 0) ? 1 : 0;
-		break;
-	default:
-		retval = -EINVAL;
-	}
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": get control failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_s_ctrl - set the value of a control
- */
-static int si470x_vidioc_s_ctrl(struct file *file, void *priv,
-		struct v4l2_control *ctrl)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-
-	switch (ctrl->id) {
-	case V4L2_CID_AUDIO_VOLUME:
-		radio->registers[SYSCONFIG2] &= ~SYSCONFIG2_VOLUME;
-		radio->registers[SYSCONFIG2] |= ctrl->value;
-		retval = si470x_set_register(radio, SYSCONFIG2);
-		break;
-	case V4L2_CID_AUDIO_MUTE:
-		if (ctrl->value == 1)
-			radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
-		else
-			radio->registers[POWERCFG] |= POWERCFG_DMUTE;
-		retval = si470x_set_register(radio, POWERCFG);
-		break;
-	default:
-		retval = -EINVAL;
-	}
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": set control failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_g_audio - get audio attributes
- */
-static int si470x_vidioc_g_audio(struct file *file, void *priv,
-		struct v4l2_audio *audio)
-{
-	/* driver constants */
-	audio->index = 0;
-	strcpy(audio->name, "Radio");
-	audio->capability = V4L2_AUDCAP_STEREO;
-	audio->mode = 0;
-
-	return 0;
-}
-
-
-/*
- * si470x_vidioc_g_tuner - get tuner attributes
- */
-static int si470x_vidioc_g_tuner(struct file *file, void *priv,
-		struct v4l2_tuner *tuner)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-	if (tuner->index != 0) {
-		retval = -EINVAL;
-		goto done;
-	}
-
-	retval = si470x_get_register(radio, STATUSRSSI);
-	if (retval < 0)
-		goto done;
-
-	/* driver constants */
-	strcpy(tuner->name, "FM");
-	tuner->type = V4L2_TUNER_RADIO;
-	tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
-
-	/* range limits */
-	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
-	/* 0: 87.5 - 108 MHz (USA, Europe, default) */
-	default:
-		tuner->rangelow  =  87.5 * FREQ_MUL;
-		tuner->rangehigh = 108   * FREQ_MUL;
-		break;
-	/* 1: 76   - 108 MHz (Japan wide band) */
-	case 1 :
-		tuner->rangelow  =  76   * FREQ_MUL;
-		tuner->rangehigh = 108   * FREQ_MUL;
-		break;
-	/* 2: 76   -  90 MHz (Japan) */
-	case 2 :
-		tuner->rangelow  =  76   * FREQ_MUL;
-		tuner->rangehigh =  90   * FREQ_MUL;
-		break;
-	};
-
-	/* stereo indicator == stereo (instead of mono) */
-	if ((radio->registers[STATUSRSSI] & STATUSRSSI_ST) == 0)
-		tuner->rxsubchans = V4L2_TUNER_SUB_MONO;
-	else
-		tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
-
-	/* mono/stereo selector */
-	if ((radio->registers[POWERCFG] & POWERCFG_MONO) == 0)
-		tuner->audmode = V4L2_TUNER_MODE_STEREO;
-	else
-		tuner->audmode = V4L2_TUNER_MODE_MONO;
-
-	/* min is worst, max is best; signal:0..0xffff; rssi: 0..0xff */
-	/* measured in units of dbµV in 1 db increments (max at ~75 dbµV) */
-	tuner->signal = (radio->registers[STATUSRSSI] & STATUSRSSI_RSSI);
-	/* the ideal factor is 0xffff/75 = 873,8 */
-	tuner->signal = (tuner->signal * 873) + (8 * tuner->signal / 10);
-
-	/* automatic frequency control: -1: freq to low, 1 freq to high */
-	/* AFCRL does only indicate that freq. differs, not if too low/high */
-	tuner->afc = (radio->registers[STATUSRSSI] & STATUSRSSI_AFCRL) ? 1 : 0;
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": get tuner failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_s_tuner - set tuner attributes
- */
-static int si470x_vidioc_s_tuner(struct file *file, void *priv,
-		struct v4l2_tuner *tuner)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = -EINVAL;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-	if (tuner->index != 0)
-		goto done;
-
-	/* mono/stereo selector */
-	switch (tuner->audmode) {
-	case V4L2_TUNER_MODE_MONO:
-		radio->registers[POWERCFG] |= POWERCFG_MONO;  /* force mono */
-		break;
-	case V4L2_TUNER_MODE_STEREO:
-		radio->registers[POWERCFG] &= ~POWERCFG_MONO; /* try stereo */
-		break;
-	default:
-		goto done;
-	}
-
-	retval = si470x_set_register(radio, POWERCFG);
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": set tuner failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_g_frequency - get tuner or modulator radio frequency
- */
-static int si470x_vidioc_g_frequency(struct file *file, void *priv,
-		struct v4l2_frequency *freq)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-	if (freq->tuner != 0) {
-		retval = -EINVAL;
-		goto done;
-	}
-
-	freq->type = V4L2_TUNER_RADIO;
-	retval = si470x_get_freq(radio, &freq->frequency);
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": get frequency failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_s_frequency - set tuner or modulator radio frequency
- */
-static int si470x_vidioc_s_frequency(struct file *file, void *priv,
-		struct v4l2_frequency *freq)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-	if (freq->tuner != 0) {
-		retval = -EINVAL;
-		goto done;
-	}
-
-	retval = si470x_set_freq(radio, freq->frequency);
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": set frequency failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_s_hw_freq_seek - set hardware frequency seek
- */
-static int si470x_vidioc_s_hw_freq_seek(struct file *file, void *priv,
-		struct v4l2_hw_freq_seek *seek)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-	if (seek->tuner != 0) {
-		retval = -EINVAL;
-		goto done;
-	}
-
-	retval = si470x_set_seek(radio, seek->wrap_around, seek->seek_upward);
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": set hardware frequency seek failed with %d\n",
-			retval);
-	return retval;
-}
-
-
-/*
- * si470x_ioctl_ops - video device ioctl operations
- */
-static const struct v4l2_ioctl_ops si470x_ioctl_ops = {
-	.vidioc_querycap	= si470x_vidioc_querycap,
-	.vidioc_queryctrl	= si470x_vidioc_queryctrl,
-	.vidioc_g_ctrl		= si470x_vidioc_g_ctrl,
-	.vidioc_s_ctrl		= si470x_vidioc_s_ctrl,
-	.vidioc_g_audio		= si470x_vidioc_g_audio,
-	.vidioc_g_tuner		= si470x_vidioc_g_tuner,
-	.vidioc_s_tuner		= si470x_vidioc_s_tuner,
-	.vidioc_g_frequency	= si470x_vidioc_g_frequency,
-	.vidioc_s_frequency	= si470x_vidioc_s_frequency,
-	.vidioc_s_hw_freq_seek	= si470x_vidioc_s_hw_freq_seek,
-};
-
-
-/*
- * si470x_viddev_template - video device interface
- */
-static struct video_device si470x_viddev_template = {
-	.fops			= &si470x_fops,
-	.name			= DRIVER_NAME,
-	.release		= video_device_release,
-	.ioctl_ops		= &si470x_ioctl_ops,
-};
-
-
-
-/**************************************************************************
- * USB Interface
- **************************************************************************/
-
-/*
- * si470x_usb_driver_probe - probe for the device
- */
-static int si470x_usb_driver_probe(struct usb_interface *intf,
-		const struct usb_device_id *id)
-{
-	struct si470x_device *radio;
-	int retval = 0;
-
-	/* private data allocation and initialization */
-	radio = kzalloc(sizeof(struct si470x_device), GFP_KERNEL);
-	if (!radio) {
-		retval = -ENOMEM;
-		goto err_initial;
-	}
-	radio->users = 0;
-	radio->disconnected = 0;
-	radio->usbdev = interface_to_usbdev(intf);
-	radio->intf = intf;
-	mutex_init(&radio->disconnect_lock);
-	mutex_init(&radio->lock);
-
-	/* video device allocation and initialization */
-	radio->videodev = video_device_alloc();
-	if (!radio->videodev) {
-		retval = -ENOMEM;
-		goto err_radio;
-	}
-	memcpy(radio->videodev, &si470x_viddev_template,
-			sizeof(si470x_viddev_template));
-	video_set_drvdata(radio->videodev, radio);
-
-	/* show some infos about the specific si470x device */
-	if (si470x_get_all_registers(radio) < 0) {
-		retval = -EIO;
-		goto err_all;
-	}
-	printk(KERN_INFO DRIVER_NAME ": DeviceID=0x%4.4hx ChipID=0x%4.4hx\n",
-			radio->registers[DEVICEID], radio->registers[CHIPID]);
-
-	/* get software and hardware versions */
-	if (si470x_get_scratch_page_versions(radio) < 0) {
-		retval = -EIO;
-		goto err_all;
-	}
-	printk(KERN_INFO DRIVER_NAME
-			": software version %d, hardware version %d\n",
-			radio->software_version, radio->hardware_version);
-
-	/* check if device and firmware is current */
-	if ((radio->registers[CHIPID] & CHIPID_FIRMWARE)
-			< RADIO_SW_VERSION_CURRENT) {
-		printk(KERN_WARNING DRIVER_NAME
-			": This driver is known to work with "
-			"firmware version %hu,\n", RADIO_SW_VERSION_CURRENT);
-		printk(KERN_WARNING DRIVER_NAME
-			": but the device has firmware version %hu.\n",
-			radio->registers[CHIPID] & CHIPID_FIRMWARE);
-		printk(KERN_WARNING DRIVER_NAME
-			": If you have some trouble using this driver,\n");
-		printk(KERN_WARNING DRIVER_NAME
-			": please report to V4L ML at "
-			"video4linux-list@redhat.com\n");
-	}
-
-	/* set initial frequency */
-	si470x_set_freq(radio, 87.5 * FREQ_MUL); /* available in all regions */
-
-	/* set led to connect state */
-	si470x_set_led_state(radio, BLINK_GREEN_LED);
-
-	/* rds buffer allocation */
-	radio->buf_size = rds_buf * 3;
-	radio->buffer = kmalloc(radio->buf_size, GFP_KERNEL);
-	if (!radio->buffer) {
-		retval = -EIO;
-		goto err_all;
-	}
-
-	/* rds buffer configuration */
-	radio->wr_index = 0;
-	radio->rd_index = 0;
-	init_waitqueue_head(&radio->read_queue);
-
-	/* prepare rds work function */
-	INIT_DELAYED_WORK(&radio->work, si470x_work);
-
-	/* register video device */
-	retval = video_register_device(radio->videodev, VFL_TYPE_RADIO, radio_nr);
-	if (retval) {
-		printk(KERN_WARNING DRIVER_NAME
-				": Could not register video device\n");
-		goto err_all;
-	}
-	usb_set_intfdata(intf, radio);
-
-	return 0;
-err_all:
-	video_device_release(radio->videodev);
-	kfree(radio->buffer);
-err_radio:
-	kfree(radio);
-err_initial:
-	return retval;
-}
-
-
-/*
- * si470x_usb_driver_suspend - suspend the device
- */
-static int si470x_usb_driver_suspend(struct usb_interface *intf,
-		pm_message_t message)
-{
-	struct si470x_device *radio = usb_get_intfdata(intf);
-
-	printk(KERN_INFO DRIVER_NAME ": suspending now...\n");
-
-	cancel_delayed_work_sync(&radio->work);
-
-	return 0;
-}
-
-
-/*
- * si470x_usb_driver_resume - resume the device
- */
-static int si470x_usb_driver_resume(struct usb_interface *intf)
-{
-	struct si470x_device *radio = usb_get_intfdata(intf);
-
-	printk(KERN_INFO DRIVER_NAME ": resuming now...\n");
-
-	mutex_lock(&radio->lock);
-	if (radio->users && radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS)
-		schedule_delayed_work(&radio->work,
-			msecs_to_jiffies(rds_poll_time));
-	mutex_unlock(&radio->lock);
-
-	return 0;
-}
-
-
-/*
- * si470x_usb_driver_disconnect - disconnect the device
- */
-static void si470x_usb_driver_disconnect(struct usb_interface *intf)
-{
-	struct si470x_device *radio = usb_get_intfdata(intf);
-
-	mutex_lock(&radio->disconnect_lock);
-	radio->disconnected = 1;
-	cancel_delayed_work_sync(&radio->work);
-	usb_set_intfdata(intf, NULL);
-	if (radio->users == 0) {
-		/* set led to disconnect state */
-		si470x_set_led_state(radio, BLINK_ORANGE_LED);
-
-		video_unregister_device(radio->videodev);
-		kfree(radio->buffer);
-		kfree(radio);
-	}
-	mutex_unlock(&radio->disconnect_lock);
-}
-
-
-/*
- * si470x_usb_driver - usb driver interface
- */
-static struct usb_driver si470x_usb_driver = {
-	.name			= DRIVER_NAME,
-	.probe			= si470x_usb_driver_probe,
-	.disconnect		= si470x_usb_driver_disconnect,
-	.suspend		= si470x_usb_driver_suspend,
-	.resume			= si470x_usb_driver_resume,
-	.id_table		= si470x_usb_driver_id_table,
-	.supports_autosuspend	= 1,
-};
-
-
-
-/**************************************************************************
- * Module Interface
- **************************************************************************/
-
-/*
- * si470x_module_init - module init
- */
-static int __init si470x_module_init(void)
-{
-	printk(KERN_INFO DRIVER_DESC ", Version " DRIVER_VERSION "\n");
-	return usb_register(&si470x_usb_driver);
-}
-
-
-/*
- * si470x_module_exit - module exit
- */
-static void __exit si470x_module_exit(void)
-{
-	usb_deregister(&si470x_usb_driver);
-}
-
-
-module_init(si470x_module_init);
-module_exit(si470x_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_VERSION(DRIVER_VERSION);
diff --git a/linux/drivers/media/radio/radio-si4713.c b/linux/drivers/media/radio/radio-si4713.c
new file mode 100644
index 000000000..65c14b704
--- /dev/null
+++ b/linux/drivers/media/radio/radio-si4713.c
@@ -0,0 +1,367 @@
+/*
+ * drivers/media/radio/radio-si4713.c
+ *
+ * Platform Driver for Silicon Labs Si4713 FM Radio Transmitter:
+ *
+ * Copyright (c) 2008 Instituto Nokia de Tecnologia - INdT
+ * Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/version.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/radio-si4713.h>
+
+/* module parameters */
+static int radio_nr = -1;	/* radio device minor (-1 ==> auto assign) */
+module_param(radio_nr, int, 0);
+MODULE_PARM_DESC(radio_nr,
+		 "Minor number for radio device (-1 ==> auto assign)");
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Eduardo Valentin <eduardo.valentin@nokia.com>");
+MODULE_DESCRIPTION("Platform driver for Si4713 FM Radio Transmitter");
+MODULE_VERSION("0.0.1");
+
+/* Driver state struct */
+struct radio_si4713_device {
+	struct v4l2_device		v4l2_dev;
+	struct video_device		*radio_dev;
+};
+
+/* radio_si4713_fops - file operations interface */
+static const struct v4l2_file_operations radio_si4713_fops = {
+	.owner		= THIS_MODULE,
+	.ioctl		= video_ioctl2,
+};
+
+/* Video4Linux Interface */
+static int radio_si4713_fill_audout(struct v4l2_audioout *vao)
+{
+	/* TODO: check presence of audio output */
+	strlcpy(vao->name, "FM Modulator Audio Out", 32);
+
+	return 0;
+}
+
+static int radio_si4713_enumaudout(struct file *file, void *priv,
+						struct v4l2_audioout *vao)
+{
+	return radio_si4713_fill_audout(vao);
+}
+
+static int radio_si4713_g_audout(struct file *file, void *priv,
+					struct v4l2_audioout *vao)
+{
+	int rval = radio_si4713_fill_audout(vao);
+
+	vao->index = 0;
+
+	return rval;
+}
+
+static int radio_si4713_s_audout(struct file *file, void *priv,
+					struct v4l2_audioout *vao)
+{
+	return vao->index ? -EINVAL : 0;
+}
+
+/* radio_si4713_querycap - query device capabilities */
+static int radio_si4713_querycap(struct file *file, void *priv,
+					struct v4l2_capability *capability)
+{
+	struct radio_si4713_device *rsdev;
+
+	rsdev = video_get_drvdata(video_devdata(file));
+
+	strlcpy(capability->driver, "radio-si4713", sizeof(capability->driver));
+	strlcpy(capability->card, "Silicon Labs Si4713 Modulator",
+				sizeof(capability->card));
+	capability->capabilities = V4L2_CAP_MODULATOR | V4L2_CAP_RDS_OUTPUT;
+
+	return 0;
+}
+
+/* radio_si4713_queryctrl - enumerate control items */
+static int radio_si4713_queryctrl(struct file *file, void *priv,
+						struct v4l2_queryctrl *qc)
+{
+	/* Must be sorted from low to high control ID! */
+	static const u32 user_ctrls[] = {
+		V4L2_CID_USER_CLASS,
+		V4L2_CID_AUDIO_MUTE,
+		0
+	};
+
+	/* Must be sorted from low to high control ID! */
+	static const u32 fmtx_ctrls[] = {
+		V4L2_CID_FM_TX_CLASS,
+		V4L2_CID_RDS_TX_DEVIATION,
+		V4L2_CID_RDS_TX_PI,
+		V4L2_CID_RDS_TX_PTY,
+		V4L2_CID_RDS_TX_PS_NAME,
+		V4L2_CID_RDS_TX_RADIO_TEXT,
+		V4L2_CID_AUDIO_LIMITER_ENABLED,
+		V4L2_CID_AUDIO_LIMITER_RELEASE_TIME,
+		V4L2_CID_AUDIO_LIMITER_DEVIATION,
+		V4L2_CID_AUDIO_COMPRESSION_ENABLED,
+		V4L2_CID_AUDIO_COMPRESSION_GAIN,
+		V4L2_CID_AUDIO_COMPRESSION_THRESHOLD,
+		V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME,
+		V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME,
+		V4L2_CID_PILOT_TONE_ENABLED,
+		V4L2_CID_PILOT_TONE_DEVIATION,
+		V4L2_CID_PILOT_TONE_FREQUENCY,
+		V4L2_CID_TUNE_PREEMPHASIS,
+		V4L2_CID_TUNE_POWER_LEVEL,
+		V4L2_CID_TUNE_ANTENNA_CAPACITOR,
+		0
+	};
+	static const u32 *ctrl_classes[] = {
+		user_ctrls,
+		fmtx_ctrls,
+		NULL
+	};
+	struct radio_si4713_device *rsdev;
+
+	rsdev = video_get_drvdata(video_devdata(file));
+
+	qc->id = v4l2_ctrl_next(ctrl_classes, qc->id);
+	if (qc->id == 0)
+		return -EINVAL;
+
+	if (qc->id == V4L2_CID_USER_CLASS || qc->id == V4L2_CID_FM_TX_CLASS)
+		return v4l2_ctrl_query_fill(qc, 0, 0, 0, 0);
+
+	return v4l2_device_call_until_err(&rsdev->v4l2_dev, 0, core,
+						queryctrl, qc);
+}
+
+/*
+ * v4l2 ioctl call backs.
+ * we are just a wrapper for v4l2_sub_devs.
+ */
+static inline struct v4l2_device *get_v4l2_dev(struct file *file)
+{
+	return &((struct radio_si4713_device *)video_drvdata(file))->v4l2_dev;
+}
+
+static int radio_si4713_g_ext_ctrls(struct file *file, void *p,
+						struct v4l2_ext_controls *vecs)
+{
+	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core,
+							g_ext_ctrls, vecs);
+}
+
+static int radio_si4713_s_ext_ctrls(struct file *file, void *p,
+						struct v4l2_ext_controls *vecs)
+{
+	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core,
+							s_ext_ctrls, vecs);
+}
+
+static int radio_si4713_g_ctrl(struct file *file, void *p,
+						struct v4l2_control *vc)
+{
+	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core,
+							g_ctrl, vc);
+}
+
+static int radio_si4713_s_ctrl(struct file *file, void *p,
+						struct v4l2_control *vc)
+{
+	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core,
+							s_ctrl, vc);
+}
+
+static int radio_si4713_g_modulator(struct file *file, void *p,
+						struct v4l2_modulator *vm)
+{
+	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner,
+							g_modulator, vm);
+}
+
+static int radio_si4713_s_modulator(struct file *file, void *p,
+						struct v4l2_modulator *vm)
+{
+	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner,
+							s_modulator, vm);
+}
+
+static int radio_si4713_g_frequency(struct file *file, void *p,
+						struct v4l2_frequency *vf)
+{
+	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner,
+							g_frequency, vf);
+}
+
+static int radio_si4713_s_frequency(struct file *file, void *p,
+						struct v4l2_frequency *vf)
+{
+	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, tuner,
+							s_frequency, vf);
+}
+
+static long radio_si4713_default(struct file *file, void *p, int cmd, void *arg)
+{
+	return v4l2_device_call_until_err(get_v4l2_dev(file), 0, core,
+							ioctl, cmd, arg);
+}
+
+static struct v4l2_ioctl_ops radio_si4713_ioctl_ops = {
+	.vidioc_enumaudout	= radio_si4713_enumaudout,
+	.vidioc_g_audout	= radio_si4713_g_audout,
+	.vidioc_s_audout	= radio_si4713_s_audout,
+	.vidioc_querycap	= radio_si4713_querycap,
+	.vidioc_queryctrl	= radio_si4713_queryctrl,
+	.vidioc_g_ext_ctrls	= radio_si4713_g_ext_ctrls,
+	.vidioc_s_ext_ctrls	= radio_si4713_s_ext_ctrls,
+	.vidioc_g_ctrl		= radio_si4713_g_ctrl,
+	.vidioc_s_ctrl		= radio_si4713_s_ctrl,
+	.vidioc_g_modulator	= radio_si4713_g_modulator,
+	.vidioc_s_modulator	= radio_si4713_s_modulator,
+	.vidioc_g_frequency	= radio_si4713_g_frequency,
+	.vidioc_s_frequency	= radio_si4713_s_frequency,
+	.vidioc_default		= radio_si4713_default,
+};
+
+/* radio_si4713_vdev_template - video device interface */
+static struct video_device radio_si4713_vdev_template = {
+	.fops			= &radio_si4713_fops,
+	.name			= "radio-si4713",
+	.release		= video_device_release,
+	.ioctl_ops		= &radio_si4713_ioctl_ops,
+};
+
+/* Platform driver interface */
+/* radio_si4713_pdriver_probe - probe for the device */
+static int radio_si4713_pdriver_probe(struct platform_device *pdev)
+{
+	struct radio_si4713_platform_data *pdata = pdev->dev.platform_data;
+	struct radio_si4713_device *rsdev;
+	struct i2c_adapter *adapter;
+	struct v4l2_subdev *sd;
+	int rval = 0;
+
+	if (!pdata) {
+		dev_err(&pdev->dev, "Cannot proceed without platform data.\n");
+		rval = -EINVAL;
+		goto exit;
+	}
+
+	rsdev = kzalloc(sizeof *rsdev, GFP_KERNEL);
+	if (!rsdev) {
+		dev_err(&pdev->dev, "Failed to alloc video device.\n");
+		rval = -ENOMEM;
+		goto exit;
+	}
+
+	rval = v4l2_device_register(&pdev->dev, &rsdev->v4l2_dev);
+	if (rval) {
+		dev_err(&pdev->dev, "Failed to register v4l2 device.\n");
+		goto free_rsdev;
+	}
+
+	adapter = i2c_get_adapter(pdata->i2c_bus);
+	if (!adapter) {
+		dev_err(&pdev->dev, "Cannot get i2c adapter %d\n",
+							pdata->i2c_bus);
+		rval = -ENODEV;
+		goto unregister_v4l2_dev;
+	}
+
+	sd = v4l2_i2c_new_subdev_board(&rsdev->v4l2_dev, adapter, "si4713_i2c",
+					pdata->subdev_board_info, NULL);
+	if (!sd) {
+		dev_err(&pdev->dev, "Cannot get v4l2 subdevice\n");
+		rval = -ENODEV;
+		goto unregister_v4l2_dev;
+	}
+
+	rsdev->radio_dev = video_device_alloc();
+	if (!rsdev->radio_dev) {
+		dev_err(&pdev->dev, "Failed to alloc video device.\n");
+		rval = -ENOMEM;
+		goto unregister_v4l2_dev;
+	}
+
+	memcpy(rsdev->radio_dev, &radio_si4713_vdev_template,
+			sizeof(radio_si4713_vdev_template));
+	video_set_drvdata(rsdev->radio_dev, rsdev);
+	if (video_register_device(rsdev->radio_dev, VFL_TYPE_RADIO, radio_nr)) {
+		dev_err(&pdev->dev, "Could not register video device.\n");
+		rval = -EIO;
+		goto free_vdev;
+	}
+	dev_info(&pdev->dev, "New device successfully probed\n");
+
+	goto exit;
+
+free_vdev:
+	video_device_release(rsdev->radio_dev);
+unregister_v4l2_dev:
+	v4l2_device_unregister(&rsdev->v4l2_dev);
+free_rsdev:
+	kfree(rsdev);
+exit:
+	return rval;
+}
+
+/* radio_si4713_pdriver_remove - remove the device */
+static int __exit radio_si4713_pdriver_remove(struct platform_device *pdev)
+{
+	struct v4l2_device *v4l2_dev = platform_get_drvdata(pdev);
+	struct radio_si4713_device *rsdev = container_of(v4l2_dev,
+						struct radio_si4713_device,
+						v4l2_dev);
+
+	video_unregister_device(rsdev->radio_dev);
+	v4l2_device_unregister(&rsdev->v4l2_dev);
+	kfree(rsdev);
+
+	return 0;
+}
+
+static struct platform_driver radio_si4713_pdriver = {
+	.driver		= {
+		.name	= "radio-si4713",
+	},
+	.probe		= radio_si4713_pdriver_probe,
+	.remove         = __exit_p(radio_si4713_pdriver_remove),
+};
+
+/* Module Interface */
+static int __init radio_si4713_module_init(void)
+{
+	return platform_driver_register(&radio_si4713_pdriver);
+}
+
+static void __exit radio_si4713_module_exit(void)
+{
+	platform_driver_unregister(&radio_si4713_pdriver);
+}
+
+module_init(radio_si4713_module_init);
+module_exit(radio_si4713_module_exit);
+
diff --git a/linux/drivers/media/radio/radio-tea5764.c b/linux/drivers/media/radio/radio-tea5764.c
index 9194a70aa..83a5aff7b 100644
--- a/linux/drivers/media/radio/radio-tea5764.c
+++ b/linux/drivers/media/radio/radio-tea5764.c
@@ -326,7 +326,9 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 	v->rangehigh  = FREQ_MAX * FREQ_MUL;
 	v->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
 	if (r->tunchk & TEA5764_TUNCHK_STEREO)
-			v->rxsubchans = V4L2_TUNER_SUB_STEREO;
+		v->rxsubchans = V4L2_TUNER_SUB_STEREO;
+	else
+		v->rxsubchans = V4L2_TUNER_SUB_MONO;
 	v->audmode = tea5764_get_audout_mode(radio);
 	v->signal = TEA5764_TUNCHK_LEVEL(r->tunchk) * 0xffff / 0xf;
 	v->afc = TEA5764_TUNCHK_IFCNT(r->tunchk);
diff --git a/linux/drivers/media/radio/radio-terratec.c b/linux/drivers/media/radio/radio-terratec.c
index 1c2b4db2d..3e5436faf 100644
--- a/linux/drivers/media/radio/radio-terratec.c
+++ b/linux/drivers/media/radio/radio-terratec.c
@@ -27,17 +27,30 @@
 #include <linux/module.h>	/* Modules 			*/
 #include <linux/init.h>		/* Initdata			*/
 #include <linux/ioport.h>	/* request_region		*/
-#include <linux/delay.h>	/* udelay			*/
-#include <asm/io.h>		/* outb, outb_p			*/
-#include <asm/uaccess.h>	/* copy to/from user		*/
-#include "compat.h"
 #include <linux/videodev2.h>	/* kernel radio structs		*/
-#include <media/v4l2-common.h>
+#include <linux/mutex.h>
+#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
+#include <linux/io.h>		/* outb, outb_p			*/
+#include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
-#include <linux/spinlock.h>
+#include "compat.h"
 
-#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
-#define RADIO_VERSION KERNEL_VERSION(0,0,2)
+MODULE_AUTHOR("R.OFFERMANNS & others");
+MODULE_DESCRIPTION("A driver for the TerraTec ActiveRadio Standalone radio card.");
+MODULE_LICENSE("GPL");
+
+#ifndef CONFIG_RADIO_TERRATEC_PORT
+#define CONFIG_RADIO_TERRATEC_PORT 0x590
+#endif
+
+static int io = CONFIG_RADIO_TERRATEC_PORT;
+static int radio_nr = -1;
+
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, "I/O address of the TerraTec ActiveRadio card (0x590 or 0x591)");
+module_param(radio_nr, int, 0);
+
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
 
 static struct v4l2_queryctrl radio_qctrl[] = {
 	{
@@ -58,13 +71,6 @@ static struct v4l2_queryctrl radio_qctrl[] = {
 	}
 };
 
-#ifndef CONFIG_RADIO_TERRATEC_PORT
-#define CONFIG_RADIO_TERRATEC_PORT 0x590
-#endif
-
-/**************** this ones are for the terratec *******************/
-#define BASEPORT 	0x590
-#define VOLPORT 	0x591
 #define WRT_DIS 	0x00
 #define CLK_OFF		0x00
 #define IIC_DATA	0x01
@@ -72,138 +78,124 @@ static struct v4l2_queryctrl radio_qctrl[] = {
 #define DATA		0x04
 #define CLK_ON 		0x08
 #define WRT_EN		0x10
-/*******************************************************************/
-
-static int io = CONFIG_RADIO_TERRATEC_PORT;
-static int radio_nr = -1;
-static spinlock_t lock;
 
-struct tt_device
+struct terratec
 {
-	unsigned long in_use;
-	int port;
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	int io;
 	int curvol;
 	unsigned long curfreq;
 	int muted;
+	struct mutex lock;
 };
 
+static struct terratec terratec_card;
 
 /* local things */
 
-static void cardWriteVol(int volume)
+static void tt_write_vol(struct terratec *tt, int volume)
 {
 	int i;
-	volume = volume+(volume * 32); // change both channels
-	spin_lock(&lock);
-	for (i=0;i<8;i++)
-	{
-		if (volume & (0x80>>i))
-			outb(0x80, VOLPORT);
-		else outb(0x00, VOLPORT);
+
+	volume = volume + (volume * 32); /* change both channels */
+	mutex_lock(&tt->lock);
+	for (i = 0; i < 8; i++) {
+		if (volume & (0x80 >> i))
+			outb(0x80, tt->io + 1);
+		else
+			outb(0x00, tt->io + 1);
 	}
-	spin_unlock(&lock);
+	mutex_unlock(&tt->lock);
 }
 
 
 
-static void tt_mute(struct tt_device *dev)
+static void tt_mute(struct terratec *tt)
 {
-	dev->muted = 1;
-	cardWriteVol(0);
+	tt->muted = 1;
+	tt_write_vol(tt, 0);
 }
 
-static int tt_setvol(struct tt_device *dev, int vol)
+static int tt_setvol(struct terratec *tt, int vol)
 {
-
-//	printk(KERN_ERR "setvol called, vol = %d\n", vol);
-
-	if(vol == dev->curvol) {	/* requested volume = current */
-		if (dev->muted) {	/* user is unmuting the card  */
-			dev->muted = 0;
-			cardWriteVol(vol);	/* enable card */
+	if (vol == tt->curvol) {	/* requested volume = current */
+		if (tt->muted) {	/* user is unmuting the card  */
+			tt->muted = 0;
+			tt_write_vol(tt, vol);	/* enable card */
 		}
-
 		return 0;
 	}
 
-	if(vol == 0) {			/* volume = 0 means mute the card */
-		cardWriteVol(0);	/* "turn off card" by setting vol to 0 */
-		dev->curvol = vol;	/* track the volume state!	*/
+	if (vol == 0) {			/* volume = 0 means mute the card */
+		tt_write_vol(tt, 0);	/* "turn off card" by setting vol to 0 */
+		tt->curvol = vol;	/* track the volume state!	*/
 		return 0;
 	}
 
-	dev->muted = 0;
-
-	cardWriteVol(vol);
-
-	dev->curvol = vol;
-
+	tt->muted = 0;
+	tt_write_vol(tt, vol);
+	tt->curvol = vol;
 	return 0;
-
 }
 
 
 /* this is the worst part in this driver */
 /* many more or less strange things are going on here, but hey, it works :) */
 
-static int tt_setfreq(struct tt_device *dev, unsigned long freq1)
+static int tt_setfreq(struct terratec *tt, unsigned long freq1)
 {
 	int freq;
 	int i;
 	int p;
 	int  temp;
 	long rest;
-
 	unsigned char buffer[25];		/* we have to bit shift 25 registers */
-	freq = freq1/160;			/* convert the freq. to a nice to handle value */
-	for(i=24;i>-1;i--)
-		buffer[i]=0;
 
-	rest = freq*10+10700;		/* i once had understood what is going on here */
+	mutex_lock(&tt->lock);
+
+	tt->curfreq = freq1;
+
+	freq = freq1 / 160;			/* convert the freq. to a nice to handle value */
+	memset(buffer, 0, sizeof(buffer));
+
+	rest = freq * 10 + 10700;	/* I once had understood what is going on here */
 					/* maybe some wise guy (friedhelm?) can comment this stuff */
-	i=13;
-	p=10;
-	temp=102400;
-	while (rest!=0)
-	{
-		if (rest%temp  == rest)
+	i = 13;
+	p = 10;
+	temp = 102400;
+	while (rest != 0) {
+		if (rest % temp  == rest)
 			buffer[i] = 0;
-		else
-		{
+		else {
 			buffer[i] = 1;
-			rest = rest-temp;
+			rest = rest - temp;
 		}
 		i--;
 		p--;
-		temp = temp/2;
+		temp = temp / 2;
 	}
 
-	spin_lock(&lock);
-
-	for (i=24;i>-1;i--)			/* bit shift the values to the radiocard */
-	{
-		if (buffer[i]==1)
-		{
-			outb(WRT_EN|DATA, BASEPORT);
-			outb(WRT_EN|DATA|CLK_ON  , BASEPORT);
-			outb(WRT_EN|DATA, BASEPORT);
-		}
-		else
-		{
-			outb(WRT_EN|0x00, BASEPORT);
-			outb(WRT_EN|0x00|CLK_ON  , BASEPORT);
+	for (i = 24; i > -1; i--) {	/* bit shift the values to the radiocard */
+		if (buffer[i] == 1) {
+			outb(WRT_EN | DATA, tt->io);
+			outb(WRT_EN | DATA | CLK_ON, tt->io);
+			outb(WRT_EN | DATA, tt->io);
+		} else {
+			outb(WRT_EN | 0x00, tt->io);
+			outb(WRT_EN | 0x00 | CLK_ON, tt->io);
 		}
 	}
-	outb(0x00, BASEPORT);
+	outb(0x00, tt->io);
 
-	spin_unlock(&lock);
+	mutex_unlock(&tt->lock);
 
 	return 0;
 }
 
-static int tt_getsigstr(struct tt_device *dev)		/* TODO */
+static int tt_getsigstr(struct terratec *tt)
 {
-	if (inb(io) & 2)	/* bit set = no signal present	*/
+	if (inb(tt->io) & 2)	/* bit set = no signal present	*/
 		return 0;
 	return 1;		/* signal present		*/
 }
@@ -213,53 +205,50 @@ static int vidioc_querycap(struct file *file, void *priv,
 {
 	strlcpy(v->driver, "radio-terratec", sizeof(v->driver));
 	strlcpy(v->card, "ActiveRadio", sizeof(v->card));
-	sprintf(v->bus_info, "ISA");
+	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
 	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
 static int vidioc_g_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	struct tt_device *tt = video_drvdata(file);
+	struct terratec *tt = video_drvdata(file);
 
 	if (v->index > 0)
 		return -EINVAL;
 
-	strcpy(v->name, "FM");
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
-	v->rangelow = (87*16000);
-	v->rangehigh = (108*16000);
+	v->rangelow = 87 * 16000;
+	v->rangehigh = 108 * 16000;
 	v->rxsubchans = V4L2_TUNER_SUB_MONO;
 	v->capability = V4L2_TUNER_CAP_LOW;
 	v->audmode = V4L2_TUNER_MODE_MONO;
-	v->signal = 0xFFFF*tt_getsigstr(tt);
+	v->signal = 0xFFFF * tt_getsigstr(tt);
 	return 0;
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
-	return 0;
+	return v->index ? -EINVAL : 0;
 }
 
 static int vidioc_s_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct tt_device *tt = video_drvdata(file);
+	struct terratec *tt = video_drvdata(file);
 
-	tt->curfreq = f->frequency;
-	tt_setfreq(tt, tt->curfreq);
+	tt_setfreq(tt, f->frequency);
 	return 0;
 }
 
 static int vidioc_g_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct tt_device *tt = video_drvdata(file);
+	struct terratec *tt = video_drvdata(file);
 
 	f->type = V4L2_TUNER_RADIO;
 	f->frequency = tt->curfreq;
@@ -273,8 +262,7 @@ static int vidioc_queryctrl(struct file *file, void *priv,
 
 	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
 		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]),
-						sizeof(*qc));
+			memcpy(qc, &(radio_qctrl[i]), sizeof(*qc));
 			return 0;
 		}
 	}
@@ -284,7 +272,7 @@ static int vidioc_queryctrl(struct file *file, void *priv,
 static int vidioc_g_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct tt_device *tt = video_drvdata(file);
+	struct terratec *tt = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
@@ -303,7 +291,7 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 static int vidioc_s_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct tt_device *tt = video_drvdata(file);
+	struct terratec *tt = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
@@ -319,17 +307,6 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
 	return -EINVAL;
 }
 
-static int vidioc_g_audio(struct file *file, void *priv,
-					struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
-}
-
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 {
 	*i = 0;
@@ -338,36 +315,26 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
-	return 0;
+	return i ? -EINVAL : 0;
 }
 
-static int vidioc_s_audio(struct file *file, void *priv,
+static int vidioc_g_audio(struct file *file, void *priv,
 					struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
-static struct tt_device terratec_unit;
-
-static int terratec_exclusive_open(struct file *file)
-{
-	return test_and_set_bit(0, &terratec_unit.in_use) ? -EBUSY : 0;
-}
-
-static int terratec_exclusive_release(struct file *file)
+static int vidioc_s_audio(struct file *file, void *priv,
+					struct v4l2_audio *a)
 {
-	clear_bit(0, &terratec_unit.in_use);
-	return 0;
+	return a->index ? -EINVAL : 0;
 }
 
 static const struct v4l2_file_operations terratec_fops = {
 	.owner		= THIS_MODULE,
-	.open           = terratec_exclusive_open,
-	.release        = terratec_exclusive_release,
 	.ioctl		= video_ioctl2,
 };
 
@@ -386,60 +353,63 @@ static const struct v4l2_ioctl_ops terratec_ioctl_ops = {
 	.vidioc_s_input     = vidioc_s_input,
 };
 
-static struct video_device terratec_radio = {
-	.name		= "TerraTec ActiveRadio",
-	.fops           = &terratec_fops,
-	.ioctl_ops 	= &terratec_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
 static int __init terratec_init(void)
 {
-	if(io==-1)
-	{
-		printk(KERN_ERR "You must set an I/O address with io=0x???\n");
+	struct terratec *tt = &terratec_card;
+	struct v4l2_device *v4l2_dev = &tt->v4l2_dev;
+	int res;
+
+	strlcpy(v4l2_dev->name, "terratec", sizeof(v4l2_dev->name));
+	tt->io = io;
+	if (tt->io == -1) {
+		v4l2_err(v4l2_dev, "you must set an I/O address with io=0x590 or 0x591\n");
 		return -EINVAL;
 	}
-	if (!request_region(io, 2, "terratec"))
-	{
-		printk(KERN_ERR "TerraTec: port 0x%x already in use\n", io);
+	if (!request_region(tt->io, 2, "terratec")) {
+		v4l2_err(v4l2_dev, "port 0x%x already in use\n", io);
 		return -EBUSY;
 	}
 
-	video_set_drvdata(&terratec_radio, &terratec_unit);
+	res = v4l2_device_register(NULL, v4l2_dev);
+	if (res < 0) {
+		release_region(tt->io, 2);
+		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		return res;
+	}
+
+	strlcpy(tt->vdev.name, v4l2_dev->name, sizeof(tt->vdev.name));
+	tt->vdev.v4l2_dev = v4l2_dev;
+	tt->vdev.fops = &terratec_fops;
+	tt->vdev.ioctl_ops = &terratec_ioctl_ops;
+	tt->vdev.release = video_device_release_empty;
+	video_set_drvdata(&tt->vdev, tt);
 
-	spin_lock_init(&lock);
+	mutex_init(&tt->lock);
 
-	if (video_register_device(&terratec_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
-		release_region(io,2);
+	if (video_register_device(&tt->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(&tt->v4l2_dev);
+		release_region(tt->io, 2);
 		return -EINVAL;
 	}
 
-	printk(KERN_INFO "TERRATEC ActivRadio Standalone card driver.\n");
+	v4l2_info(v4l2_dev, "TERRATEC ActivRadio Standalone card driver.\n");
 
 	/* mute card - prevents noisy bootups */
-
-	/* this ensures that the volume is all the way down  */
-	cardWriteVol(0);
-	terratec_unit.curvol = 0;
-
+	tt_write_vol(tt, 0);
 	return 0;
 }
 
-MODULE_AUTHOR("R.OFFERMANNS & others");
-MODULE_DESCRIPTION("A driver for the TerraTec ActiveRadio Standalone radio card.");
-MODULE_LICENSE("GPL");
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the TerraTec ActiveRadio card (0x590 or 0x591)");
-module_param(radio_nr, int, 0);
-
-static void __exit terratec_cleanup_module(void)
+static void __exit terratec_exit(void)
 {
-	video_unregister_device(&terratec_radio);
-	release_region(io,2);
-	printk(KERN_INFO "TERRATEC ActivRadio Standalone card driver unloaded.\n");
+	struct terratec *tt = &terratec_card;
+	struct v4l2_device *v4l2_dev = &tt->v4l2_dev;
+
+	video_unregister_device(&tt->vdev);
+	v4l2_device_unregister(&tt->v4l2_dev);
+	release_region(tt->io, 2);
+	v4l2_info(v4l2_dev, "TERRATEC ActivRadio Standalone card driver unloaded.\n");
 }
 
 module_init(terratec_init);
-module_exit(terratec_cleanup_module);
+module_exit(terratec_exit);
 
diff --git a/linux/drivers/media/radio/radio-trust.c b/linux/drivers/media/radio/radio-trust.c
index 5ce7a9d1d..67a462d66 100644
--- a/linux/drivers/media/radio/radio-trust.c
+++ b/linux/drivers/media/radio/radio-trust.c
@@ -19,50 +19,16 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include "compat.h"
+#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
 #include <linux/videodev2.h>
-#include <media/v4l2-common.h>
+#include <linux/io.h>
+#include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
+#include "compat.h"
 
-#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
-#define RADIO_VERSION KERNEL_VERSION(0,0,2)
-
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	},{
-		.id            = V4L2_CID_AUDIO_VOLUME,
-		.name          = "Volume",
-		.minimum       = 0,
-		.maximum       = 65535,
-		.step          = 2048,
-		.default_value = 65535,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-	},{
-		.id            = V4L2_CID_AUDIO_BASS,
-		.name          = "Bass",
-		.minimum       = 0,
-		.maximum       = 65535,
-		.step          = 4370,
-		.default_value = 32768,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-	},{
-		.id            = V4L2_CID_AUDIO_TREBLE,
-		.name          = "Treble",
-		.minimum       = 0,
-		.maximum       = 65535,
-		.step          = 4370,
-		.default_value = 32768,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-	},
-};
+MODULE_AUTHOR("Eric Lammerts, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
+MODULE_DESCRIPTION("A driver for the Trust FM Radio card.");
+MODULE_LICENSE("GPL");
 
 /* acceptable ports: 0x350 (JP3 shorted), 0x358 (JP3 open) */
 
@@ -72,26 +38,41 @@ static struct v4l2_queryctrl radio_qctrl[] = {
 
 static int io = CONFIG_RADIO_TRUST_PORT;
 static int radio_nr = -1;
-static int ioval = 0xf;
-static __u16 curvol;
-static __u16 curbass;
-static __u16 curtreble;
-static unsigned long curfreq;
-static int curstereo;
-static int curmute;
-static unsigned long in_use;
+
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, "I/O address of the Trust FM Radio card (0x350 or 0x358)");
+module_param(radio_nr, int, 0);
+
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
+
+struct trust {
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	int io;
+	int ioval;
+	__u16 curvol;
+	__u16 curbass;
+	__u16 curtreble;
+	int muted;
+	unsigned long curfreq;
+	int curstereo;
+	int curmute;
+	struct mutex lock;
+};
+
+static struct trust trust_card;
 
 /* i2c addresses */
 #define TDA7318_ADDR 0x88
 #define TSA6060T_ADDR 0xc4
 
-#define TR_DELAY do { inb(io); inb(io); inb(io); } while(0)
-#define TR_SET_SCL outb(ioval |= 2, io)
-#define TR_CLR_SCL outb(ioval &= 0xfd, io)
-#define TR_SET_SDA outb(ioval |= 1, io)
-#define TR_CLR_SDA outb(ioval &= 0xfe, io)
+#define TR_DELAY do { inb(tr->io); inb(tr->io); inb(tr->io); } while (0)
+#define TR_SET_SCL outb(tr->ioval |= 2, tr->io)
+#define TR_CLR_SCL outb(tr->ioval &= 0xfd, tr->io)
+#define TR_SET_SDA outb(tr->ioval |= 1, tr->io)
+#define TR_CLR_SDA outb(tr->ioval &= 0xfe, tr->io)
 
-static void write_i2c(int n, ...)
+static void write_i2c(struct trust *tr, int n, ...)
 {
 	unsigned char val, mask;
 	va_list args;
@@ -137,62 +118,77 @@ static void write_i2c(int n, ...)
 	va_end(args);
 }
 
-static void tr_setvol(__u16 vol)
+static void tr_setvol(struct trust *tr, __u16 vol)
 {
-	curvol = vol / 2048;
-	write_i2c(2, TDA7318_ADDR, curvol ^ 0x1f);
+	mutex_lock(&tr->lock);
+	tr->curvol = vol / 2048;
+	write_i2c(tr, 2, TDA7318_ADDR, tr->curvol ^ 0x1f);
+	mutex_unlock(&tr->lock);
 }
 
 static int basstreble2chip[15] = {
 	0, 1, 2, 3, 4, 5, 6, 7, 14, 13, 12, 11, 10, 9, 8
 };
 
-static void tr_setbass(__u16 bass)
+static void tr_setbass(struct trust *tr, __u16 bass)
 {
-	curbass = bass / 4370;
-	write_i2c(2, TDA7318_ADDR, 0x60 | basstreble2chip[curbass]);
+	mutex_lock(&tr->lock);
+	tr->curbass = bass / 4370;
+	write_i2c(tr, 2, TDA7318_ADDR, 0x60 | basstreble2chip[tr->curbass]);
+	mutex_unlock(&tr->lock);
 }
 
-static void tr_settreble(__u16 treble)
+static void tr_settreble(struct trust *tr, __u16 treble)
 {
-	curtreble = treble / 4370;
-	write_i2c(2, TDA7318_ADDR, 0x70 | basstreble2chip[curtreble]);
+	mutex_lock(&tr->lock);
+	tr->curtreble = treble / 4370;
+	write_i2c(tr, 2, TDA7318_ADDR, 0x70 | basstreble2chip[tr->curtreble]);
+	mutex_unlock(&tr->lock);
 }
 
-static void tr_setstereo(int stereo)
+static void tr_setstereo(struct trust *tr, int stereo)
 {
-	curstereo = !!stereo;
-	ioval = (ioval & 0xfb) | (!curstereo << 2);
-	outb(ioval, io);
+	mutex_lock(&tr->lock);
+	tr->curstereo = !!stereo;
+	tr->ioval = (tr->ioval & 0xfb) | (!tr->curstereo << 2);
+	outb(tr->ioval, tr->io);
+	mutex_unlock(&tr->lock);
 }
 
-static void tr_setmute(int mute)
+static void tr_setmute(struct trust *tr, int mute)
 {
-	curmute = !!mute;
-	ioval = (ioval & 0xf7) | (curmute << 3);
-	outb(ioval, io);
+	mutex_lock(&tr->lock);
+	tr->curmute = !!mute;
+	tr->ioval = (tr->ioval & 0xf7) | (tr->curmute << 3);
+	outb(tr->ioval, tr->io);
+	mutex_unlock(&tr->lock);
 }
 
-static int tr_getsigstr(void)
+static int tr_getsigstr(struct trust *tr)
 {
 	int i, v;
 
-	for(i = 0, v = 0; i < 100; i++) v |= inb(io);
-	return (v & 1)? 0 : 0xffff;
+	mutex_lock(&tr->lock);
+	for (i = 0, v = 0; i < 100; i++)
+		v |= inb(tr->io);
+	mutex_unlock(&tr->lock);
+	return (v & 1) ? 0 : 0xffff;
 }
 
-static int tr_getstereo(void)
+static int tr_getstereo(struct trust *tr)
 {
 	/* don't know how to determine it, just return the setting */
-	return curstereo;
+	return tr->curstereo;
 }
 
-static void tr_setfreq(unsigned long f)
+static void tr_setfreq(struct trust *tr, unsigned long f)
 {
+	mutex_lock(&tr->lock);
+	tr->curfreq = f;
 	f /= 160;	/* Convert to 10 kHz units	*/
-	f += 1070;	/* Add 10.7 MHz IF			*/
-
-	write_i2c(5, TSA6060T_ADDR, (f << 1) | 1, f >> 7, 0x60 | ((f >> 15) & 1), 0);
+	f += 1070;	/* Add 10.7 MHz IF		*/
+	write_i2c(tr, 5, TSA6060T_ADDR, (f << 1) | 1, f >> 7, 0x60 | ((f >> 15) & 1), 0);
+	mutex_unlock(&tr->lock);
 }
 
 static int vidioc_querycap(struct file *file, void *priv,
@@ -200,68 +196,75 @@ static int vidioc_querycap(struct file *file, void *priv,
 {
 	strlcpy(v->driver, "radio-trust", sizeof(v->driver));
 	strlcpy(v->card, "Trust FM Radio", sizeof(v->card));
-	sprintf(v->bus_info, "ISA");
+	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
 	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
 static int vidioc_g_tuner(struct file *file, void *priv,
 				struct v4l2_tuner *v)
 {
+	struct trust *tr = video_drvdata(file);
+
 	if (v->index > 0)
 		return -EINVAL;
 
-	strcpy(v->name, "FM");
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
-	v->rangelow = (87.5*16000);
-	v->rangehigh = (108*16000);
-	v->rxsubchans = V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
+	v->rangelow = 87.5 * 16000;
+	v->rangehigh = 108 * 16000;
+	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
 	v->capability = V4L2_TUNER_CAP_LOW;
-	if (tr_getstereo())
+	if (tr_getstereo(tr))
 		v->audmode = V4L2_TUNER_MODE_STEREO;
 	else
 		v->audmode = V4L2_TUNER_MODE_MONO;
-	v->signal = tr_getsigstr();
+	v->signal = tr_getsigstr(tr);
 	return 0;
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv,
 				struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
+	struct trust *tr = video_drvdata(file);
 
+	if (v->index)
+		return -EINVAL;
+	tr_setstereo(tr, v->audmode == V4L2_TUNER_MODE_STEREO);
 	return 0;
 }
 
 static int vidioc_s_frequency(struct file *file, void *priv,
 				struct v4l2_frequency *f)
 {
-	curfreq = f->frequency;
-	tr_setfreq(curfreq);
+	struct trust *tr = video_drvdata(file);
+
+	tr_setfreq(tr, f->frequency);
 	return 0;
 }
 
 static int vidioc_g_frequency(struct file *file, void *priv,
 				struct v4l2_frequency *f)
 {
+	struct trust *tr = video_drvdata(file);
+
 	f->type = V4L2_TUNER_RADIO;
-	f->frequency = curfreq;
+	f->frequency = tr->curfreq;
 	return 0;
 }
 
 static int vidioc_queryctrl(struct file *file, void *priv,
 				struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]),
-						sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 2048, 65535);
+	case V4L2_CID_AUDIO_BASS:
+	case V4L2_CID_AUDIO_TREBLE:
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 4370, 32768);
 	}
 	return -EINVAL;
 }
@@ -269,18 +272,20 @@ static int vidioc_queryctrl(struct file *file, void *priv,
 static int vidioc_g_ctrl(struct file *file, void *priv,
 				struct v4l2_control *ctrl)
 {
+	struct trust *tr = video_drvdata(file);
+
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
-		ctrl->value = curmute;
+		ctrl->value = tr->curmute;
 		return 0;
 	case V4L2_CID_AUDIO_VOLUME:
-		ctrl->value = curvol * 2048;
+		ctrl->value = tr->curvol * 2048;
 		return 0;
 	case V4L2_CID_AUDIO_BASS:
-		ctrl->value = curbass * 4370;
+		ctrl->value = tr->curbass * 4370;
 		return 0;
 	case V4L2_CID_AUDIO_TREBLE:
-		ctrl->value = curtreble * 4370;
+		ctrl->value = tr->curtreble * 4370;
 		return 0;
 	}
 	return -EINVAL;
@@ -289,37 +294,25 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 static int vidioc_s_ctrl(struct file *file, void *priv,
 				struct v4l2_control *ctrl)
 {
+	struct trust *tr = video_drvdata(file);
+
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
-		tr_setmute(ctrl->value);
+		tr_setmute(tr, ctrl->value);
 		return 0;
 	case V4L2_CID_AUDIO_VOLUME:
-		tr_setvol(ctrl->value);
+		tr_setvol(tr, ctrl->value);
 		return 0;
 	case V4L2_CID_AUDIO_BASS:
-		tr_setbass(ctrl->value);
+		tr_setbass(tr, ctrl->value);
 		return 0;
 	case V4L2_CID_AUDIO_TREBLE:
-		tr_settreble(ctrl->value);
+		tr_settreble(tr, ctrl->value);
 		return 0;
 	}
-#if 0 /* Should implement mono/stereo on V4L2 */
-			tr_setstereo(v->mode & VIDEO_SOUND_STEREO);
-#endif
 	return -EINVAL;
 }
 
-static int vidioc_g_audio(struct file *file, void *priv,
-				struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
-}
-
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 {
 	*i = 0;
@@ -328,34 +321,26 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
-	return 0;
+	return i ? -EINVAL : 0;
 }
 
-static int vidioc_s_audio(struct file *file, void *priv,
+static int vidioc_g_audio(struct file *file, void *priv,
 				struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
-static int trust_exclusive_open(struct file *file)
-{
-	return test_and_set_bit(0, &in_use) ? -EBUSY : 0;
-}
-
-static int trust_exclusive_release(struct file *file)
+static int vidioc_s_audio(struct file *file, void *priv,
+				struct v4l2_audio *a)
 {
-	clear_bit(0, &in_use);
-	return 0;
+	return a->index ? -EINVAL : 0;
 }
 
 static const struct v4l2_file_operations trust_fops = {
 	.owner		= THIS_MODULE,
-	.open           = trust_exclusive_open,
-	.release        = trust_exclusive_release,
 	.ioctl		= video_ioctl2,
 };
 
@@ -374,59 +359,72 @@ static const struct v4l2_ioctl_ops trust_ioctl_ops = {
 	.vidioc_s_input     = vidioc_s_input,
 };
 
-static struct video_device trust_radio = {
-	.name		= "Trust FM Radio",
-	.fops           = &trust_fops,
-	.ioctl_ops 	= &trust_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
 static int __init trust_init(void)
 {
-	if(io == -1) {
-		printk(KERN_ERR "You must set an I/O address with io=0x???\n");
+	struct trust *tr = &trust_card;
+	struct v4l2_device *v4l2_dev = &tr->v4l2_dev;
+	int res;
+
+	strlcpy(v4l2_dev->name, "trust", sizeof(v4l2_dev->name));
+	tr->io = io;
+	tr->ioval = 0xf;
+	mutex_init(&tr->lock);
+
+	if (tr->io == -1) {
+		v4l2_err(v4l2_dev, "You must set an I/O address with io=0x0x350 or 0x358\n");
 		return -EINVAL;
 	}
-	if(!request_region(io, 2, "Trust FM Radio")) {
-		printk(KERN_ERR "trust: port 0x%x already in use\n", io);
+	if (!request_region(tr->io, 2, "Trust FM Radio")) {
+		v4l2_err(v4l2_dev, "port 0x%x already in use\n", tr->io);
 		return -EBUSY;
 	}
-	if (video_register_device(&trust_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
-		release_region(io, 2);
+
+	res = v4l2_device_register(NULL, v4l2_dev);
+	if (res < 0) {
+		release_region(tr->io, 2);
+		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		return res;
+	}
+
+	strlcpy(tr->vdev.name, v4l2_dev->name, sizeof(tr->vdev.name));
+	tr->vdev.v4l2_dev = v4l2_dev;
+	tr->vdev.fops = &trust_fops;
+	tr->vdev.ioctl_ops = &trust_ioctl_ops;
+	tr->vdev.release = video_device_release_empty;
+	video_set_drvdata(&tr->vdev, tr);
+
+	if (video_register_device(&tr->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(v4l2_dev);
+		release_region(tr->io, 2);
 		return -EINVAL;
 	}
 
-	printk(KERN_INFO "Trust FM Radio card driver v1.0.\n");
+	v4l2_info(v4l2_dev, "Trust FM Radio card driver v1.0.\n");
 
-	write_i2c(2, TDA7318_ADDR, 0x80);	/* speaker att. LF = 0 dB */
-	write_i2c(2, TDA7318_ADDR, 0xa0);	/* speaker att. RF = 0 dB */
-	write_i2c(2, TDA7318_ADDR, 0xc0);	/* speaker att. LR = 0 dB */
-	write_i2c(2, TDA7318_ADDR, 0xe0);	/* speaker att. RR = 0 dB */
-	write_i2c(2, TDA7318_ADDR, 0x40);	/* stereo 1 input, gain = 18.75 dB */
+	write_i2c(tr, 2, TDA7318_ADDR, 0x80);	/* speaker att. LF = 0 dB */
+	write_i2c(tr, 2, TDA7318_ADDR, 0xa0);	/* speaker att. RF = 0 dB */
+	write_i2c(tr, 2, TDA7318_ADDR, 0xc0);	/* speaker att. LR = 0 dB */
+	write_i2c(tr, 2, TDA7318_ADDR, 0xe0);	/* speaker att. RR = 0 dB */
+	write_i2c(tr, 2, TDA7318_ADDR, 0x40);	/* stereo 1 input, gain = 18.75 dB */
 
-	tr_setvol(0x8000);
-	tr_setbass(0x8000);
-	tr_settreble(0x8000);
-	tr_setstereo(1);
+	tr_setvol(tr, 0xffff);
+	tr_setbass(tr, 0x8000);
+	tr_settreble(tr, 0x8000);
+	tr_setstereo(tr, 1);
 
 	/* mute card - prevents noisy bootups */
-	tr_setmute(1);
+	tr_setmute(tr, 1);
 
 	return 0;
 }
 
-MODULE_AUTHOR("Eric Lammerts, Russell Kroll, Quay Lu, Donald Song, Jason Lewis, Scott McGrath, William McGrath");
-MODULE_DESCRIPTION("A driver for the Trust FM Radio card.");
-MODULE_LICENSE("GPL");
-
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the Trust FM Radio card (0x350 or 0x358)");
-module_param(radio_nr, int, 0);
-
 static void __exit cleanup_trust_module(void)
 {
-	video_unregister_device(&trust_radio);
-	release_region(io, 2);
+	struct trust *tr = &trust_card;
+
+	video_unregister_device(&tr->vdev);
+	v4l2_device_unregister(&tr->v4l2_dev);
+	release_region(tr->io, 2);
 }
 
 module_init(trust_init);
diff --git a/linux/drivers/media/radio/radio-typhoon.c b/linux/drivers/media/radio/radio-typhoon.c
index bf812fbb5..23dece5e4 100644
--- a/linux/drivers/media/radio/radio-typhoon.c
+++ b/linux/drivers/media/radio/radio-typhoon.c
@@ -34,38 +34,16 @@
 #include <linux/module.h>	/* Modules                        */
 #include <linux/init.h>		/* Initdata                       */
 #include <linux/ioport.h>	/* request_region		  */
-#include <linux/proc_fs.h>	/* radio card status report	  */
-#include <linux/seq_file.h>
-#include <asm/io.h>		/* outb, outb_p                   */
-#include <asm/uaccess.h>	/* copy to/from user              */
-#include "compat.h"
+#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
 #include <linux/videodev2.h>	/* kernel radio structs           */
-#include <media/v4l2-common.h>
+#include <linux/io.h>		/* outb, outb_p                   */
+#include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
+#include "compat.h"
 
-#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
-#define RADIO_VERSION KERNEL_VERSION(0,1,1)
-#define BANNER "Typhoon Radio Card driver v0.1.1\n"
-
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	},{
-		.id            = V4L2_CID_AUDIO_VOLUME,
-		.name          = "Volume",
-		.minimum       = 0,
-		.maximum       = 65535,
-		.step          = 1<<14,
-		.default_value = 0xff,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-	}
-};
-
+MODULE_AUTHOR("Dr. Henrik Seidel");
+MODULE_DESCRIPTION("A driver for the Typhoon radio card (a.k.a. EcoRadio).");
+MODULE_LICENSE("GPL");
 
 #ifndef CONFIG_RADIO_TYPHOON_PORT
 #define CONFIG_RADIO_TYPHOON_PORT -1
@@ -75,13 +53,26 @@ static struct v4l2_queryctrl radio_qctrl[] = {
 #define CONFIG_RADIO_TYPHOON_MUTEFREQ 0
 #endif
 
-#ifndef CONFIG_PROC_FS
-#undef CONFIG_RADIO_TYPHOON_PROC_FS
-#endif
+static int io = CONFIG_RADIO_TYPHOON_PORT;
+static int radio_nr = -1;
+
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, "I/O address of the Typhoon card (0x316 or 0x336)");
+
+module_param(radio_nr, int, 0);
+
+static unsigned long mutefreq = CONFIG_RADIO_TYPHOON_MUTEFREQ;
+module_param(mutefreq, ulong, 0);
+MODULE_PARM_DESC(mutefreq, "Frequency used when muting the card (in kHz)");
+
+#define RADIO_VERSION KERNEL_VERSION(0, 1, 1)
+
+#define BANNER "Typhoon Radio Card driver v0.1.1\n"
 
-struct typhoon_device {
-	unsigned long in_use;
-	int iobase;
+struct typhoon {
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	int io;
 	int curvol;
 	int muted;
 	unsigned long curfreq;
@@ -89,25 +80,19 @@ struct typhoon_device {
 	struct mutex lock;
 };
 
-static void typhoon_setvol_generic(struct typhoon_device *dev, int vol);
-static int typhoon_setfreq_generic(struct typhoon_device *dev,
-				   unsigned long frequency);
-static int typhoon_setfreq(struct typhoon_device *dev, unsigned long frequency);
-static void typhoon_mute(struct typhoon_device *dev);
-static void typhoon_unmute(struct typhoon_device *dev);
-static int typhoon_setvol(struct typhoon_device *dev, int vol);
+static struct typhoon typhoon_card;
 
-static void typhoon_setvol_generic(struct typhoon_device *dev, int vol)
+static void typhoon_setvol_generic(struct typhoon *dev, int vol)
 {
 	mutex_lock(&dev->lock);
 	vol >>= 14;				/* Map 16 bit to 2 bit */
 	vol &= 3;
-	outb_p(vol / 2, dev->iobase);		/* Set the volume, high bit. */
-	outb_p(vol % 2, dev->iobase + 2);	/* Set the volume, low bit. */
+	outb_p(vol / 2, dev->io);		/* Set the volume, high bit. */
+	outb_p(vol % 2, dev->io + 2);	/* Set the volume, low bit. */
 	mutex_unlock(&dev->lock);
 }
 
-static int typhoon_setfreq_generic(struct typhoon_device *dev,
+static int typhoon_setfreq_generic(struct typhoon *dev,
 				   unsigned long frequency)
 {
 	unsigned long outval;
@@ -131,22 +116,22 @@ static int typhoon_setfreq_generic(struct typhoon_device *dev,
 	outval -= (10 * x * x + 10433) / 20866;
 	outval += 4 * x - 11505;
 
-	outb_p((outval >> 8) & 0x01, dev->iobase + 4);
-	outb_p(outval >> 9, dev->iobase + 6);
-	outb_p(outval & 0xff, dev->iobase + 8);
+	outb_p((outval >> 8) & 0x01, dev->io + 4);
+	outb_p(outval >> 9, dev->io + 6);
+	outb_p(outval & 0xff, dev->io + 8);
 	mutex_unlock(&dev->lock);
 
 	return 0;
 }
 
-static int typhoon_setfreq(struct typhoon_device *dev, unsigned long frequency)
+static int typhoon_setfreq(struct typhoon *dev, unsigned long frequency)
 {
 	typhoon_setfreq_generic(dev, frequency);
 	dev->curfreq = frequency;
 	return 0;
 }
 
-static void typhoon_mute(struct typhoon_device *dev)
+static void typhoon_mute(struct typhoon *dev)
 {
 	if (dev->muted == 1)
 		return;
@@ -155,7 +140,7 @@ static void typhoon_mute(struct typhoon_device *dev)
 	dev->muted = 1;
 }
 
-static void typhoon_unmute(struct typhoon_device *dev)
+static void typhoon_unmute(struct typhoon *dev)
 {
 	if (dev->muted == 0)
 		return;
@@ -164,7 +149,7 @@ static void typhoon_unmute(struct typhoon_device *dev)
 	dev->muted = 0;
 }
 
-static int typhoon_setvol(struct typhoon_device *dev, int vol)
+static int typhoon_setvol(struct typhoon *dev, int vol)
 {
 	if (dev->muted && vol != 0) {	/* user is unmuting the card */
 		dev->curvol = vol;
@@ -189,9 +174,9 @@ static int vidioc_querycap(struct file *file, void  *priv,
 {
 	strlcpy(v->driver, "radio-typhoon", sizeof(v->driver));
 	strlcpy(v->card, "Typhoon Radio", sizeof(v->card));
-	sprintf(v->bus_info, "ISA");
+	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
 	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
@@ -201,10 +186,10 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 	if (v->index > 0)
 		return -EINVAL;
 
-	strcpy(v->name, "FM");
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
-	v->rangelow = (87.5*16000);
-	v->rangehigh = (108*16000);
+	v->rangelow = 87.5 * 16000;
+	v->rangehigh = 108 * 16000;
 	v->rxsubchans = V4L2_TUNER_SUB_MONO;
 	v->capability = V4L2_TUNER_CAP_LOW;
 	v->audmode = V4L2_TUNER_MODE_MONO;
@@ -215,44 +200,37 @@ static int vidioc_g_tuner(struct file *file, void *priv,
 static int vidioc_s_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
-
-	return 0;
+	return v->index ? -EINVAL : 0;
 }
 
-static int vidioc_s_frequency(struct file *file, void *priv,
+static int vidioc_g_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct typhoon_device *typhoon = video_drvdata(file);
+	struct typhoon *dev = video_drvdata(file);
 
-	typhoon->curfreq = f->frequency;
-	typhoon_setfreq(typhoon, typhoon->curfreq);
+	f->type = V4L2_TUNER_RADIO;
+	f->frequency = dev->curfreq;
 	return 0;
 }
 
-static int vidioc_g_frequency(struct file *file, void *priv,
+static int vidioc_s_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct typhoon_device *typhoon = video_drvdata(file);
-
-	f->type = V4L2_TUNER_RADIO;
-	f->frequency = typhoon->curfreq;
+	struct typhoon *dev = video_drvdata(file);
 
+	dev->curfreq = f->frequency;
+	typhoon_setfreq(dev, dev->curfreq);
 	return 0;
 }
 
 static int vidioc_queryctrl(struct file *file, void *priv,
 					struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]),
-						sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 16384, 65535);
 	}
 	return -EINVAL;
 }
@@ -260,14 +238,14 @@ static int vidioc_queryctrl(struct file *file, void *priv,
 static int vidioc_g_ctrl(struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct typhoon_device *typhoon = video_drvdata(file);
+	struct typhoon *dev = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
-		ctrl->value = typhoon->muted;
+		ctrl->value = dev->muted;
 		return 0;
 	case V4L2_CID_AUDIO_VOLUME:
-		ctrl->value = typhoon->curvol;
+		ctrl->value = dev->curvol;
 		return 0;
 	}
 	return -EINVAL;
@@ -276,33 +254,22 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 static int vidioc_s_ctrl (struct file *file, void *priv,
 					struct v4l2_control *ctrl)
 {
-	struct typhoon_device *typhoon = video_drvdata(file);
+	struct typhoon *dev = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
 		if (ctrl->value)
-			typhoon_mute(typhoon);
+			typhoon_mute(dev);
 		else
-			typhoon_unmute(typhoon);
+			typhoon_unmute(dev);
 		return 0;
 	case V4L2_CID_AUDIO_VOLUME:
-		typhoon_setvol(typhoon, ctrl->value);
+		typhoon_setvol(dev, ctrl->value);
 		return 0;
 	}
 	return -EINVAL;
 }
 
-static int vidioc_g_audio(struct file *file, void *priv,
-					struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
-}
-
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 {
 	*i = 0;
@@ -311,45 +278,50 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
-	return 0;
+	return i ? -EINVAL : 0;
 }
 
-static int vidioc_s_audio(struct file *file, void *priv,
+static int vidioc_g_audio(struct file *file, void *priv,
 					struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
-static struct typhoon_device typhoon_unit =
-{
-	.iobase		= CONFIG_RADIO_TYPHOON_PORT,
-	.curfreq	= CONFIG_RADIO_TYPHOON_MUTEFREQ,
-	.mutefreq	= CONFIG_RADIO_TYPHOON_MUTEFREQ,
-};
-
-static int typhoon_exclusive_open(struct file *file)
+static int vidioc_s_audio(struct file *file, void *priv,
+					struct v4l2_audio *a)
 {
-	return test_and_set_bit(0, &typhoon_unit.in_use) ? -EBUSY : 0;
+	return a->index ? -EINVAL : 0;
 }
 
-static int typhoon_exclusive_release(struct file *file)
+static int vidioc_log_status(struct file *file, void *priv)
 {
-	clear_bit(0, &typhoon_unit.in_use);
+	struct typhoon *dev = video_drvdata(file);
+	struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
+
+	v4l2_info(v4l2_dev, BANNER);
+#ifdef MODULE
+	v4l2_info(v4l2_dev, "Load type: Driver loaded as a module\n\n");
+#else
+	v4l2_info(v4l2_dev, "Load type: Driver compiled into kernel\n\n");
+#endif
+	v4l2_info(v4l2_dev, "frequency = %lu kHz\n", dev->curfreq >> 4);
+	v4l2_info(v4l2_dev, "volume = %d\n", dev->curvol);
+	v4l2_info(v4l2_dev, "mute = %s\n", dev->muted ?  "on" : "off");
+	v4l2_info(v4l2_dev, "io = 0x%x\n", dev->io);
+	v4l2_info(v4l2_dev, "mute frequency = %lu kHz\n", dev->mutefreq >> 4);
 	return 0;
 }
 
 static const struct v4l2_file_operations typhoon_fops = {
 	.owner		= THIS_MODULE,
-	.open           = typhoon_exclusive_open,
-	.release        = typhoon_exclusive_release,
 	.ioctl		= video_ioctl2,
 };
 
 static const struct v4l2_ioctl_ops typhoon_ioctl_ops = {
+	.vidioc_log_status  = vidioc_log_status,
 	.vidioc_querycap    = vidioc_querycap,
 	.vidioc_g_tuner     = vidioc_g_tuner,
 	.vidioc_s_tuner     = vidioc_s_tuner,
@@ -364,125 +336,72 @@ static const struct v4l2_ioctl_ops typhoon_ioctl_ops = {
 	.vidioc_s_ctrl      = vidioc_s_ctrl,
 };
 
-static struct video_device typhoon_radio = {
-	.name		= "Typhoon Radio",
-	.fops           = &typhoon_fops,
-	.ioctl_ops 	= &typhoon_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
-#ifdef CONFIG_RADIO_TYPHOON_PROC_FS
-
-static int typhoon_proc_show(struct seq_file *m, void *v)
-{
-	#ifdef MODULE
-	    #define MODULEPROCSTRING "Driver loaded as a module"
-	#else
-	    #define MODULEPROCSTRING "Driver compiled into kernel"
-	#endif
-
-	seq_puts(m, BANNER);
-	seq_puts(m, "Load type: " MODULEPROCSTRING "\n\n");
-	seq_printf(m, "frequency = %lu kHz\n",
-		typhoon_unit.curfreq >> 4);
-	seq_printf(m, "volume = %d\n", typhoon_unit.curvol);
-	seq_printf(m, "mute = %s\n", typhoon_unit.muted ?
-		"on" : "off");
-	seq_printf(m, "iobase = 0x%x\n", typhoon_unit.iobase);
-	seq_printf(m, "mute frequency = %lu kHz\n",
-		typhoon_unit.mutefreq >> 4);
-	return 0;
-}
-
-static int typhoon_proc_open(struct inode *inode, struct file *file)
+static int __init typhoon_init(void)
 {
-	return single_open(file, typhoon_proc_show, NULL);
-}
-
-static const struct file_operations typhoon_proc_fops = {
-	.owner		= THIS_MODULE,
-	.open		= typhoon_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-#endif /* CONFIG_RADIO_TYPHOON_PROC_FS */
-
-MODULE_AUTHOR("Dr. Henrik Seidel");
-MODULE_DESCRIPTION("A driver for the Typhoon radio card (a.k.a. EcoRadio).");
-MODULE_LICENSE("GPL");
-
-static int io = -1;
-static int radio_nr = -1;
-
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the Typhoon card (0x316 or 0x336)");
-module_param(radio_nr, int, 0);
+	struct typhoon *dev = &typhoon_card;
+	struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
+	int res;
 
-#ifdef MODULE
-static unsigned long mutefreq;
-module_param(mutefreq, ulong, 0);
-MODULE_PARM_DESC(mutefreq, "Frequency used when muting the card (in kHz)");
-#endif
+	strlcpy(v4l2_dev->name, "typhoon", sizeof(v4l2_dev->name));
+	dev->io = io;
+	dev->curfreq = dev->mutefreq = mutefreq;
 
-static int __init typhoon_init(void)
-{
-#ifdef MODULE
-	if (io == -1) {
-		printk(KERN_ERR "radio-typhoon: You must set an I/O address with io=0x316 or io=0x336\n");
+	if (dev->io == -1) {
+		v4l2_err(v4l2_dev, "You must set an I/O address with io=0x316 or io=0x336\n");
 		return -EINVAL;
 	}
-	typhoon_unit.iobase = io;
 
-	if (mutefreq < 87000 || mutefreq > 108500) {
-		printk(KERN_ERR "radio-typhoon: You must set a frequency (in kHz) used when muting the card,\n");
-		printk(KERN_ERR "radio-typhoon: e.g. with \"mutefreq=87500\" (87000 <= mutefreq <= 108500)\n");
+	if (dev->mutefreq < 87000 || dev->mutefreq > 108500) {
+		v4l2_err(v4l2_dev, "You must set a frequency (in kHz) used when muting the card,\n");
+		v4l2_err(v4l2_dev, "e.g. with \"mutefreq=87500\" (87000 <= mutefreq <= 108500)\n");
 		return -EINVAL;
 	}
-	typhoon_unit.mutefreq = mutefreq;
-#endif /* MODULE */
-
-	printk(KERN_INFO BANNER);
-	mutex_init(&typhoon_unit.lock);
-	io = typhoon_unit.iobase;
-	if (!request_region(io, 8, "typhoon")) {
-		printk(KERN_ERR "radio-typhoon: port 0x%x already in use\n",
-		       typhoon_unit.iobase);
+
+	mutex_init(&dev->lock);
+	if (!request_region(dev->io, 8, "typhoon")) {
+		v4l2_err(v4l2_dev, "port 0x%x already in use\n",
+		       dev->io);
 		return -EBUSY;
 	}
 
-	video_set_drvdata(&typhoon_radio, &typhoon_unit);
-	if (video_register_device(&typhoon_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
-		release_region(io, 8);
+	res = v4l2_device_register(NULL, v4l2_dev);
+	if (res < 0) {
+		release_region(dev->io, 8);
+		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		return res;
+	}
+	v4l2_info(v4l2_dev, BANNER);
+
+	strlcpy(dev->vdev.name, v4l2_dev->name, sizeof(dev->vdev.name));
+	dev->vdev.v4l2_dev = v4l2_dev;
+	dev->vdev.fops = &typhoon_fops;
+	dev->vdev.ioctl_ops = &typhoon_ioctl_ops;
+	dev->vdev.release = video_device_release_empty;
+	video_set_drvdata(&dev->vdev, dev);
+	if (video_register_device(&dev->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(&dev->v4l2_dev);
+		release_region(dev->io, 8);
 		return -EINVAL;
 	}
-	printk(KERN_INFO "radio-typhoon: port 0x%x.\n", typhoon_unit.iobase);
-	printk(KERN_INFO "radio-typhoon: mute frequency is %lu kHz.\n",
-	       typhoon_unit.mutefreq);
-	typhoon_unit.mutefreq <<= 4;
+	v4l2_info(v4l2_dev, "port 0x%x.\n", dev->io);
+	v4l2_info(v4l2_dev, "mute frequency is %lu kHz.\n", dev->mutefreq);
+	dev->mutefreq <<= 4;
 
 	/* mute card - prevents noisy bootups */
-	typhoon_mute(&typhoon_unit);
-
-#ifdef CONFIG_RADIO_TYPHOON_PROC_FS
-	if (!proc_create("driver/radio-typhoon", 0, NULL, &typhoon_proc_fops))
-		printk(KERN_ERR "radio-typhoon: registering /proc/driver/radio-typhoon failed\n");
-#endif
+	typhoon_mute(dev);
 
 	return 0;
 }
 
-static void __exit typhoon_cleanup_module(void)
+static void __exit typhoon_exit(void)
 {
+	struct typhoon *dev = &typhoon_card;
 
-#ifdef CONFIG_RADIO_TYPHOON_PROC_FS
-	remove_proc_entry("driver/radio-typhoon", NULL);
-#endif
-
-	video_unregister_device(&typhoon_radio);
-	release_region(io, 8);
+	video_unregister_device(&dev->vdev);
+	v4l2_device_unregister(&dev->v4l2_dev);
+	release_region(dev->io, 8);
 }
 
 module_init(typhoon_init);
-module_exit(typhoon_cleanup_module);
+module_exit(typhoon_exit);
 
diff --git a/linux/drivers/media/radio/radio-zoltrix.c b/linux/drivers/media/radio/radio-zoltrix.c
index 4654ecd8b..c06fbb4fc 100644
--- a/linux/drivers/media/radio/radio-zoltrix.c
+++ b/linux/drivers/media/radio/radio-zoltrix.c
@@ -33,34 +33,17 @@
 #include <linux/init.h>		/* Initdata                       */
 #include <linux/ioport.h>	/* request_region		  */
 #include <linux/delay.h>	/* udelay, msleep                 */
-#include <asm/io.h>		/* outb, outb_p                   */
-#include <asm/uaccess.h>	/* copy to/from user              */
-#include "compat.h"
 #include <linux/videodev2.h>	/* kernel radio structs           */
-#include <media/v4l2-common.h>
+#include <linux/mutex.h>
+#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
+#include <linux/io.h>		/* outb, outb_p                   */
+#include <media/v4l2-device.h>
 #include <media/v4l2-ioctl.h>
+#include "compat.h"
 
-#include <linux/version.h>      /* for KERNEL_VERSION MACRO     */
-#define RADIO_VERSION KERNEL_VERSION(0,0,2)
-
-static struct v4l2_queryctrl radio_qctrl[] = {
-	{
-		.id            = V4L2_CID_AUDIO_MUTE,
-		.name          = "Mute",
-		.minimum       = 0,
-		.maximum       = 1,
-		.default_value = 1,
-		.type          = V4L2_CTRL_TYPE_BOOLEAN,
-	},{
-		.id            = V4L2_CID_AUDIO_VOLUME,
-		.name          = "Volume",
-		.minimum       = 0,
-		.maximum       = 65535,
-		.step          = 4096,
-		.default_value = 0xff,
-		.type          = V4L2_CTRL_TYPE_INTEGER,
-	}
-};
+MODULE_AUTHOR("C.van Schaik");
+MODULE_DESCRIPTION("A driver for the Zoltrix Radio Plus.");
+MODULE_LICENSE("GPL");
 
 #ifndef CONFIG_RADIO_ZOLTRIX_PORT
 #define CONFIG_RADIO_ZOLTRIX_PORT -1
@@ -69,9 +52,16 @@ static struct v4l2_queryctrl radio_qctrl[] = {
 static int io = CONFIG_RADIO_ZOLTRIX_PORT;
 static int radio_nr = -1;
 
-struct zol_device {
-	unsigned long in_use;
-	int port;
+module_param(io, int, 0);
+MODULE_PARM_DESC(io, "I/O address of the Zoltrix Radio Plus (0x20c or 0x30c)");
+module_param(radio_nr, int, 0);
+
+#define RADIO_VERSION KERNEL_VERSION(0, 0, 2)
+
+struct zoltrix {
+	struct v4l2_device v4l2_dev;
+	struct video_device vdev;
+	int io;
 	int curvol;
 	unsigned long curfreq;
 	int muted;
@@ -79,161 +69,158 @@ struct zol_device {
 	struct mutex lock;
 };
 
-static int zol_setvol(struct zol_device *dev, int vol)
+static struct zoltrix zoltrix_card;
+
+static int zol_setvol(struct zoltrix *zol, int vol)
 {
-	dev->curvol = vol;
-	if (dev->muted)
+	zol->curvol = vol;
+	if (zol->muted)
 		return 0;
 
-	mutex_lock(&dev->lock);
+	mutex_lock(&zol->lock);
 	if (vol == 0) {
-		outb(0, io);
-		outb(0, io);
-		inb(io + 3);    /* Zoltrix needs to be read to confirm */
-		mutex_unlock(&dev->lock);
+		outb(0, zol->io);
+		outb(0, zol->io);
+		inb(zol->io + 3);    /* Zoltrix needs to be read to confirm */
+		mutex_unlock(&zol->lock);
 		return 0;
 	}
 
-	outb(dev->curvol-1, io);
+	outb(zol->curvol-1, zol->io);
 	msleep(10);
-	inb(io + 2);
-	mutex_unlock(&dev->lock);
+	inb(zol->io + 2);
+	mutex_unlock(&zol->lock);
 	return 0;
 }
 
-static void zol_mute(struct zol_device *dev)
+static void zol_mute(struct zoltrix *zol)
 {
-	dev->muted = 1;
-	mutex_lock(&dev->lock);
-	outb(0, io);
-	outb(0, io);
-	inb(io + 3);            /* Zoltrix needs to be read to confirm */
-	mutex_unlock(&dev->lock);
+	zol->muted = 1;
+	mutex_lock(&zol->lock);
+	outb(0, zol->io);
+	outb(0, zol->io);
+	inb(zol->io + 3);            /* Zoltrix needs to be read to confirm */
+	mutex_unlock(&zol->lock);
 }
 
-static void zol_unmute(struct zol_device *dev)
+static void zol_unmute(struct zoltrix *zol)
 {
-	dev->muted = 0;
-	zol_setvol(dev, dev->curvol);
+	zol->muted = 0;
+	zol_setvol(zol, zol->curvol);
 }
 
-static int zol_setfreq(struct zol_device *dev, unsigned long freq)
+static int zol_setfreq(struct zoltrix *zol, unsigned long freq)
 {
 	/* tunes the radio to the desired frequency */
+	struct v4l2_device *v4l2_dev = &zol->v4l2_dev;
 	unsigned long long bitmask, f, m;
-	unsigned int stereo = dev->stereo;
+	unsigned int stereo = zol->stereo;
 	int i;
 
 	if (freq == 0) {
-		printk(KERN_WARNING "zoltrix: received zero freq. Failed to set.\n");
+		v4l2_warn(v4l2_dev, "cannot set a frequency of 0.\n");
 		return -EINVAL;
 	}
 
 	m = (freq / 160 - 8800) * 2;
-	f = (unsigned long long) m + 0x4d1c;
+	f = (unsigned long long)m + 0x4d1c;
 
 	bitmask = 0xc480402c10080000ull;
 	i = 45;
 
-	mutex_lock(&dev->lock);
+	mutex_lock(&zol->lock);
+
+	zol->curfreq = freq;
 
-	outb(0, io);
-	outb(0, io);
-	inb(io + 3);            /* Zoltrix needs to be read to confirm */
+	outb(0, zol->io);
+	outb(0, zol->io);
+	inb(zol->io + 3);            /* Zoltrix needs to be read to confirm */
 
-	outb(0x40, io);
-	outb(0xc0, io);
+	outb(0x40, zol->io);
+	outb(0xc0, zol->io);
 
-	bitmask = (bitmask ^ ((f & 0xff) << 47) ^ ((f & 0xff00) << 30) ^ ( stereo << 31));
+	bitmask = (bitmask ^ ((f & 0xff) << 47) ^ ((f & 0xff00) << 30) ^ (stereo << 31));
 	while (i--) {
 		if ((bitmask & 0x8000000000000000ull) != 0) {
-			outb(0x80, io);
+			outb(0x80, zol->io);
 			udelay(50);
-			outb(0x00, io);
+			outb(0x00, zol->io);
 			udelay(50);
-			outb(0x80, io);
+			outb(0x80, zol->io);
 			udelay(50);
 		} else {
-			outb(0xc0, io);
+			outb(0xc0, zol->io);
 			udelay(50);
-			outb(0x40, io);
+			outb(0x40, zol->io);
 			udelay(50);
-			outb(0xc0, io);
+			outb(0xc0, zol->io);
 			udelay(50);
 		}
 		bitmask *= 2;
 	}
 	/* termination sequence */
-	outb(0x80, io);
-	outb(0xc0, io);
-	outb(0x40, io);
+	outb(0x80, zol->io);
+	outb(0xc0, zol->io);
+	outb(0x40, zol->io);
 	udelay(1000);
-	inb(io+2);
+	inb(zol->io + 2);
 
 	udelay(1000);
 
-	if (dev->muted)
-	{
-		outb(0, io);
-		outb(0, io);
-		inb(io + 3);
+	if (zol->muted) {
+		outb(0, zol->io);
+		outb(0, zol->io);
+		inb(zol->io + 3);
 		udelay(1000);
 	}
 
-	mutex_unlock(&dev->lock);
+	mutex_unlock(&zol->lock);
 
-	if(!dev->muted)
-	{
-		zol_setvol(dev, dev->curvol);
-	}
+	if (!zol->muted)
+		zol_setvol(zol, zol->curvol);
 	return 0;
 }
 
 /* Get signal strength */
-
-static int zol_getsigstr(struct zol_device *dev)
+static int zol_getsigstr(struct zoltrix *zol)
 {
 	int a, b;
 
-	mutex_lock(&dev->lock);
-	outb(0x00, io);         /* This stuff I found to do nothing */
-	outb(dev->curvol, io);
+	mutex_lock(&zol->lock);
+	outb(0x00, zol->io);         /* This stuff I found to do nothing */
+	outb(zol->curvol, zol->io);
 	msleep(20);
 
-	a = inb(io);
+	a = inb(zol->io);
 	msleep(10);
-	b = inb(io);
+	b = inb(zol->io);
 
-	mutex_unlock(&dev->lock);
+	mutex_unlock(&zol->lock);
 
 	if (a != b)
-		return (0);
+		return 0;
 
-	if ((a == 0xcf) || (a == 0xdf)  /* I found this out by playing */
-		|| (a == 0xef))       /* with a binary scanner on the card io */
-		return (1);
-	return (0);
+	/* I found this out by playing with a binary scanner on the card io */
+	return a == 0xcf || a == 0xdf || a == 0xef;
 }
 
-static int zol_is_stereo (struct zol_device *dev)
+static int zol_is_stereo(struct zoltrix *zol)
 {
 	int x1, x2;
 
-	mutex_lock(&dev->lock);
+	mutex_lock(&zol->lock);
 
-	outb(0x00, io);
-	outb(dev->curvol, io);
+	outb(0x00, zol->io);
+	outb(zol->curvol, zol->io);
 	msleep(20);
 
-	x1 = inb(io);
+	x1 = inb(zol->io);
 	msleep(10);
-	x2 = inb(io);
+	x2 = inb(zol->io);
 
-	mutex_unlock(&dev->lock);
+	mutex_unlock(&zol->lock);
 
-	if ((x1 == x2) && (x1 == 0xcf))
-		return 1;
-	return 0;
+	return x1 == x2 && x1 == 0xcf;
 }
 
 static int vidioc_querycap(struct file *file, void  *priv,
@@ -241,59 +228,54 @@ static int vidioc_querycap(struct file *file, void  *priv,
 {
 	strlcpy(v->driver, "radio-zoltrix", sizeof(v->driver));
 	strlcpy(v->card, "Zoltrix Radio", sizeof(v->card));
-	sprintf(v->bus_info, "ISA");
+	strlcpy(v->bus_info, "ISA", sizeof(v->bus_info));
 	v->version = RADIO_VERSION;
-	v->capabilities = V4L2_CAP_TUNER;
+	v->capabilities = V4L2_CAP_TUNER | V4L2_CAP_RADIO;
 	return 0;
 }
 
 static int vidioc_g_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	struct zol_device *zol = video_drvdata(file);
+	struct zoltrix *zol = video_drvdata(file);
 
 	if (v->index > 0)
 		return -EINVAL;
 
-	strcpy(v->name, "FM");
+	strlcpy(v->name, "FM", sizeof(v->name));
 	v->type = V4L2_TUNER_RADIO;
-	v->rangelow = (88*16000);
-	v->rangehigh = (108*16000);
-	v->rxsubchans = V4L2_TUNER_SUB_MONO|V4L2_TUNER_SUB_STEREO;
+	v->rangelow = 88 * 16000;
+	v->rangehigh = 108 * 16000;
+	v->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
 	v->capability = V4L2_TUNER_CAP_LOW;
 	if (zol_is_stereo(zol))
 		v->audmode = V4L2_TUNER_MODE_STEREO;
 	else
 		v->audmode = V4L2_TUNER_MODE_MONO;
-	v->signal = 0xFFFF*zol_getsigstr(zol);
+	v->signal = 0xFFFF * zol_getsigstr(zol);
 	return 0;
 }
 
 static int vidioc_s_tuner(struct file *file, void *priv,
 					struct v4l2_tuner *v)
 {
-	if (v->index > 0)
-		return -EINVAL;
-	return 0;
+	return v->index ? -EINVAL : 0;
 }
 
 static int vidioc_s_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct zol_device *zol = video_drvdata(file);
+	struct zoltrix *zol = video_drvdata(file);
 
-	zol->curfreq = f->frequency;
-	if (zol_setfreq(zol, zol->curfreq) != 0) {
-		printk(KERN_WARNING "zoltrix: Set frequency failed.\n");
+	if (zol_setfreq(zol, f->frequency) != 0)
 		return -EINVAL;
-	}
 	return 0;
 }
 
 static int vidioc_g_frequency(struct file *file, void *priv,
 					struct v4l2_frequency *f)
 {
-	struct zol_device *zol = video_drvdata(file);
+	struct zoltrix *zol = video_drvdata(file);
 
 	f->type = V4L2_TUNER_RADIO;
 	f->frequency = zol->curfreq;
@@ -303,14 +285,11 @@ static int vidioc_g_frequency(struct file *file, void *priv,
 static int vidioc_queryctrl(struct file *file, void *priv,
 					struct v4l2_queryctrl *qc)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(radio_qctrl); i++) {
-		if (qc->id && qc->id == radio_qctrl[i].id) {
-			memcpy(qc, &(radio_qctrl[i]),
-						sizeof(*qc));
-			return 0;
-		}
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 65535, 4096, 65535);
 	}
 	return -EINVAL;
 }
@@ -318,7 +297,7 @@ static int vidioc_queryctrl(struct file *file, void *priv,
 static int vidioc_g_ctrl(struct file *file, void *priv,
 				struct v4l2_control *ctrl)
 {
-	struct zol_device *zol = video_drvdata(file);
+	struct zoltrix *zol = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
@@ -334,7 +313,7 @@ static int vidioc_g_ctrl(struct file *file, void *priv,
 static int vidioc_s_ctrl(struct file *file, void *priv,
 				struct v4l2_control *ctrl)
 {
-	struct zol_device *zol = video_drvdata(file);
+	struct zoltrix *zol = video_drvdata(file);
 
 	switch (ctrl->id) {
 	case V4L2_CID_AUDIO_MUTE:
@@ -342,43 +321,30 @@ static int vidioc_s_ctrl(struct file *file, void *priv,
 			zol_mute(zol);
 		else {
 			zol_unmute(zol);
-			zol_setvol(zol,zol->curvol);
+			zol_setvol(zol, zol->curvol);
 		}
 		return 0;
 	case V4L2_CID_AUDIO_VOLUME:
-		zol_setvol(zol,ctrl->value/4096);
+		zol_setvol(zol, ctrl->value / 4096);
 		return 0;
 	}
 	zol->stereo = 1;
-	if (zol_setfreq(zol, zol->curfreq) != 0) {
-		printk(KERN_WARNING "zoltrix: Set frequency failed.\n");
+	if (zol_setfreq(zol, zol->curfreq) != 0)
 		return -EINVAL;
-	}
 #if 0 /*keep*/
 /* FIXME: Implement stereo/mono switch on V4L2 */
-			if (v->mode & VIDEO_SOUND_STEREO) {
-				zol->stereo = 1;
-				zol_setfreq(zol, zol->curfreq);
-			}
-			if (v->mode & VIDEO_SOUND_MONO) {
-				zol->stereo = 0;
-				zol_setfreq(zol, zol->curfreq);
-			}
+	if (v->mode & VIDEO_SOUND_STEREO) {
+		zol->stereo = 1;
+		zol_setfreq(zol, zol->curfreq);
+	}
+	if (v->mode & VIDEO_SOUND_MONO) {
+		zol->stereo = 0;
+		zol_setfreq(zol, zol->curfreq);
+	}
 #endif
 	return -EINVAL;
 }
 
-static int vidioc_g_audio(struct file *file, void *priv,
-					struct v4l2_audio *a)
-{
-	if (a->index > 1)
-		return -EINVAL;
-
-	strcpy(a->name, "Radio");
-	a->capability = V4L2_AUDCAP_STEREO;
-	return 0;
-}
-
 static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 {
 	*i = 0;
@@ -387,37 +353,27 @@ static int vidioc_g_input(struct file *filp, void *priv, unsigned int *i)
 
 static int vidioc_s_input(struct file *filp, void *priv, unsigned int i)
 {
-	if (i != 0)
-		return -EINVAL;
-	return 0;
+	return i ? -EINVAL : 0;
 }
 
-static int vidioc_s_audio(struct file *file, void *priv,
+static int vidioc_g_audio(struct file *file, void *priv,
 					struct v4l2_audio *a)
 {
-	if (a->index != 0)
-		return -EINVAL;
+	a->index = 0;
+	strlcpy(a->name, "Radio", sizeof(a->name));
+	a->capability = V4L2_AUDCAP_STEREO;
 	return 0;
 }
 
-static struct zol_device zoltrix_unit;
-
-static int zoltrix_exclusive_open(struct file *file)
-{
-	return test_and_set_bit(0, &zoltrix_unit.in_use) ? -EBUSY : 0;
-}
-
-static int zoltrix_exclusive_release(struct file *file)
+static int vidioc_s_audio(struct file *file, void *priv,
+					struct v4l2_audio *a)
 {
-	clear_bit(0, &zoltrix_unit.in_use);
-	return 0;
+	return a->index ? -EINVAL : 0;
 }
 
 static const struct v4l2_file_operations zoltrix_fops =
 {
 	.owner		= THIS_MODULE,
-	.open           = zoltrix_exclusive_open,
-	.release        = zoltrix_exclusive_release,
 	.ioctl		= video_ioctl2,
 };
 
@@ -436,67 +392,75 @@ static const struct v4l2_ioctl_ops zoltrix_ioctl_ops = {
 	.vidioc_s_ctrl      = vidioc_s_ctrl,
 };
 
-static struct video_device zoltrix_radio = {
-	.name		= "Zoltrix Radio Plus",
-	.fops           = &zoltrix_fops,
-	.ioctl_ops 	= &zoltrix_ioctl_ops,
-	.release	= video_device_release_empty,
-};
-
 static int __init zoltrix_init(void)
 {
-	if (io == -1) {
-		printk(KERN_ERR "You must set an I/O address with io=0x???\n");
+	struct zoltrix *zol = &zoltrix_card;
+	struct v4l2_device *v4l2_dev = &zol->v4l2_dev;
+	int res;
+
+	strlcpy(v4l2_dev->name, "zoltrix", sizeof(v4l2_dev->name));
+	zol->io = io;
+	if (zol->io == -1) {
+		v4l2_err(v4l2_dev, "You must set an I/O address with io=0x20c or 0x30c\n");
 		return -EINVAL;
 	}
-	if ((io != 0x20c) && (io != 0x30c)) {
-		printk(KERN_ERR "zoltrix: invalid port, try 0x20c or 0x30c\n");
+	if (zol->io != 0x20c && zol->io != 0x30c) {
+		v4l2_err(v4l2_dev, "invalid port, try 0x20c or 0x30c\n");
 		return -ENXIO;
 	}
 
-	video_set_drvdata(&zoltrix_radio, &zoltrix_unit);
-	if (!request_region(io, 2, "zoltrix")) {
-		printk(KERN_ERR "zoltrix: port 0x%x already in use\n", io);
+	if (!request_region(zol->io, 2, "zoltrix")) {
+		v4l2_err(v4l2_dev, "port 0x%x already in use\n", zol->io);
 		return -EBUSY;
 	}
 
-	if (video_register_device(&zoltrix_radio, VFL_TYPE_RADIO, radio_nr) < 0) {
-		release_region(io, 2);
+	res = v4l2_device_register(NULL, v4l2_dev);
+	if (res < 0) {
+		release_region(zol->io, 2);
+		v4l2_err(v4l2_dev, "Could not register v4l2_device\n");
+		return res;
+	}
+
+	strlcpy(zol->vdev.name, v4l2_dev->name, sizeof(zol->vdev.name));
+	zol->vdev.v4l2_dev = v4l2_dev;
+	zol->vdev.fops = &zoltrix_fops;
+	zol->vdev.ioctl_ops = &zoltrix_ioctl_ops;
+	zol->vdev.release = video_device_release_empty;
+	video_set_drvdata(&zol->vdev, zol);
+
+	if (video_register_device(&zol->vdev, VFL_TYPE_RADIO, radio_nr) < 0) {
+		v4l2_device_unregister(v4l2_dev);
+		release_region(zol->io, 2);
 		return -EINVAL;
 	}
-	printk(KERN_INFO "Zoltrix Radio Plus card driver.\n");
+	v4l2_info(v4l2_dev, "Zoltrix Radio Plus card driver.\n");
 
-	mutex_init(&zoltrix_unit.lock);
+	mutex_init(&zol->lock);
 
 	/* mute card - prevents noisy bootups */
 
 	/* this ensures that the volume is all the way down  */
 
-	outb(0, io);
-	outb(0, io);
+	outb(0, zol->io);
+	outb(0, zol->io);
 	msleep(20);
-	inb(io + 3);
+	inb(zol->io + 3);
 
-	zoltrix_unit.curvol = 0;
-	zoltrix_unit.stereo = 1;
+	zol->curvol = 0;
+	zol->stereo = 1;
 
 	return 0;
 }
 
-MODULE_AUTHOR("C.van Schaik");
-MODULE_DESCRIPTION("A driver for the Zoltrix Radio Plus.");
-MODULE_LICENSE("GPL");
-
-module_param(io, int, 0);
-MODULE_PARM_DESC(io, "I/O address of the Zoltrix Radio Plus (0x20c or 0x30c)");
-module_param(radio_nr, int, 0);
-
-static void __exit zoltrix_cleanup_module(void)
+static void __exit zoltrix_exit(void)
 {
-	video_unregister_device(&zoltrix_radio);
-	release_region(io, 2);
+	struct zoltrix *zol = &zoltrix_card;
+
+	video_unregister_device(&zol->vdev);
+	v4l2_device_unregister(&zol->v4l2_dev);
+	release_region(zol->io, 2);
 }
 
 module_init(zoltrix_init);
-module_exit(zoltrix_cleanup_module);
+module_exit(zoltrix_exit);
 
diff --git a/linux/drivers/media/radio/si470x/Kconfig b/linux/drivers/media/radio/si470x/Kconfig
new file mode 100644
index 000000000..a466654ee
--- /dev/null
+++ b/linux/drivers/media/radio/si470x/Kconfig
@@ -0,0 +1,37 @@
+config USB_SI470X
+	tristate "Silicon Labs Si470x FM Radio Receiver support with USB"
+	depends on USB && RADIO_SI470X
+	---help---
+	  This is a driver for USB devices with the Silicon Labs SI470x
+	  chip. Currently these devices are known to work:
+	  - 10c4:818a: Silicon Labs USB FM Radio Reference Design
+	  - 06e1:a155: ADS/Tech FM Radio Receiver (formerly Instant FM Music)
+	  - 1b80:d700: KWorld USB FM Radio SnapMusic Mobile 700 (FM700)
+	  - 10c5:819a: Sanei Electric FM USB Radio (aka DealExtreme.com PCear)
+
+	  Sound is provided by the ALSA USB Audio/MIDI driver. Therefore
+	  if you don't want to use the device solely for RDS receiving,
+	  it is recommended to also select SND_USB_AUDIO.
+
+	  Please have a look at the documentation, especially on how
+	  to redirect the audio stream from the radio to your sound device:
+	  Documentation/video4linux/si470x.txt
+
+	  Say Y here if you want to connect this type of radio to your
+	  computer's USB port.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-usb-si470x.
+
+config I2C_SI470X
+	tristate "Silicon Labs Si470x FM Radio Receiver support with I2C"
+	depends on I2C && RADIO_SI470X && !USB_SI470X
+	---help---
+	  This is a driver for I2C devices with the Silicon Labs SI470x
+	  chip.
+
+	  Say Y here if you want to connect this type of radio to your
+	  computer's I2C port.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-i2c-si470x.
diff --git a/linux/drivers/media/radio/si470x/Makefile b/linux/drivers/media/radio/si470x/Makefile
new file mode 100644
index 000000000..06964816c
--- /dev/null
+++ b/linux/drivers/media/radio/si470x/Makefile
@@ -0,0 +1,9 @@
+#
+# Makefile for radios with Silicon Labs Si470x FM Radio Receivers
+#
+
+radio-usb-si470x-objs	:= radio-si470x-usb.o radio-si470x-common.o
+radio-i2c-si470x-objs	:= radio-si470x-i2c.o radio-si470x-common.o
+
+obj-$(CONFIG_USB_SI470X) += radio-usb-si470x.o
+obj-$(CONFIG_I2C_SI470X) += radio-i2c-si470x.o
diff --git a/linux/drivers/media/radio/si470x/radio-si470x-common.c b/linux/drivers/media/radio/si470x/radio-si470x-common.c
new file mode 100644
index 000000000..f33315f2c
--- /dev/null
+++ b/linux/drivers/media/radio/si470x/radio-si470x-common.c
@@ -0,0 +1,798 @@
+/*
+ *  drivers/media/radio/si470x/radio-si470x-common.c
+ *
+ *  Driver for radios with Silicon Labs Si470x FM Radio Receivers
+ *
+ *  Copyright (c) 2009 Tobias Lorenz <tobias.lorenz@gmx.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/*
+ * History:
+ * 2008-01-12	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Version 1.0.0
+ *		- First working version
+ * 2008-01-13	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Version 1.0.1
+ *		- Improved error handling, every function now returns errno
+ *		- Improved multi user access (start/mute/stop)
+ *		- Channel doesn't get lost anymore after start/mute/stop
+ *		- RDS support added (polling mode via interrupt EP 1)
+ *		- marked default module parameters with *value*
+ *		- switched from bit structs to bit masks
+ *		- header file cleaned and integrated
+ * 2008-01-14	Tobias Lorenz <tobias.lorenz@gmx.net>
+ * 		Version 1.0.2
+ * 		- hex values are now lower case
+ * 		- commented USB ID for ADS/Tech moved on todo list
+ * 		- blacklisted si470x in hid-quirks.c
+ * 		- rds buffer handling functions integrated into *_work, *_read
+ * 		- rds_command in si470x_poll exchanged against simple retval
+ * 		- check for firmware version 15
+ * 		- code order and prototypes still remain the same
+ * 		- spacing and bottom of band codes remain the same
+ * 2008-01-16	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Version 1.0.3
+ * 		- code reordered to avoid function prototypes
+ *		- switch/case defaults are now more user-friendly
+ *		- unified comment style
+ *		- applied all checkpatch.pl v1.12 suggestions
+ *		  except the warning about the too long lines with bit comments
+ *		- renamed FMRADIO to RADIO to cut line length (checkpatch.pl)
+ * 2008-01-22	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Version 1.0.4
+ *		- avoid poss. locking when doing copy_to_user which may sleep
+ *		- RDS is automatically activated on read now
+ *		- code cleaned of unnecessary rds_commands
+ *		- USB Vendor/Product ID for ADS/Tech FM Radio Receiver verified
+ *		  (thanks to Guillaume RAMOUSSE)
+ * 2008-01-27	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Version 1.0.5
+ *		- number of seek_retries changed to tune_timeout
+ *		- fixed problem with incomplete tune operations by own buffers
+ *		- optimization of variables and printf types
+ *		- improved error logging
+ * 2008-01-31	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Oliver Neukum <oliver@neukum.org>
+ *		Version 1.0.6
+ *		- fixed coverity checker warnings in *_usb_driver_disconnect
+ *		- probe()/open() race by correct ordering in probe()
+ *		- DMA coherency rules by separate allocation of all buffers
+ *		- use of endianness macros
+ *		- abuse of spinlock, replaced by mutex
+ *		- racy handling of timer in disconnect,
+ *		  replaced by delayed_work
+ *		- racy interruptible_sleep_on(),
+ *		  replaced with wait_event_interruptible()
+ *		- handle signals in read()
+ * 2008-02-08	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Oliver Neukum <oliver@neukum.org>
+ *		Version 1.0.7
+ *		- usb autosuspend support
+ *		- unplugging fixed
+ * 2008-05-07	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Version 1.0.8
+ *		- hardware frequency seek support
+ *		- afc indication
+ *		- more safety checks, let si470x_get_freq return errno
+ *		- vidioc behavior corrected according to v4l2 spec
+ * 2008-10-20	Alexey Klimov <klimov.linux@gmail.com>
+ * 		- add support for KWorld USB FM Radio FM700
+ * 		- blacklisted KWorld radio in hid-core.c and hid-ids.h
+ * 2008-12-03	Mark Lord <mlord@pobox.com>
+ *		- add support for DealExtreme USB Radio
+ * 2009-01-31	Bob Ross <pigiron@gmx.com>
+ *		- correction of stereo detection/setting
+ *		- correction of signal strength indicator scaling
+ * 2009-01-31	Rick Bronson <rick@efn.org>
+ *		Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		- add LED status output
+ *		- get HW/SW version from scratchpad
+ * 2009-06-16   Edouard Lafargue <edouard@lafargue.name>
+ *		Version 1.0.10
+ *		- add support for interrupt mode for RDS endpoint,
+ *                instead of polling.
+ *                Improves RDS reception significantly
+ */
+
+
+/* kernel includes */
+#include "radio-si470x.h"
+
+
+
+/**************************************************************************
+ * Module Parameters
+ **************************************************************************/
+
+/* Spacing (kHz) */
+/* 0: 200 kHz (USA, Australia) */
+/* 1: 100 kHz (Europe, Japan) */
+/* 2:  50 kHz */
+static unsigned short space = 2;
+module_param(space, ushort, 0444);
+MODULE_PARM_DESC(space, "Spacing: 0=200kHz 1=100kHz *2=50kHz*");
+
+/* Bottom of Band (MHz) */
+/* 0: 87.5 - 108 MHz (USA, Europe)*/
+/* 1: 76   - 108 MHz (Japan wide band) */
+/* 2: 76   -  90 MHz (Japan) */
+static unsigned short band = 1;
+module_param(band, ushort, 0444);
+MODULE_PARM_DESC(band, "Band: 0=87.5..108MHz *1=76..108MHz* 2=76..90MHz");
+
+/* De-emphasis */
+/* 0: 75 us (USA) */
+/* 1: 50 us (Europe, Australia, Japan) */
+static unsigned short de = 1;
+module_param(de, ushort, 0444);
+MODULE_PARM_DESC(de, "De-emphasis: 0=75us *1=50us*");
+
+/* Tune timeout */
+static unsigned int tune_timeout = 3000;
+module_param(tune_timeout, uint, 0644);
+MODULE_PARM_DESC(tune_timeout, "Tune timeout: *3000*");
+
+/* Seek timeout */
+static unsigned int seek_timeout = 5000;
+module_param(seek_timeout, uint, 0644);
+MODULE_PARM_DESC(seek_timeout, "Seek timeout: *5000*");
+
+
+
+/**************************************************************************
+ * Generic Functions
+ **************************************************************************/
+
+/*
+ * si470x_set_chan - set the channel
+ */
+static int si470x_set_chan(struct si470x_device *radio, unsigned short chan)
+{
+	int retval;
+	unsigned long timeout;
+	bool timed_out = 0;
+
+	/* start tuning */
+	radio->registers[CHANNEL] &= ~CHANNEL_CHAN;
+	radio->registers[CHANNEL] |= CHANNEL_TUNE | chan;
+	retval = si470x_set_register(radio, CHANNEL);
+	if (retval < 0)
+		goto done;
+
+	/* wait till tune operation has completed */
+	timeout = jiffies + msecs_to_jiffies(tune_timeout);
+	do {
+		retval = si470x_get_register(radio, STATUSRSSI);
+		if (retval < 0)
+			goto stop;
+		timed_out = time_after(jiffies, timeout);
+	} while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) &&
+		(!timed_out));
+	if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0)
+		dev_warn(&radio->videodev->dev, "tune does not complete\n");
+	if (timed_out)
+		dev_warn(&radio->videodev->dev,
+			"tune timed out after %u ms\n", tune_timeout);
+
+stop:
+	/* stop tuning */
+	radio->registers[CHANNEL] &= ~CHANNEL_TUNE;
+	retval = si470x_set_register(radio, CHANNEL);
+
+done:
+	return retval;
+}
+
+
+/*
+ * si470x_get_freq - get the frequency
+ */
+static int si470x_get_freq(struct si470x_device *radio, unsigned int *freq)
+{
+	unsigned int spacing, band_bottom;
+	unsigned short chan;
+	int retval;
+
+	/* Spacing (kHz) */
+	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) {
+	/* 0: 200 kHz (USA, Australia) */
+	case 0:
+		spacing = 0.200 * FREQ_MUL; break;
+	/* 1: 100 kHz (Europe, Japan) */
+	case 1:
+		spacing = 0.100 * FREQ_MUL; break;
+	/* 2:  50 kHz */
+	default:
+		spacing = 0.050 * FREQ_MUL; break;
+	};
+
+	/* Bottom of Band (MHz) */
+	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
+	/* 0: 87.5 - 108 MHz (USA, Europe) */
+	case 0:
+		band_bottom = 87.5 * FREQ_MUL; break;
+	/* 1: 76   - 108 MHz (Japan wide band) */
+	default:
+		band_bottom = 76   * FREQ_MUL; break;
+	/* 2: 76   -  90 MHz (Japan) */
+	case 2:
+		band_bottom = 76   * FREQ_MUL; break;
+	};
+
+	/* read channel */
+	retval = si470x_get_register(radio, READCHAN);
+	chan = radio->registers[READCHAN] & READCHAN_READCHAN;
+
+	/* Frequency (MHz) = Spacing (kHz) x Channel + Bottom of Band (MHz) */
+	*freq = chan * spacing + band_bottom;
+
+	return retval;
+}
+
+
+/*
+ * si470x_set_freq - set the frequency
+ */
+int si470x_set_freq(struct si470x_device *radio, unsigned int freq)
+{
+	unsigned int spacing, band_bottom;
+	unsigned short chan;
+
+	/* Spacing (kHz) */
+	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) {
+	/* 0: 200 kHz (USA, Australia) */
+	case 0:
+		spacing = 0.200 * FREQ_MUL; break;
+	/* 1: 100 kHz (Europe, Japan) */
+	case 1:
+		spacing = 0.100 * FREQ_MUL; break;
+	/* 2:  50 kHz */
+	default:
+		spacing = 0.050 * FREQ_MUL; break;
+	};
+
+	/* Bottom of Band (MHz) */
+	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
+	/* 0: 87.5 - 108 MHz (USA, Europe) */
+	case 0:
+		band_bottom = 87.5 * FREQ_MUL; break;
+	/* 1: 76   - 108 MHz (Japan wide band) */
+	default:
+		band_bottom = 76   * FREQ_MUL; break;
+	/* 2: 76   -  90 MHz (Japan) */
+	case 2:
+		band_bottom = 76   * FREQ_MUL; break;
+	};
+
+	/* Chan = [ Freq (Mhz) - Bottom of Band (MHz) ] / Spacing (kHz) */
+	chan = (freq - band_bottom) / spacing;
+
+	return si470x_set_chan(radio, chan);
+}
+
+
+/*
+ * si470x_set_seek - set seek
+ */
+static int si470x_set_seek(struct si470x_device *radio,
+		unsigned int wrap_around, unsigned int seek_upward)
+{
+	int retval = 0;
+	unsigned long timeout;
+	bool timed_out = 0;
+
+	/* start seeking */
+	radio->registers[POWERCFG] |= POWERCFG_SEEK;
+	if (wrap_around == 1)
+		radio->registers[POWERCFG] &= ~POWERCFG_SKMODE;
+	else
+		radio->registers[POWERCFG] |= POWERCFG_SKMODE;
+	if (seek_upward == 1)
+		radio->registers[POWERCFG] |= POWERCFG_SEEKUP;
+	else
+		radio->registers[POWERCFG] &= ~POWERCFG_SEEKUP;
+	retval = si470x_set_register(radio, POWERCFG);
+	if (retval < 0)
+		goto done;
+
+	/* wait till seek operation has completed */
+	timeout = jiffies + msecs_to_jiffies(seek_timeout);
+	do {
+		retval = si470x_get_register(radio, STATUSRSSI);
+		if (retval < 0)
+			goto stop;
+		timed_out = time_after(jiffies, timeout);
+	} while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) &&
+		(!timed_out));
+	if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0)
+		dev_warn(&radio->videodev->dev, "seek does not complete\n");
+	if (radio->registers[STATUSRSSI] & STATUSRSSI_SF)
+		dev_warn(&radio->videodev->dev,
+			"seek failed / band limit reached\n");
+	if (timed_out)
+		dev_warn(&radio->videodev->dev,
+			"seek timed out after %u ms\n", seek_timeout);
+
+stop:
+	/* stop seeking */
+	radio->registers[POWERCFG] &= ~POWERCFG_SEEK;
+	retval = si470x_set_register(radio, POWERCFG);
+
+done:
+	/* try again, if timed out */
+	if ((retval == 0) && timed_out)
+		retval = -EAGAIN;
+
+	return retval;
+}
+
+
+/*
+ * si470x_start - switch on radio
+ */
+int si470x_start(struct si470x_device *radio)
+{
+	int retval;
+
+	/* powercfg */
+	radio->registers[POWERCFG] =
+		POWERCFG_DMUTE | POWERCFG_ENABLE | POWERCFG_RDSM;
+	retval = si470x_set_register(radio, POWERCFG);
+	if (retval < 0)
+		goto done;
+
+	/* sysconfig 1 */
+	radio->registers[SYSCONFIG1] = SYSCONFIG1_DE;
+	retval = si470x_set_register(radio, SYSCONFIG1);
+	if (retval < 0)
+		goto done;
+
+	/* sysconfig 2 */
+	radio->registers[SYSCONFIG2] =
+		(0x3f  << 8) |				/* SEEKTH */
+		((band  << 6) & SYSCONFIG2_BAND)  |	/* BAND */
+		((space << 4) & SYSCONFIG2_SPACE) |	/* SPACE */
+		15;					/* VOLUME (max) */
+	retval = si470x_set_register(radio, SYSCONFIG2);
+	if (retval < 0)
+		goto done;
+
+	/* reset last channel */
+	retval = si470x_set_chan(radio,
+		radio->registers[CHANNEL] & CHANNEL_CHAN);
+
+done:
+	return retval;
+}
+
+
+/*
+ * si470x_stop - switch off radio
+ */
+int si470x_stop(struct si470x_device *radio)
+{
+	int retval;
+
+	/* sysconfig 1 */
+	radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
+	retval = si470x_set_register(radio, SYSCONFIG1);
+	if (retval < 0)
+		goto done;
+
+	/* powercfg */
+	radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
+	/* POWERCFG_ENABLE has to automatically go low */
+	radio->registers[POWERCFG] |= POWERCFG_ENABLE |	POWERCFG_DISABLE;
+	retval = si470x_set_register(radio, POWERCFG);
+
+done:
+	return retval;
+}
+
+
+/*
+ * si470x_rds_on - switch on rds reception
+ */
+int si470x_rds_on(struct si470x_device *radio)
+{
+	int retval;
+
+	/* sysconfig 1 */
+	mutex_lock(&radio->lock);
+	radio->registers[SYSCONFIG1] |= SYSCONFIG1_RDS;
+	retval = si470x_set_register(radio, SYSCONFIG1);
+	if (retval < 0)
+		radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
+	mutex_unlock(&radio->lock);
+
+	return retval;
+}
+
+
+
+/**************************************************************************
+ * Video4Linux Interface
+ **************************************************************************/
+
+/*
+ * si470x_vidioc_queryctrl - enumerate control items
+ */
+static int si470x_vidioc_queryctrl(struct file *file, void *priv,
+		struct v4l2_queryctrl *qc)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = -EINVAL;
+
+	/* abort if qc->id is below V4L2_CID_BASE */
+	if (qc->id < V4L2_CID_BASE)
+		goto done;
+
+	/* search video control */
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 15, 1, 15);
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+	}
+
+	/* disable unsupported base controls */
+	/* to satisfy kradio and such apps */
+	if ((retval == -EINVAL) && (qc->id < V4L2_CID_LASTP1)) {
+		qc->flags = V4L2_CTRL_FLAG_DISABLED;
+		retval = 0;
+	}
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"query controls failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_g_ctrl - get the value of a control
+ */
+static int si470x_vidioc_g_ctrl(struct file *file, void *priv,
+		struct v4l2_control *ctrl)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUDIO_VOLUME:
+		ctrl->value = radio->registers[SYSCONFIG2] &
+				SYSCONFIG2_VOLUME;
+		break;
+	case V4L2_CID_AUDIO_MUTE:
+		ctrl->value = ((radio->registers[POWERCFG] &
+				POWERCFG_DMUTE) == 0) ? 1 : 0;
+		break;
+	default:
+		retval = -EINVAL;
+	}
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"get control failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_s_ctrl - set the value of a control
+ */
+static int si470x_vidioc_s_ctrl(struct file *file, void *priv,
+		struct v4l2_control *ctrl)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUDIO_VOLUME:
+		radio->registers[SYSCONFIG2] &= ~SYSCONFIG2_VOLUME;
+		radio->registers[SYSCONFIG2] |= ctrl->value;
+		retval = si470x_set_register(radio, SYSCONFIG2);
+		break;
+	case V4L2_CID_AUDIO_MUTE:
+		if (ctrl->value == 1)
+			radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
+		else
+			radio->registers[POWERCFG] |= POWERCFG_DMUTE;
+		retval = si470x_set_register(radio, POWERCFG);
+		break;
+	default:
+		retval = -EINVAL;
+	}
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"set control failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_g_audio - get audio attributes
+ */
+static int si470x_vidioc_g_audio(struct file *file, void *priv,
+		struct v4l2_audio *audio)
+{
+	/* driver constants */
+	audio->index = 0;
+	strcpy(audio->name, "Radio");
+	audio->capability = V4L2_AUDCAP_STEREO;
+	audio->mode = 0;
+
+	return 0;
+}
+
+
+/*
+ * si470x_vidioc_g_tuner - get tuner attributes
+ */
+static int si470x_vidioc_g_tuner(struct file *file, void *priv,
+		struct v4l2_tuner *tuner)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	if (tuner->index != 0) {
+		retval = -EINVAL;
+		goto done;
+	}
+
+	retval = si470x_get_register(radio, STATUSRSSI);
+	if (retval < 0)
+		goto done;
+
+	/* driver constants */
+	strcpy(tuner->name, "FM");
+	tuner->type = V4L2_TUNER_RADIO;
+#if defined(CONFIG_USB_SI470X) || defined(CONFIG_USB_SI470X_MODULE)
+	tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
+			    V4L2_TUNER_CAP_RDS;
+#else
+	tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
+#endif
+
+	/* range limits */
+	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
+	/* 0: 87.5 - 108 MHz (USA, Europe, default) */
+	default:
+		tuner->rangelow  =  87.5 * FREQ_MUL;
+		tuner->rangehigh = 108   * FREQ_MUL;
+		break;
+	/* 1: 76   - 108 MHz (Japan wide band) */
+	case 1:
+		tuner->rangelow  =  76   * FREQ_MUL;
+		tuner->rangehigh = 108   * FREQ_MUL;
+		break;
+	/* 2: 76   -  90 MHz (Japan) */
+	case 2:
+		tuner->rangelow  =  76   * FREQ_MUL;
+		tuner->rangehigh =  90   * FREQ_MUL;
+		break;
+	};
+
+	/* stereo indicator == stereo (instead of mono) */
+	if ((radio->registers[STATUSRSSI] & STATUSRSSI_ST) == 0)
+		tuner->rxsubchans = V4L2_TUNER_SUB_MONO;
+	else
+		tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
+#if defined(CONFIG_USB_SI470X) || defined(CONFIG_USB_SI470X_MODULE)
+	/* If there is a reliable method of detecting an RDS channel,
+	   then this code should check for that before setting this
+	   RDS subchannel. */
+	tuner->rxsubchans |= V4L2_TUNER_SUB_RDS;
+#endif
+
+	/* mono/stereo selector */
+	if ((radio->registers[POWERCFG] & POWERCFG_MONO) == 0)
+		tuner->audmode = V4L2_TUNER_MODE_STEREO;
+	else
+		tuner->audmode = V4L2_TUNER_MODE_MONO;
+
+	/* min is worst, max is best; signal:0..0xffff; rssi: 0..0xff */
+	/* measured in units of db쨉V in 1 db increments (max at ~75 db쨉V) */
+	tuner->signal = (radio->registers[STATUSRSSI] & STATUSRSSI_RSSI);
+	/* the ideal factor is 0xffff/75 = 873,8 */
+	tuner->signal = (tuner->signal * 873) + (8 * tuner->signal / 10);
+
+	/* automatic frequency control: -1: freq to low, 1 freq to high */
+	/* AFCRL does only indicate that freq. differs, not if too low/high */
+	tuner->afc = (radio->registers[STATUSRSSI] & STATUSRSSI_AFCRL) ? 1 : 0;
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"get tuner failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_s_tuner - set tuner attributes
+ */
+static int si470x_vidioc_s_tuner(struct file *file, void *priv,
+		struct v4l2_tuner *tuner)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = -EINVAL;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	if (tuner->index != 0)
+		goto done;
+
+	/* mono/stereo selector */
+	switch (tuner->audmode) {
+	case V4L2_TUNER_MODE_MONO:
+		radio->registers[POWERCFG] |= POWERCFG_MONO;  /* force mono */
+		break;
+	case V4L2_TUNER_MODE_STEREO:
+		radio->registers[POWERCFG] &= ~POWERCFG_MONO; /* try stereo */
+		break;
+	default:
+		goto done;
+	}
+
+	retval = si470x_set_register(radio, POWERCFG);
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"set tuner failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_g_frequency - get tuner or modulator radio frequency
+ */
+static int si470x_vidioc_g_frequency(struct file *file, void *priv,
+		struct v4l2_frequency *freq)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	if (freq->tuner != 0) {
+		retval = -EINVAL;
+		goto done;
+	}
+
+	freq->type = V4L2_TUNER_RADIO;
+	retval = si470x_get_freq(radio, &freq->frequency);
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"get frequency failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_s_frequency - set tuner or modulator radio frequency
+ */
+static int si470x_vidioc_s_frequency(struct file *file, void *priv,
+		struct v4l2_frequency *freq)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	if (freq->tuner != 0) {
+		retval = -EINVAL;
+		goto done;
+	}
+
+	retval = si470x_set_freq(radio, freq->frequency);
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"set frequency failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_s_hw_freq_seek - set hardware frequency seek
+ */
+static int si470x_vidioc_s_hw_freq_seek(struct file *file, void *priv,
+		struct v4l2_hw_freq_seek *seek)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	if (seek->tuner != 0) {
+		retval = -EINVAL;
+		goto done;
+	}
+
+	retval = si470x_set_seek(radio, seek->wrap_around, seek->seek_upward);
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"set hardware frequency seek failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_ioctl_ops - video device ioctl operations
+ */
+static const struct v4l2_ioctl_ops si470x_ioctl_ops = {
+	.vidioc_querycap	= si470x_vidioc_querycap,
+	.vidioc_queryctrl	= si470x_vidioc_queryctrl,
+	.vidioc_g_ctrl		= si470x_vidioc_g_ctrl,
+	.vidioc_s_ctrl		= si470x_vidioc_s_ctrl,
+	.vidioc_g_audio		= si470x_vidioc_g_audio,
+	.vidioc_g_tuner		= si470x_vidioc_g_tuner,
+	.vidioc_s_tuner		= si470x_vidioc_s_tuner,
+	.vidioc_g_frequency	= si470x_vidioc_g_frequency,
+	.vidioc_s_frequency	= si470x_vidioc_s_frequency,
+	.vidioc_s_hw_freq_seek	= si470x_vidioc_s_hw_freq_seek,
+};
+
+
+/*
+ * si470x_viddev_template - video device interface
+ */
+struct video_device si470x_viddev_template = {
+	.fops			= &si470x_fops,
+	.name			= DRIVER_NAME,
+	.release		= video_device_release,
+	.ioctl_ops		= &si470x_ioctl_ops,
+};
diff --git a/linux/drivers/media/radio/si470x/radio-si470x-i2c.c b/linux/drivers/media/radio/si470x/radio-si470x-i2c.c
new file mode 100644
index 000000000..2d53b6a94
--- /dev/null
+++ b/linux/drivers/media/radio/si470x/radio-si470x-i2c.c
@@ -0,0 +1,401 @@
+/*
+ * drivers/media/radio/si470x/radio-si470x-i2c.c
+ *
+ * I2C driver for radios with Silicon Labs Si470x FM Radio Receivers
+ *
+ * Copyright (c) 2009 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/*
+ * ToDo:
+ * - RDS support
+ */
+
+
+/* driver definitions */
+#define DRIVER_AUTHOR "Joonyoung Shim <jy0922.shim@samsung.com>";
+#define DRIVER_KERNEL_VERSION KERNEL_VERSION(1, 0, 0)
+#define DRIVER_CARD "Silicon Labs Si470x FM Radio Receiver"
+#define DRIVER_DESC "I2C radio driver for Si470x FM Radio Receivers"
+#define DRIVER_VERSION "1.0.0"
+
+/* kernel includes */
+#include <linux/i2c.h>
+#include <linux/delay.h>
+
+#include "radio-si470x.h"
+
+
+/* I2C Device ID List */
+static const struct i2c_device_id si470x_i2c_id[] = {
+	/* Generic Entry */
+	{ "si470x", 0 },
+	/* Terminating entry */
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, si470x_i2c_id);
+
+
+
+/**************************************************************************
+ * Module Parameters
+ **************************************************************************/
+
+/* Radio Nr */
+static int radio_nr = -1;
+module_param(radio_nr, int, 0444);
+MODULE_PARM_DESC(radio_nr, "Radio Nr");
+
+
+
+/**************************************************************************
+ * I2C Definitions
+ **************************************************************************/
+
+/* Write starts with the upper byte of register 0x02 */
+#define WRITE_REG_NUM		8
+#define WRITE_INDEX(i)		(i + 0x02)
+
+/* Read starts with the upper byte of register 0x0a */
+#define READ_REG_NUM		RADIO_REGISTER_NUM
+#define READ_INDEX(i)		((i + RADIO_REGISTER_NUM - 0x0a) % READ_REG_NUM)
+
+
+
+/**************************************************************************
+ * General Driver Functions - REGISTERs
+ **************************************************************************/
+
+/*
+ * si470x_get_register - read register
+ */
+int si470x_get_register(struct si470x_device *radio, int regnr)
+{
+	u16 buf[READ_REG_NUM];
+	struct i2c_msg msgs[1] = {
+		{ radio->client->addr, I2C_M_RD, sizeof(u16) * READ_REG_NUM,
+			(void *)buf },
+	};
+
+	if (i2c_transfer(radio->client->adapter, msgs, 1) != 1)
+		return -EIO;
+
+	radio->registers[regnr] = __be16_to_cpu(buf[READ_INDEX(regnr)]);
+
+	return 0;
+}
+
+
+/*
+ * si470x_set_register - write register
+ */
+int si470x_set_register(struct si470x_device *radio, int regnr)
+{
+	int i;
+	u16 buf[WRITE_REG_NUM];
+	struct i2c_msg msgs[1] = {
+		{ radio->client->addr, 0, sizeof(u16) * WRITE_REG_NUM,
+			(void *)buf },
+	};
+
+	for (i = 0; i < WRITE_REG_NUM; i++)
+		buf[i] = __cpu_to_be16(radio->registers[WRITE_INDEX(i)]);
+
+	if (i2c_transfer(radio->client->adapter, msgs, 1) != 1)
+		return -EIO;
+
+	return 0;
+}
+
+
+
+/**************************************************************************
+ * General Driver Functions - ENTIRE REGISTERS
+ **************************************************************************/
+
+/*
+ * si470x_get_all_registers - read entire registers
+ */
+static int si470x_get_all_registers(struct si470x_device *radio)
+{
+	int i;
+	u16 buf[READ_REG_NUM];
+	struct i2c_msg msgs[1] = {
+		{ radio->client->addr, I2C_M_RD, sizeof(u16) * READ_REG_NUM,
+			(void *)buf },
+	};
+
+	if (i2c_transfer(radio->client->adapter, msgs, 1) != 1)
+		return -EIO;
+
+	for (i = 0; i < READ_REG_NUM; i++)
+		radio->registers[i] = __be16_to_cpu(buf[READ_INDEX(i)]);
+
+	return 0;
+}
+
+
+
+/**************************************************************************
+ * General Driver Functions - DISCONNECT_CHECK
+ **************************************************************************/
+
+/*
+ * si470x_disconnect_check - check whether radio disconnects
+ */
+int si470x_disconnect_check(struct si470x_device *radio)
+{
+	return 0;
+}
+
+
+
+/**************************************************************************
+ * File Operations Interface
+ **************************************************************************/
+
+/*
+ * si470x_fops_open - file open
+ */
+static int si470x_fops_open(struct file *file)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	mutex_lock(&radio->lock);
+	radio->users++;
+
+	if (radio->users == 1)
+		/* start radio */
+		retval = si470x_start(radio);
+
+	mutex_unlock(&radio->lock);
+
+	return retval;
+}
+
+
+/*
+ * si470x_fops_release - file release
+ */
+static int si470x_fops_release(struct file *file)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety check */
+	if (!radio)
+		return -ENODEV;
+
+	mutex_lock(&radio->lock);
+	radio->users--;
+	if (radio->users == 0)
+		/* stop radio */
+		retval = si470x_stop(radio);
+
+	mutex_unlock(&radio->lock);
+
+	return retval;
+}
+
+
+/*
+ * si470x_fops - file operations interface
+ */
+const struct v4l2_file_operations si470x_fops = {
+	.owner		= THIS_MODULE,
+	.ioctl		= video_ioctl2,
+	.open		= si470x_fops_open,
+	.release	= si470x_fops_release,
+};
+
+
+
+/**************************************************************************
+ * Video4Linux Interface
+ **************************************************************************/
+
+/*
+ * si470x_vidioc_querycap - query device capabilities
+ */
+int si470x_vidioc_querycap(struct file *file, void *priv,
+		struct v4l2_capability *capability)
+{
+	strlcpy(capability->driver, DRIVER_NAME, sizeof(capability->driver));
+	strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
+	capability->version = DRIVER_KERNEL_VERSION;
+	capability->capabilities = V4L2_CAP_HW_FREQ_SEEK |
+		V4L2_CAP_TUNER | V4L2_CAP_RADIO;
+
+	return 0;
+}
+
+
+
+/**************************************************************************
+ * I2C Interface
+ **************************************************************************/
+
+/*
+ * si470x_i2c_probe - probe for the device
+ */
+static int __devinit si470x_i2c_probe(struct i2c_client *client,
+		const struct i2c_device_id *id)
+{
+	struct si470x_device *radio;
+	int retval = 0;
+	unsigned char version_warning = 0;
+
+	/* private data allocation and initialization */
+	radio = kzalloc(sizeof(struct si470x_device), GFP_KERNEL);
+	if (!radio) {
+		retval = -ENOMEM;
+		goto err_initial;
+	}
+	radio->users = 0;
+	radio->client = client;
+	mutex_init(&radio->lock);
+
+	/* video device allocation and initialization */
+	radio->videodev = video_device_alloc();
+	if (!radio->videodev) {
+		retval = -ENOMEM;
+		goto err_radio;
+	}
+	memcpy(radio->videodev, &si470x_viddev_template,
+			sizeof(si470x_viddev_template));
+	video_set_drvdata(radio->videodev, radio);
+
+	/* power up : need 110ms */
+	radio->registers[POWERCFG] = POWERCFG_ENABLE;
+	if (si470x_set_register(radio, POWERCFG) < 0) {
+		retval = -EIO;
+		goto err_all;
+	}
+	msleep(110);
+
+	/* get device and chip versions */
+	if (si470x_get_all_registers(radio) < 0) {
+		retval = -EIO;
+		goto err_video;
+	}
+	dev_info(&client->dev, "DeviceID=0x%4.4hx ChipID=0x%4.4hx\n",
+			radio->registers[DEVICEID], radio->registers[CHIPID]);
+	if ((radio->registers[CHIPID] & CHIPID_FIRMWARE) < RADIO_FW_VERSION) {
+		dev_warn(&client->dev,
+			"This driver is known to work with "
+			"firmware version %hu,\n", RADIO_FW_VERSION);
+		dev_warn(&client->dev,
+			"but the device has firmware version %hu.\n",
+			radio->registers[CHIPID] & CHIPID_FIRMWARE);
+		version_warning = 1;
+	}
+
+	/* give out version warning */
+	if (version_warning == 1) {
+		dev_warn(&client->dev,
+			"If you have some trouble using this driver,\n");
+		dev_warn(&client->dev,
+			"please report to V4L ML at "
+			"linux-media@vger.kernel.org\n");
+	}
+
+	/* set initial frequency */
+	si470x_set_freq(radio, 87.5 * FREQ_MUL); /* available in all regions */
+
+	/* register video device */
+	retval = video_register_device(radio->videodev, VFL_TYPE_RADIO,
+			radio_nr);
+	if (retval) {
+		dev_warn(&client->dev, "Could not register video device\n");
+		goto err_all;
+	}
+	i2c_set_clientdata(client, radio);
+
+	return 0;
+err_all:
+err_video:
+	video_device_release(radio->videodev);
+err_radio:
+	kfree(radio);
+err_initial:
+	return retval;
+}
+
+
+/*
+ * si470x_i2c_remove - remove the device
+ */
+static __devexit int si470x_i2c_remove(struct i2c_client *client)
+{
+	struct si470x_device *radio = i2c_get_clientdata(client);
+
+	video_unregister_device(radio->videodev);
+	kfree(radio);
+	i2c_set_clientdata(client, NULL);
+
+	return 0;
+}
+
+
+/*
+ * si470x_i2c_driver - i2c driver interface
+ */
+static struct i2c_driver si470x_i2c_driver = {
+	.driver = {
+		.name		= "si470x",
+		.owner		= THIS_MODULE,
+	},
+	.probe			= si470x_i2c_probe,
+	.remove			= __devexit_p(si470x_i2c_remove),
+	.id_table		= si470x_i2c_id,
+};
+
+
+
+/**************************************************************************
+ * Module Interface
+ **************************************************************************/
+
+/*
+ * si470x_i2c_init - module init
+ */
+static int __init si470x_i2c_init(void)
+{
+	printk(KERN_INFO DRIVER_DESC ", Version " DRIVER_VERSION "\n");
+	return i2c_add_driver(&si470x_i2c_driver);
+}
+
+
+/*
+ * si470x_i2c_exit - module exit
+ */
+static void __exit si470x_i2c_exit(void)
+{
+	i2c_del_driver(&si470x_i2c_driver);
+}
+
+
+module_init(si470x_i2c_init);
+module_exit(si470x_i2c_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
diff --git a/linux/drivers/media/radio/si470x/radio-si470x-usb.c b/linux/drivers/media/radio/si470x/radio-si470x-usb.c
new file mode 100644
index 000000000..f2d0e1ddb
--- /dev/null
+++ b/linux/drivers/media/radio/si470x/radio-si470x-usb.c
@@ -0,0 +1,988 @@
+/*
+ *  drivers/media/radio/si470x/radio-si470x-usb.c
+ *
+ *  USB driver for radios with Silicon Labs Si470x FM Radio Receivers
+ *
+ *  Copyright (c) 2009 Tobias Lorenz <tobias.lorenz@gmx.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/*
+ * ToDo:
+ * - add firmware download/update support
+ */
+
+
+/* driver definitions */
+#define DRIVER_AUTHOR "Tobias Lorenz <tobias.lorenz@gmx.net>"
+#define DRIVER_KERNEL_VERSION KERNEL_VERSION(1, 0, 10)
+#define DRIVER_CARD "Silicon Labs Si470x FM Radio Receiver"
+#define DRIVER_DESC "USB radio driver for Si470x FM Radio Receivers"
+#define DRIVER_VERSION "1.0.10"
+
+/* kernel includes */
+#include <linux/usb.h>
+#include <linux/hid.h>
+
+#include "radio-si470x.h"
+
+
+/* USB Device ID List */
+static struct usb_device_id si470x_usb_driver_id_table[] = {
+	/* Silicon Labs USB FM Radio Reference Design */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x10c4, 0x818a, USB_CLASS_HID, 0, 0) },
+	/* ADS/Tech FM Radio Receiver (formerly Instant FM Music) */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x06e1, 0xa155, USB_CLASS_HID, 0, 0) },
+	/* KWorld USB FM Radio SnapMusic Mobile 700 (FM700) */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x1b80, 0xd700, USB_CLASS_HID, 0, 0) },
+	/* Sanei Electric, Inc. FM USB Radio (sold as DealExtreme.com PCear) */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x10c5, 0x819a, USB_CLASS_HID, 0, 0) },
+	/* Terminating entry */
+	{ }
+};
+MODULE_DEVICE_TABLE(usb, si470x_usb_driver_id_table);
+
+
+
+/**************************************************************************
+ * Module Parameters
+ **************************************************************************/
+
+/* Radio Nr */
+static int radio_nr = -1;
+module_param(radio_nr, int, 0444);
+MODULE_PARM_DESC(radio_nr, "Radio Nr");
+
+/* USB timeout */
+static unsigned int usb_timeout = 500;
+module_param(usb_timeout, uint, 0644);
+MODULE_PARM_DESC(usb_timeout, "USB timeout (ms): *500*");
+
+/* RDS buffer blocks */
+static unsigned int rds_buf = 100;
+module_param(rds_buf, uint, 0444);
+MODULE_PARM_DESC(rds_buf, "RDS buffer entries: *100*");
+
+/* RDS maximum block errors */
+static unsigned short max_rds_errors = 1;
+/* 0 means   0  errors requiring correction */
+/* 1 means 1-2  errors requiring correction (used by original USBRadio.exe) */
+/* 2 means 3-5  errors requiring correction */
+/* 3 means   6+ errors or errors in checkword, correction not possible */
+module_param(max_rds_errors, ushort, 0644);
+MODULE_PARM_DESC(max_rds_errors, "RDS maximum block errors: *1*");
+
+
+
+/**************************************************************************
+ * USB HID Reports
+ **************************************************************************/
+
+/* Reports 1-16 give direct read/write access to the 16 Si470x registers */
+/* with the (REPORT_ID - 1) corresponding to the register address across USB */
+/* endpoint 0 using GET_REPORT and SET_REPORT */
+#define REGISTER_REPORT_SIZE	(RADIO_REGISTER_SIZE + 1)
+#define REGISTER_REPORT(reg)	((reg) + 1)
+
+/* Report 17 gives direct read/write access to the entire Si470x register */
+/* map across endpoint 0 using GET_REPORT and SET_REPORT */
+#define ENTIRE_REPORT_SIZE	(RADIO_REGISTER_NUM * RADIO_REGISTER_SIZE + 1)
+#define ENTIRE_REPORT		17
+
+/* Report 18 is used to send the lowest 6 Si470x registers up the HID */
+/* interrupt endpoint 1 to Windows every 20 milliseconds for status */
+#define RDS_REPORT_SIZE		(RDS_REGISTER_NUM * RADIO_REGISTER_SIZE + 1)
+#define RDS_REPORT		18
+
+/* Report 19: LED state */
+#define LED_REPORT_SIZE		3
+#define LED_REPORT		19
+
+/* Report 19: stream */
+#define STREAM_REPORT_SIZE	3
+#define STREAM_REPORT		19
+
+/* Report 20: scratch */
+#define SCRATCH_PAGE_SIZE	63
+#define SCRATCH_REPORT_SIZE	(SCRATCH_PAGE_SIZE + 1)
+#define SCRATCH_REPORT		20
+
+/* Reports 19-22: flash upgrade of the C8051F321 */
+#define WRITE_REPORT_SIZE	4
+#define WRITE_REPORT		19
+#define FLASH_REPORT_SIZE	64
+#define FLASH_REPORT		20
+#define CRC_REPORT_SIZE		3
+#define CRC_REPORT		21
+#define RESPONSE_REPORT_SIZE	2
+#define RESPONSE_REPORT		22
+
+/* Report 23: currently unused, but can accept 60 byte reports on the HID */
+/* interrupt out endpoint 2 every 1 millisecond */
+#define UNUSED_REPORT		23
+
+
+
+/**************************************************************************
+ * Software/Hardware Versions from Scratch Page
+ **************************************************************************/
+#define RADIO_SW_VERSION_NOT_BOOTLOADABLE	6
+#define RADIO_SW_VERSION			7
+#define RADIO_HW_VERSION			1
+
+
+
+/**************************************************************************
+ * LED State Definitions
+ **************************************************************************/
+#define LED_COMMAND		0x35
+
+#define NO_CHANGE_LED		0x00
+#define ALL_COLOR_LED		0x01	/* streaming state */
+#define BLINK_GREEN_LED		0x02	/* connect state */
+#define BLINK_RED_LED		0x04
+#define BLINK_ORANGE_LED	0x10	/* disconnect state */
+#define SOLID_GREEN_LED		0x20	/* tuning/seeking state */
+#define SOLID_RED_LED		0x40	/* bootload state */
+#define SOLID_ORANGE_LED	0x80
+
+
+
+/**************************************************************************
+ * Stream State Definitions
+ **************************************************************************/
+#define STREAM_COMMAND	0x36
+#define STREAM_VIDPID	0x00
+#define STREAM_AUDIO	0xff
+
+
+
+/**************************************************************************
+ * Bootloader / Flash Commands
+ **************************************************************************/
+
+/* unique id sent to bootloader and required to put into a bootload state */
+#define UNIQUE_BL_ID		0x34
+
+/* mask for the flash data */
+#define FLASH_DATA_MASK		0x55
+
+/* bootloader commands */
+#define GET_SW_VERSION_COMMAND	0x00
+#define SET_PAGE_COMMAND	0x01
+#define ERASE_PAGE_COMMAND	0x02
+#define WRITE_PAGE_COMMAND	0x03
+#define CRC_ON_PAGE_COMMAND	0x04
+#define READ_FLASH_BYTE_COMMAND	0x05
+#define RESET_DEVICE_COMMAND	0x06
+#define GET_HW_VERSION_COMMAND	0x07
+#define BLANK			0xff
+
+/* bootloader command responses */
+#define COMMAND_OK		0x01
+#define COMMAND_FAILED		0x02
+#define COMMAND_PENDING		0x03
+
+
+
+/**************************************************************************
+ * General Driver Functions - REGISTER_REPORTs
+ **************************************************************************/
+
+/*
+ * si470x_get_report - receive a HID report
+ */
+static int si470x_get_report(struct si470x_device *radio, void *buf, int size)
+{
+	unsigned char *report = (unsigned char *) buf;
+	int retval;
+
+	retval = usb_control_msg(radio->usbdev,
+		usb_rcvctrlpipe(radio->usbdev, 0),
+		HID_REQ_GET_REPORT,
+		USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
+		report[0], 2,
+		buf, size, usb_timeout);
+
+	if (retval < 0)
+		dev_warn(&radio->intf->dev,
+			"si470x_get_report: usb_control_msg returned %d\n",
+			retval);
+	return retval;
+}
+
+
+/*
+ * si470x_set_report - send a HID report
+ */
+static int si470x_set_report(struct si470x_device *radio, void *buf, int size)
+{
+	unsigned char *report = (unsigned char *) buf;
+	int retval;
+
+	retval = usb_control_msg(radio->usbdev,
+		usb_sndctrlpipe(radio->usbdev, 0),
+		HID_REQ_SET_REPORT,
+		USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
+		report[0], 2,
+		buf, size, usb_timeout);
+
+	if (retval < 0)
+		dev_warn(&radio->intf->dev,
+			"si470x_set_report: usb_control_msg returned %d\n",
+			retval);
+	return retval;
+}
+
+
+/*
+ * si470x_get_register - read register
+ */
+int si470x_get_register(struct si470x_device *radio, int regnr)
+{
+	unsigned char buf[REGISTER_REPORT_SIZE];
+	int retval;
+
+	buf[0] = REGISTER_REPORT(regnr);
+
+	retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
+
+	if (retval >= 0)
+		radio->registers[regnr] = get_unaligned_be16(&buf[1]);
+
+	return (retval < 0) ? -EINVAL : 0;
+}
+
+
+/*
+ * si470x_set_register - write register
+ */
+int si470x_set_register(struct si470x_device *radio, int regnr)
+{
+	unsigned char buf[REGISTER_REPORT_SIZE];
+	int retval;
+
+	buf[0] = REGISTER_REPORT(regnr);
+	put_unaligned_be16(radio->registers[regnr], &buf[1]);
+
+	retval = si470x_set_report(radio, (void *) &buf, sizeof(buf));
+
+	return (retval < 0) ? -EINVAL : 0;
+}
+
+
+
+/**************************************************************************
+ * General Driver Functions - ENTIRE_REPORT
+ **************************************************************************/
+
+/*
+ * si470x_get_all_registers - read entire registers
+ */
+static int si470x_get_all_registers(struct si470x_device *radio)
+{
+	unsigned char buf[ENTIRE_REPORT_SIZE];
+	int retval;
+	unsigned char regnr;
+
+	buf[0] = ENTIRE_REPORT;
+
+	retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
+
+	if (retval >= 0)
+		for (regnr = 0; regnr < RADIO_REGISTER_NUM; regnr++)
+			radio->registers[regnr] = get_unaligned_be16(
+				&buf[regnr * RADIO_REGISTER_SIZE + 1]);
+
+	return (retval < 0) ? -EINVAL : 0;
+}
+
+
+
+/**************************************************************************
+ * General Driver Functions - LED_REPORT
+ **************************************************************************/
+
+/*
+ * si470x_set_led_state - sets the led state
+ */
+static int si470x_set_led_state(struct si470x_device *radio,
+		unsigned char led_state)
+{
+	unsigned char buf[LED_REPORT_SIZE];
+	int retval;
+
+	buf[0] = LED_REPORT;
+	buf[1] = LED_COMMAND;
+	buf[2] = led_state;
+
+	retval = si470x_set_report(radio, (void *) &buf, sizeof(buf));
+
+	return (retval < 0) ? -EINVAL : 0;
+}
+
+
+
+/**************************************************************************
+ * General Driver Functions - SCRATCH_REPORT
+ **************************************************************************/
+
+/*
+ * si470x_get_scratch_versions - gets the scratch page and version infos
+ */
+static int si470x_get_scratch_page_versions(struct si470x_device *radio)
+{
+	unsigned char buf[SCRATCH_REPORT_SIZE];
+	int retval;
+
+	buf[0] = SCRATCH_REPORT;
+
+	retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
+
+	if (retval < 0)
+		dev_warn(&radio->intf->dev, "si470x_get_scratch: "
+			"si470x_get_report returned %d\n", retval);
+	else {
+		radio->software_version = buf[1];
+		radio->hardware_version = buf[2];
+	}
+
+	return (retval < 0) ? -EINVAL : 0;
+}
+
+
+
+/**************************************************************************
+ * General Driver Functions - DISCONNECT_CHECK
+ **************************************************************************/
+
+/*
+ * si470x_disconnect_check - check whether radio disconnects
+ */
+int si470x_disconnect_check(struct si470x_device *radio)
+{
+	if (radio->disconnected)
+		return -EIO;
+	else
+		return 0;
+}
+
+
+
+/**************************************************************************
+ * RDS Driver Functions
+ **************************************************************************/
+
+/*
+ * si470x_int_in_callback - rds callback and processing function
+ *
+ * TODO: do we need to use mutex locks in some sections?
+ */
+static void si470x_int_in_callback(struct urb *urb)
+{
+	struct si470x_device *radio = urb->context;
+	unsigned char buf[RDS_REPORT_SIZE];
+	int retval;
+	unsigned char regnr;
+	unsigned char blocknum;
+	unsigned short bler; /* rds block errors */
+	unsigned short rds;
+	unsigned char tmpbuf[3];
+
+	if (urb->status) {
+		if (urb->status == -ENOENT ||
+				urb->status == -ECONNRESET ||
+				urb->status == -ESHUTDOWN) {
+			return;
+		} else {
+			dev_warn(&radio->intf->dev,
+			 "non-zero urb status (%d)\n", urb->status);
+			goto resubmit; /* Maybe we can recover. */
+		}
+	}
+
+	/* safety checks */
+	if (radio->disconnected)
+		return;
+	if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
+		goto resubmit;
+
+	if (urb->actual_length > 0) {
+		/* Update RDS registers with URB data */
+		buf[0] = RDS_REPORT;
+		for (regnr = 0; regnr < RDS_REGISTER_NUM; regnr++)
+			radio->registers[STATUSRSSI + regnr] =
+			    get_unaligned_be16(&radio->int_in_buffer[
+				regnr * RADIO_REGISTER_SIZE + 1]);
+		/* get rds blocks */
+		if ((radio->registers[STATUSRSSI] & STATUSRSSI_RDSR) == 0) {
+			/* No RDS group ready, better luck next time */
+			goto resubmit;
+		}
+		if ((radio->registers[STATUSRSSI] & STATUSRSSI_RDSS) == 0) {
+			/* RDS decoder not synchronized */
+			goto resubmit;
+		}
+		for (blocknum = 0; blocknum < 4; blocknum++) {
+			switch (blocknum) {
+			default:
+				bler = (radio->registers[STATUSRSSI] &
+						STATUSRSSI_BLERA) >> 9;
+				rds = radio->registers[RDSA];
+				break;
+			case 1:
+				bler = (radio->registers[READCHAN] &
+						READCHAN_BLERB) >> 14;
+				rds = radio->registers[RDSB];
+				break;
+			case 2:
+				bler = (radio->registers[READCHAN] &
+						READCHAN_BLERC) >> 12;
+				rds = radio->registers[RDSC];
+				break;
+			case 3:
+				bler = (radio->registers[READCHAN] &
+						READCHAN_BLERD) >> 10;
+				rds = radio->registers[RDSD];
+				break;
+			};
+
+			/* Fill the V4L2 RDS buffer */
+			put_unaligned_le16(rds, &tmpbuf);
+			tmpbuf[2] = blocknum;		/* offset name */
+			tmpbuf[2] |= blocknum << 3;	/* received offset */
+			if (bler > max_rds_errors)
+				tmpbuf[2] |= 0x80; /* uncorrectable errors */
+			else if (bler > 0)
+				tmpbuf[2] |= 0x40; /* corrected error(s) */
+
+			/* copy RDS block to internal buffer */
+			memcpy(&radio->buffer[radio->wr_index], &tmpbuf, 3);
+			radio->wr_index += 3;
+
+			/* wrap write pointer */
+			if (radio->wr_index >= radio->buf_size)
+				radio->wr_index = 0;
+
+			/* check for overflow */
+			if (radio->wr_index == radio->rd_index) {
+				/* increment and wrap read pointer */
+				radio->rd_index += 3;
+				if (radio->rd_index >= radio->buf_size)
+					radio->rd_index = 0;
+			}
+		}
+		if (radio->wr_index != radio->rd_index)
+			wake_up_interruptible(&radio->read_queue);
+	}
+
+resubmit:
+	/* Resubmit if we're still running. */
+	if (radio->int_in_running && radio->usbdev) {
+		retval = usb_submit_urb(radio->int_in_urb, GFP_ATOMIC);
+		if (retval) {
+			dev_warn(&radio->intf->dev,
+			       "resubmitting urb failed (%d)", retval);
+			radio->int_in_running = 0;
+		}
+	}
+}
+
+
+
+/**************************************************************************
+ * File Operations Interface
+ **************************************************************************/
+
+/*
+ * si470x_fops_read - read RDS data
+ */
+static ssize_t si470x_fops_read(struct file *file, char __user *buf,
+		size_t count, loff_t *ppos)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+	unsigned int block_count = 0;
+
+	/* switch on rds reception */
+	if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
+		si470x_rds_on(radio);
+
+	/* block if no new data available */
+	while (radio->wr_index == radio->rd_index) {
+		if (file->f_flags & O_NONBLOCK) {
+			retval = -EWOULDBLOCK;
+			goto done;
+		}
+		if (wait_event_interruptible(radio->read_queue,
+			radio->wr_index != radio->rd_index) < 0) {
+			retval = -EINTR;
+			goto done;
+		}
+	}
+
+	/* calculate block count from byte count */
+	count /= 3;
+
+	/* copy RDS block out of internal buffer and to user buffer */
+	mutex_lock(&radio->lock);
+	while (block_count < count) {
+		if (radio->rd_index == radio->wr_index)
+			break;
+
+		/* always transfer rds complete blocks */
+		if (copy_to_user(buf, &radio->buffer[radio->rd_index], 3))
+			/* retval = -EFAULT; */
+			break;
+
+		/* increment and wrap read pointer */
+		radio->rd_index += 3;
+		if (radio->rd_index >= radio->buf_size)
+			radio->rd_index = 0;
+
+		/* increment counters */
+		block_count++;
+		buf += 3;
+		retval += 3;
+	}
+	mutex_unlock(&radio->lock);
+
+done:
+	return retval;
+}
+
+
+/*
+ * si470x_fops_poll - poll RDS data
+ */
+static unsigned int si470x_fops_poll(struct file *file,
+		struct poll_table_struct *pts)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* switch on rds reception */
+	if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
+		si470x_rds_on(radio);
+
+	poll_wait(file, &radio->read_queue, pts);
+
+	if (radio->rd_index != radio->wr_index)
+		retval = POLLIN | POLLRDNORM;
+
+	return retval;
+}
+
+
+/*
+ * si470x_fops_open - file open
+ */
+static int si470x_fops_open(struct file *file)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval;
+
+	lock_kernel();
+	radio->users++;
+
+	retval = usb_autopm_get_interface(radio->intf);
+	if (retval < 0) {
+		radio->users--;
+		retval = -EIO;
+		goto done;
+	}
+
+	if (radio->users == 1) {
+		/* start radio */
+		retval = si470x_start(radio);
+		if (retval < 0) {
+			usb_autopm_put_interface(radio->intf);
+			goto done;
+		}
+
+		/* initialize interrupt urb */
+		usb_fill_int_urb(radio->int_in_urb, radio->usbdev,
+			usb_rcvintpipe(radio->usbdev,
+			radio->int_in_endpoint->bEndpointAddress),
+			radio->int_in_buffer,
+			le16_to_cpu(radio->int_in_endpoint->wMaxPacketSize),
+			si470x_int_in_callback,
+			radio,
+			radio->int_in_endpoint->bInterval);
+
+		radio->int_in_running = 1;
+		mb();
+
+		retval = usb_submit_urb(radio->int_in_urb, GFP_KERNEL);
+		if (retval) {
+			dev_info(&radio->intf->dev,
+				 "submitting int urb failed (%d)\n", retval);
+			radio->int_in_running = 0;
+			usb_autopm_put_interface(radio->intf);
+		}
+	}
+
+done:
+	unlock_kernel();
+	return retval;
+}
+
+
+/*
+ * si470x_fops_release - file release
+ */
+static int si470x_fops_release(struct file *file)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety check */
+	if (!radio) {
+		retval = -ENODEV;
+		goto done;
+	}
+
+	mutex_lock(&radio->disconnect_lock);
+	radio->users--;
+	if (radio->users == 0) {
+		/* shutdown interrupt handler */
+		if (radio->int_in_running) {
+			radio->int_in_running = 0;
+		if (radio->int_in_urb)
+			usb_kill_urb(radio->int_in_urb);
+		}
+
+		if (radio->disconnected) {
+			video_unregister_device(radio->videodev);
+			kfree(radio->int_in_buffer);
+			kfree(radio->buffer);
+			kfree(radio);
+			goto unlock;
+		}
+
+		/* cancel read processes */
+		wake_up_interruptible(&radio->read_queue);
+
+		/* stop radio */
+		retval = si470x_stop(radio);
+		usb_autopm_put_interface(radio->intf);
+	}
+unlock:
+	mutex_unlock(&radio->disconnect_lock);
+done:
+	return retval;
+}
+
+
+/*
+ * si470x_fops - file operations interface
+ */
+const struct v4l2_file_operations si470x_fops = {
+	.owner		= THIS_MODULE,
+	.read		= si470x_fops_read,
+	.poll		= si470x_fops_poll,
+	.ioctl		= video_ioctl2,
+	.open		= si470x_fops_open,
+	.release	= si470x_fops_release,
+};
+
+
+
+/**************************************************************************
+ * Video4Linux Interface
+ **************************************************************************/
+
+/*
+ * si470x_vidioc_querycap - query device capabilities
+ */
+int si470x_vidioc_querycap(struct file *file, void *priv,
+		struct v4l2_capability *capability)
+{
+	struct si470x_device *radio = video_drvdata(file);
+
+	strlcpy(capability->driver, DRIVER_NAME, sizeof(capability->driver));
+	strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
+	usb_make_path(radio->usbdev, capability->bus_info,
+			sizeof(capability->bus_info));
+	capability->version = DRIVER_KERNEL_VERSION;
+	capability->capabilities = V4L2_CAP_HW_FREQ_SEEK |
+		V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_RDS_CAPTURE;
+
+	return 0;
+}
+
+
+
+/**************************************************************************
+ * USB Interface
+ **************************************************************************/
+
+/*
+ * si470x_usb_driver_probe - probe for the device
+ */
+static int si470x_usb_driver_probe(struct usb_interface *intf,
+		const struct usb_device_id *id)
+{
+	struct si470x_device *radio;
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	int i, int_end_size, retval = 0;
+	unsigned char version_warning = 0;
+
+	/* private data allocation and initialization */
+	radio = kzalloc(sizeof(struct si470x_device), GFP_KERNEL);
+	if (!radio) {
+		retval = -ENOMEM;
+		goto err_initial;
+	}
+	radio->users = 0;
+	radio->disconnected = 0;
+	radio->usbdev = interface_to_usbdev(intf);
+	radio->intf = intf;
+	mutex_init(&radio->disconnect_lock);
+	mutex_init(&radio->lock);
+
+	iface_desc = intf->cur_altsetting;
+
+	/* Set up interrupt endpoint information. */
+	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
+		endpoint = &iface_desc->endpoint[i].desc;
+		if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
+		 USB_DIR_IN) && ((endpoint->bmAttributes &
+		 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT))
+			radio->int_in_endpoint = endpoint;
+	}
+	if (!radio->int_in_endpoint) {
+		dev_info(&intf->dev, "could not find interrupt in endpoint\n");
+		retval = -EIO;
+		goto err_radio;
+	}
+
+	int_end_size = le16_to_cpu(radio->int_in_endpoint->wMaxPacketSize);
+
+	radio->int_in_buffer = kmalloc(int_end_size, GFP_KERNEL);
+	if (!radio->int_in_buffer) {
+		dev_info(&intf->dev, "could not allocate int_in_buffer");
+		retval = -ENOMEM;
+		goto err_radio;
+	}
+
+	radio->int_in_urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!radio->int_in_urb) {
+		dev_info(&intf->dev, "could not allocate int_in_urb");
+		retval = -ENOMEM;
+		goto err_intbuffer;
+	}
+
+	/* video device allocation and initialization */
+	radio->videodev = video_device_alloc();
+	if (!radio->videodev) {
+		retval = -ENOMEM;
+		goto err_intbuffer;
+	}
+	memcpy(radio->videodev, &si470x_viddev_template,
+			sizeof(si470x_viddev_template));
+	video_set_drvdata(radio->videodev, radio);
+
+	/* get device and chip versions */
+	if (si470x_get_all_registers(radio) < 0) {
+		retval = -EIO;
+		goto err_video;
+	}
+	dev_info(&intf->dev, "DeviceID=0x%4.4hx ChipID=0x%4.4hx\n",
+			radio->registers[DEVICEID], radio->registers[CHIPID]);
+	if ((radio->registers[CHIPID] & CHIPID_FIRMWARE) < RADIO_FW_VERSION) {
+		dev_warn(&intf->dev,
+			"This driver is known to work with "
+			"firmware version %hu,\n", RADIO_FW_VERSION);
+		dev_warn(&intf->dev,
+			"but the device has firmware version %hu.\n",
+			radio->registers[CHIPID] & CHIPID_FIRMWARE);
+		version_warning = 1;
+	}
+
+	/* get software and hardware versions */
+	if (si470x_get_scratch_page_versions(radio) < 0) {
+		retval = -EIO;
+		goto err_video;
+	}
+	dev_info(&intf->dev, "software version %d, hardware version %d\n",
+			radio->software_version, radio->hardware_version);
+	if (radio->software_version < RADIO_SW_VERSION) {
+		dev_warn(&intf->dev,
+			"This driver is known to work with "
+			"software version %hu,\n", RADIO_SW_VERSION);
+		dev_warn(&intf->dev,
+			"but the device has software version %hu.\n",
+			radio->software_version);
+		version_warning = 1;
+	}
+	if (radio->hardware_version < RADIO_HW_VERSION) {
+		dev_warn(&intf->dev,
+			"This driver is known to work with "
+			"hardware version %hu,\n", RADIO_HW_VERSION);
+		dev_warn(&intf->dev,
+			"but the device has hardware version %hu.\n",
+			radio->hardware_version);
+		version_warning = 1;
+	}
+
+	/* give out version warning */
+	if (version_warning == 1) {
+		dev_warn(&intf->dev,
+			"If you have some trouble using this driver,\n");
+		dev_warn(&intf->dev,
+			"please report to V4L ML at "
+			"linux-media@vger.kernel.org\n");
+	}
+
+	/* set initial frequency */
+	si470x_set_freq(radio, 87.5 * FREQ_MUL); /* available in all regions */
+
+	/* set led to connect state */
+	si470x_set_led_state(radio, BLINK_GREEN_LED);
+
+	/* rds buffer allocation */
+	radio->buf_size = rds_buf * 3;
+	radio->buffer = kmalloc(radio->buf_size, GFP_KERNEL);
+	if (!radio->buffer) {
+		retval = -EIO;
+		goto err_video;
+	}
+
+	/* rds buffer configuration */
+	radio->wr_index = 0;
+	radio->rd_index = 0;
+	init_waitqueue_head(&radio->read_queue);
+
+	/* register video device */
+	retval = video_register_device(radio->videodev, VFL_TYPE_RADIO,
+			radio_nr);
+	if (retval) {
+		dev_warn(&intf->dev, "Could not register video device\n");
+		goto err_all;
+	}
+	usb_set_intfdata(intf, radio);
+
+	return 0;
+err_all:
+	kfree(radio->buffer);
+err_video:
+	video_device_release(radio->videodev);
+err_intbuffer:
+	kfree(radio->int_in_buffer);
+err_radio:
+	kfree(radio);
+err_initial:
+	return retval;
+}
+
+
+/*
+ * si470x_usb_driver_suspend - suspend the device
+ */
+static int si470x_usb_driver_suspend(struct usb_interface *intf,
+		pm_message_t message)
+{
+	dev_info(&intf->dev, "suspending now...\n");
+
+	return 0;
+}
+
+
+/*
+ * si470x_usb_driver_resume - resume the device
+ */
+static int si470x_usb_driver_resume(struct usb_interface *intf)
+{
+	dev_info(&intf->dev, "resuming now...\n");
+
+	return 0;
+}
+
+
+/*
+ * si470x_usb_driver_disconnect - disconnect the device
+ */
+static void si470x_usb_driver_disconnect(struct usb_interface *intf)
+{
+	struct si470x_device *radio = usb_get_intfdata(intf);
+
+	mutex_lock(&radio->disconnect_lock);
+	radio->disconnected = 1;
+	usb_set_intfdata(intf, NULL);
+	if (radio->users == 0) {
+		/* set led to disconnect state */
+		si470x_set_led_state(radio, BLINK_ORANGE_LED);
+
+		/* Free data structures. */
+		usb_free_urb(radio->int_in_urb);
+
+		kfree(radio->int_in_buffer);
+		video_unregister_device(radio->videodev);
+		kfree(radio->buffer);
+		kfree(radio);
+	}
+	mutex_unlock(&radio->disconnect_lock);
+}
+
+
+/*
+ * si470x_usb_driver - usb driver interface
+ */
+static struct usb_driver si470x_usb_driver = {
+	.name			= DRIVER_NAME,
+	.probe			= si470x_usb_driver_probe,
+	.disconnect		= si470x_usb_driver_disconnect,
+	.suspend		= si470x_usb_driver_suspend,
+	.resume			= si470x_usb_driver_resume,
+	.id_table		= si470x_usb_driver_id_table,
+	.supports_autosuspend	= 1,
+};
+
+
+
+/**************************************************************************
+ * Module Interface
+ **************************************************************************/
+
+/*
+ * si470x_module_init - module init
+ */
+static int __init si470x_module_init(void)
+{
+	printk(KERN_INFO DRIVER_DESC ", Version " DRIVER_VERSION "\n");
+	return usb_register(&si470x_usb_driver);
+}
+
+
+/*
+ * si470x_module_exit - module exit
+ */
+static void __exit si470x_module_exit(void)
+{
+	usb_deregister(&si470x_usb_driver);
+}
+
+
+module_init(si470x_module_init);
+module_exit(si470x_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
diff --git a/linux/drivers/media/radio/si470x/radio-si470x.h b/linux/drivers/media/radio/si470x/radio-si470x.h
new file mode 100644
index 000000000..f931789c2
--- /dev/null
+++ b/linux/drivers/media/radio/si470x/radio-si470x.h
@@ -0,0 +1,226 @@
+/*
+ *  drivers/media/radio/si470x/radio-si470x.h
+ *
+ *  Driver for radios with Silicon Labs Si470x FM Radio Receivers
+ *
+ *  Copyright (c) 2009 Tobias Lorenz <tobias.lorenz@gmx.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/* driver definitions */
+#define DRIVER_NAME "radio-si470x"
+
+
+/* kernel includes */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+#include <linux/input.h>
+#include <linux/version.h>
+#include "compat.h"
+#include <linux/videodev2.h>
+#include <linux/mutex.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/rds.h>
+#include <asm/unaligned.h>
+
+
+
+/**************************************************************************
+ * Register Definitions
+ **************************************************************************/
+#define RADIO_REGISTER_SIZE	2	/* 16 register bit width */
+#define RADIO_REGISTER_NUM	16	/* DEVICEID   ... RDSD */
+#define RDS_REGISTER_NUM	6	/* STATUSRSSI ... RDSD */
+
+#define DEVICEID		0	/* Device ID */
+#define DEVICEID_PN		0xf000	/* bits 15..12: Part Number */
+#define DEVICEID_MFGID		0x0fff	/* bits 11..00: Manufacturer ID */
+
+#define CHIPID			1	/* Chip ID */
+#define CHIPID_REV		0xfc00	/* bits 15..10: Chip Version */
+#define CHIPID_DEV		0x0200	/* bits 09..09: Device */
+#define CHIPID_FIRMWARE		0x01ff	/* bits 08..00: Firmware Version */
+
+#define POWERCFG		2	/* Power Configuration */
+#define POWERCFG_DSMUTE		0x8000	/* bits 15..15: Softmute Disable */
+#define POWERCFG_DMUTE		0x4000	/* bits 14..14: Mute Disable */
+#define POWERCFG_MONO		0x2000	/* bits 13..13: Mono Select */
+#define POWERCFG_RDSM		0x0800	/* bits 11..11: RDS Mode (Si4701 only) */
+#define POWERCFG_SKMODE		0x0400	/* bits 10..10: Seek Mode */
+#define POWERCFG_SEEKUP		0x0200	/* bits 09..09: Seek Direction */
+#define POWERCFG_SEEK		0x0100	/* bits 08..08: Seek */
+#define POWERCFG_DISABLE	0x0040	/* bits 06..06: Powerup Disable */
+#define POWERCFG_ENABLE		0x0001	/* bits 00..00: Powerup Enable */
+
+#define CHANNEL			3	/* Channel */
+#define CHANNEL_TUNE		0x8000	/* bits 15..15: Tune */
+#define CHANNEL_CHAN		0x03ff	/* bits 09..00: Channel Select */
+
+#define SYSCONFIG1		4	/* System Configuration 1 */
+#define SYSCONFIG1_RDSIEN	0x8000	/* bits 15..15: RDS Interrupt Enable (Si4701 only) */
+#define SYSCONFIG1_STCIEN	0x4000	/* bits 14..14: Seek/Tune Complete Interrupt Enable */
+#define SYSCONFIG1_RDS		0x1000	/* bits 12..12: RDS Enable (Si4701 only) */
+#define SYSCONFIG1_DE		0x0800	/* bits 11..11: De-emphasis (0=75us 1=50us) */
+#define SYSCONFIG1_AGCD		0x0400	/* bits 10..10: AGC Disable */
+#define SYSCONFIG1_BLNDADJ	0x00c0	/* bits 07..06: Stereo/Mono Blend Level Adjustment */
+#define SYSCONFIG1_GPIO3	0x0030	/* bits 05..04: General Purpose I/O 3 */
+#define SYSCONFIG1_GPIO2	0x000c	/* bits 03..02: General Purpose I/O 2 */
+#define SYSCONFIG1_GPIO1	0x0003	/* bits 01..00: General Purpose I/O 1 */
+
+#define SYSCONFIG2		5	/* System Configuration 2 */
+#define SYSCONFIG2_SEEKTH	0xff00	/* bits 15..08: RSSI Seek Threshold */
+#define SYSCONFIG2_BAND		0x0080	/* bits 07..06: Band Select */
+#define SYSCONFIG2_SPACE	0x0030	/* bits 05..04: Channel Spacing */
+#define SYSCONFIG2_VOLUME	0x000f	/* bits 03..00: Volume */
+
+#define SYSCONFIG3		6	/* System Configuration 3 */
+#define SYSCONFIG3_SMUTER	0xc000	/* bits 15..14: Softmute Attack/Recover Rate */
+#define SYSCONFIG3_SMUTEA	0x3000	/* bits 13..12: Softmute Attenuation */
+#define SYSCONFIG3_SKSNR	0x00f0	/* bits 07..04: Seek SNR Threshold */
+#define SYSCONFIG3_SKCNT	0x000f	/* bits 03..00: Seek FM Impulse Detection Threshold */
+
+#define TEST1			7	/* Test 1 */
+#define TEST1_AHIZEN		0x4000	/* bits 14..14: Audio High-Z Enable */
+
+#define TEST2			8	/* Test 2 */
+/* TEST2 only contains reserved bits */
+
+#define BOOTCONFIG		9	/* Boot Configuration */
+/* BOOTCONFIG only contains reserved bits */
+
+#define STATUSRSSI		10	/* Status RSSI */
+#define STATUSRSSI_RDSR		0x8000	/* bits 15..15: RDS Ready (Si4701 only) */
+#define STATUSRSSI_STC		0x4000	/* bits 14..14: Seek/Tune Complete */
+#define STATUSRSSI_SF		0x2000	/* bits 13..13: Seek Fail/Band Limit */
+#define STATUSRSSI_AFCRL	0x1000	/* bits 12..12: AFC Rail */
+#define STATUSRSSI_RDSS		0x0800	/* bits 11..11: RDS Synchronized (Si4701 only) */
+#define STATUSRSSI_BLERA	0x0600	/* bits 10..09: RDS Block A Errors (Si4701 only) */
+#define STATUSRSSI_ST		0x0100	/* bits 08..08: Stereo Indicator */
+#define STATUSRSSI_RSSI		0x00ff	/* bits 07..00: RSSI (Received Signal Strength Indicator) */
+
+#define READCHAN		11	/* Read Channel */
+#define READCHAN_BLERB		0xc000	/* bits 15..14: RDS Block D Errors (Si4701 only) */
+#define READCHAN_BLERC		0x3000	/* bits 13..12: RDS Block C Errors (Si4701 only) */
+#define READCHAN_BLERD		0x0c00	/* bits 11..10: RDS Block B Errors (Si4701 only) */
+#define READCHAN_READCHAN	0x03ff	/* bits 09..00: Read Channel */
+
+#define RDSA			12	/* RDSA */
+#define RDSA_RDSA		0xffff	/* bits 15..00: RDS Block A Data (Si4701 only) */
+
+#define RDSB			13	/* RDSB */
+#define RDSB_RDSB		0xffff	/* bits 15..00: RDS Block B Data (Si4701 only) */
+
+#define RDSC			14	/* RDSC */
+#define RDSC_RDSC		0xffff	/* bits 15..00: RDS Block C Data (Si4701 only) */
+
+#define RDSD			15	/* RDSD */
+#define RDSD_RDSD		0xffff	/* bits 15..00: RDS Block D Data (Si4701 only) */
+
+
+
+/**************************************************************************
+ * General Driver Definitions
+ **************************************************************************/
+
+/*
+ * si470x_device - private data
+ */
+struct si470x_device {
+	struct video_device *videodev;
+
+	/* driver management */
+	unsigned int users;
+
+	/* Silabs internal registers (0..15) */
+	unsigned short registers[RADIO_REGISTER_NUM];
+
+	/* RDS receive buffer */
+	wait_queue_head_t read_queue;
+	struct mutex lock;		/* buffer locking */
+	unsigned char *buffer;		/* size is always multiple of three */
+	unsigned int buf_size;
+	unsigned int rd_index;
+	unsigned int wr_index;
+
+#if defined(CONFIG_USB_SI470X) || defined(CONFIG_USB_SI470X_MODULE)
+	/* reference to USB and video device */
+	struct usb_device *usbdev;
+	struct usb_interface *intf;
+
+	/* Interrupt endpoint handling */
+	char *int_in_buffer;
+	struct usb_endpoint_descriptor *int_in_endpoint;
+	struct urb *int_in_urb;
+	int int_in_running;
+
+	/* scratch page */
+	unsigned char software_version;
+	unsigned char hardware_version;
+
+	/* driver management */
+	unsigned char disconnected;
+	struct mutex disconnect_lock;
+#endif
+
+#if defined(CONFIG_I2C_SI470X) || defined(CONFIG_I2C_SI470X_MODULE)
+	struct i2c_client *client;
+#endif
+};
+
+
+
+/**************************************************************************
+ * Firmware Versions
+ **************************************************************************/
+
+#define RADIO_FW_VERSION	15
+
+
+
+/**************************************************************************
+ * Frequency Multiplicator
+ **************************************************************************/
+
+/*
+ * The frequency is set in units of 62.5 Hz when using V4L2_TUNER_CAP_LOW,
+ * 62.5 kHz otherwise.
+ * The tuner is able to have a channel spacing of 50, 100 or 200 kHz.
+ * tuner->capability is therefore set to V4L2_TUNER_CAP_LOW
+ * The FREQ_MUL is then: 1 MHz / 62.5 Hz = 16000
+ */
+#define FREQ_MUL (1000000 / 62.5)
+
+
+
+/**************************************************************************
+ * Common Functions
+ **************************************************************************/
+extern const struct v4l2_file_operations si470x_fops;
+extern struct video_device si470x_viddev_template;
+int si470x_get_register(struct si470x_device *radio, int regnr);
+int si470x_set_register(struct si470x_device *radio, int regnr);
+int si470x_disconnect_check(struct si470x_device *radio);
+int si470x_set_freq(struct si470x_device *radio, unsigned int freq);
+int si470x_start(struct si470x_device *radio);
+int si470x_stop(struct si470x_device *radio);
+int si470x_rds_on(struct si470x_device *radio);
+int si470x_vidioc_querycap(struct file *file, void *priv,
+		struct v4l2_capability *capability);
diff --git a/linux/drivers/media/radio/si4713-i2c.c b/linux/drivers/media/radio/si4713-i2c.c
new file mode 100644
index 000000000..8cbbe48b0
--- /dev/null
+++ b/linux/drivers/media/radio/si4713-i2c.c
@@ -0,0 +1,2067 @@
+/*
+ * drivers/media/radio/si4713-i2c.c
+ *
+ * Silicon Labs Si4713 FM Radio Transmitter I2C commands.
+ *
+ * Copyright (c) 2009 Nokia Corporation
+ * Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/mutex.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-common.h>
+
+#include "si4713-i2c.h"
+
+/* module parameters */
+static int debug;
+module_param(debug, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(debug, "Debug level (0 - 2)");
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Eduardo Valentin <eduardo.valentin@nokia.com>");
+MODULE_DESCRIPTION("I2C driver for Si4713 FM Radio Transmitter");
+MODULE_VERSION("0.0.1");
+
+#define DEFAULT_RDS_PI			0x00
+#define DEFAULT_RDS_PTY			0x00
+#define DEFAULT_RDS_PS_NAME		""
+#define DEFAULT_RDS_RADIO_TEXT		DEFAULT_RDS_PS_NAME
+#define DEFAULT_RDS_DEVIATION		0x00C8
+#define DEFAULT_RDS_PS_REPEAT_COUNT	0x0003
+#define DEFAULT_LIMITER_RTIME		0x1392
+#define DEFAULT_LIMITER_DEV		0x102CA
+#define DEFAULT_PILOT_FREQUENCY 	0x4A38
+#define DEFAULT_PILOT_DEVIATION		0x1A5E
+#define DEFAULT_ACOMP_ATIME		0x0000
+#define DEFAULT_ACOMP_RTIME		0xF4240L
+#define DEFAULT_ACOMP_GAIN		0x0F
+#define DEFAULT_ACOMP_THRESHOLD 	(-0x28)
+#define DEFAULT_MUTE			0x01
+#define DEFAULT_POWER_LEVEL		88
+#define DEFAULT_FREQUENCY		8800
+#define DEFAULT_PREEMPHASIS		FMPE_EU
+#define DEFAULT_TUNE_RNL		0xFF
+
+#define to_si4713_device(sd)	container_of(sd, struct si4713_device, sd)
+
+/* frequency domain transformation (using times 10 to avoid floats) */
+#define FREQDEV_UNIT	100000
+#define FREQV4L2_MULTI	625
+#define si4713_to_v4l2(f)	((f * FREQDEV_UNIT) / FREQV4L2_MULTI)
+#define v4l2_to_si4713(f)	((f * FREQV4L2_MULTI) / FREQDEV_UNIT)
+#define FREQ_RANGE_LOW			7600
+#define FREQ_RANGE_HIGH			10800
+
+#define MAX_ARGS 7
+
+#define RDS_BLOCK			8
+#define RDS_BLOCK_CLEAR			0x03
+#define RDS_BLOCK_LOAD			0x04
+#define RDS_RADIOTEXT_2A		0x20
+#define RDS_RADIOTEXT_BLK_SIZE		4
+#define RDS_RADIOTEXT_INDEX_MAX		0x0F
+#define RDS_CARRIAGE_RETURN		0x0D
+
+#define rds_ps_nblocks(len)	((len / RDS_BLOCK) + (len % RDS_BLOCK ? 1 : 0))
+
+#define get_status_bit(p, b, m)	(((p) & (m)) >> (b))
+#define set_bits(p, v, b, m)	(((p) & ~(m)) | ((v) << (b)))
+
+#define ATTACK_TIME_UNIT	500
+
+#define POWER_OFF			0x00
+#define POWER_ON			0x01
+
+#define msb(x)                  ((u8)((u16) x >> 8))
+#define lsb(x)                  ((u8)((u16) x &  0x00FF))
+#define compose_u16(msb, lsb)	(((u16)msb << 8) | lsb)
+#define check_command_failed(status)	(!(status & SI4713_CTS) || \
+					(status & SI4713_ERR))
+/* mute definition */
+#define set_mute(p)	((p & 1) | ((p & 1) << 1));
+#define get_mute(p)	(p & 0x01)
+
+#ifdef DEBUG
+#define DBG_BUFFER(device, message, buffer, size)			\
+	{								\
+		int i;							\
+		char str[(size)*5];					\
+		for (i = 0; i < size; i++)				\
+			sprintf(str + i * 5, " 0x%02x", buffer[i]);	\
+		v4l2_dbg(2, debug, device, "%s:%s\n", message, str);	\
+	}
+#else
+#define DBG_BUFFER(device, message, buffer, size)
+#endif
+
+/*
+ * Values for limiter release time (sorted by second column)
+ *	device	release
+ *	value	time (us)
+ */
+static long limiter_times[] = {
+	2000,	250,
+	1000,	500,
+	510,	1000,
+	255,	2000,
+	170,	3000,
+	127,	4020,
+	102,	5010,
+	85,	6020,
+	73,	7010,
+	64,	7990,
+	57,	8970,
+	51,	10030,
+	25,	20470,
+	17,	30110,
+	13,	39380,
+	10,	51190,
+	8,	63690,
+	7,	73140,
+	6,	85330,
+	5,	102390,
+};
+
+/*
+ * Values for audio compression release time (sorted by second column)
+ *	device	release
+ *	value	time (us)
+ */
+static unsigned long acomp_rtimes[] = {
+	0,	100000,
+	1,	200000,
+	2,	350000,
+	3,	525000,
+	4,	1000000,
+};
+
+/*
+ * Values for preemphasis (sorted by second column)
+ *	device	preemphasis
+ *	value	value (v4l2)
+ */
+static unsigned long preemphasis_values[] = {
+	FMPE_DISABLED,	V4L2_PREEMPHASIS_DISABLED,
+	FMPE_EU,	V4L2_PREEMPHASIS_50_uS,
+	FMPE_USA,	V4L2_PREEMPHASIS_75_uS,
+};
+
+static int usecs_to_dev(unsigned long usecs, unsigned long const array[],
+			int size)
+{
+	int i;
+	int rval = -EINVAL;
+
+	for (i = 0; i < size / 2; i++)
+		if (array[(i * 2) + 1] >= usecs) {
+			rval = array[i * 2];
+			break;
+		}
+
+	return rval;
+}
+
+static unsigned long dev_to_usecs(int value, unsigned long const array[],
+			int size)
+{
+	int i;
+	int rval = -EINVAL;
+
+	for (i = 0; i < size / 2; i++)
+		if (array[i * 2] == value) {
+			rval = array[(i * 2) + 1];
+			break;
+		}
+
+	return rval;
+}
+
+/* si4713_handler: IRQ handler, just complete work */
+static irqreturn_t si4713_handler(int irq, void *dev)
+{
+	struct si4713_device *sdev = dev;
+
+	v4l2_dbg(2, debug, &sdev->sd,
+			"%s: sending signal to completion work.\n", __func__);
+	complete(&sdev->work);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * si4713_send_command - sends a command to si4713 and waits its response
+ * @sdev: si4713_device structure for the device we are communicating
+ * @command: command id
+ * @args: command arguments we are sending (up to 7)
+ * @argn: actual size of @args
+ * @response: buffer to place the expected response from the device (up to 15)
+ * @respn: actual size of @response
+ * @usecs: amount of time to wait before reading the response (in usecs)
+ */
+static int si4713_send_command(struct si4713_device *sdev, const u8 command,
+				const u8 args[], const int argn,
+				u8 response[], const int respn, const int usecs)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+	u8 data1[MAX_ARGS + 1];
+	int err;
+
+	if (!client->adapter)
+		return -ENODEV;
+
+	/* First send the command and its arguments */
+	data1[0] = command;
+	memcpy(data1 + 1, args, argn);
+	DBG_BUFFER(&sdev->sd, "Parameters", data1, argn + 1);
+
+	err = i2c_master_send(client, data1, argn + 1);
+	if (err != argn + 1) {
+		v4l2_err(&sdev->sd, "Error while sending command 0x%02x\n",
+			command);
+		return (err > 0) ? -EIO : err;
+	}
+
+	/* Wait response from interrupt */
+	if (!wait_for_completion_timeout(&sdev->work,
+				usecs_to_jiffies(usecs) + 1))
+		v4l2_warn(&sdev->sd,
+				"(%s) Device took too much time to answer.\n",
+				__func__);
+
+	/* Then get the response */
+	err = i2c_master_recv(client, response, respn);
+	if (err != respn) {
+		v4l2_err(&sdev->sd,
+			"Error while reading response for command 0x%02x\n",
+			command);
+		return (err > 0) ? -EIO : err;
+	}
+
+	DBG_BUFFER(&sdev->sd, "Response", response, respn);
+	if (check_command_failed(response[0]))
+		return -EBUSY;
+
+	return 0;
+}
+
+/*
+ * si4713_read_property - reads a si4713 property
+ * @sdev: si4713_device structure for the device we are communicating
+ * @prop: property identification number
+ * @pv: property value to be returned on success
+ */
+static int si4713_read_property(struct si4713_device *sdev, u16 prop, u32 *pv)
+{
+	int err;
+	u8 val[SI4713_GET_PROP_NRESP];
+	/*
+	 * 	.First byte = 0
+	 * 	.Second byte = property's MSB
+	 * 	.Third byte = property's LSB
+	 */
+	const u8 args[SI4713_GET_PROP_NARGS] = {
+		0x00,
+		msb(prop),
+		lsb(prop),
+	};
+
+	err = si4713_send_command(sdev, SI4713_CMD_GET_PROPERTY,
+				  args, ARRAY_SIZE(args), val,
+				  ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+	if (err < 0)
+		return err;
+
+	*pv = compose_u16(val[2], val[3]);
+
+	v4l2_dbg(1, debug, &sdev->sd,
+			"%s: property=0x%02x value=0x%02x status=0x%02x\n",
+			__func__, prop, *pv, val[0]);
+
+	return err;
+}
+
+/*
+ * si4713_write_property - modifies a si4713 property
+ * @sdev: si4713_device structure for the device we are communicating
+ * @prop: property identification number
+ * @val: new value for that property
+ */
+static int si4713_write_property(struct si4713_device *sdev, u16 prop, u16 val)
+{
+	int rval;
+	u8 resp[SI4713_SET_PROP_NRESP];
+	/*
+	 * 	.First byte = 0
+	 * 	.Second byte = property's MSB
+	 * 	.Third byte = property's LSB
+	 * 	.Fourth byte = value's MSB
+	 * 	.Fifth byte = value's LSB
+	 */
+	const u8 args[SI4713_SET_PROP_NARGS] = {
+		0x00,
+		msb(prop),
+		lsb(prop),
+		msb(val),
+		lsb(val),
+	};
+
+	rval = si4713_send_command(sdev, SI4713_CMD_SET_PROPERTY,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					DEFAULT_TIMEOUT);
+
+	if (rval < 0)
+		return rval;
+
+	v4l2_dbg(1, debug, &sdev->sd,
+			"%s: property=0x%02x value=0x%02x status=0x%02x\n",
+			__func__, prop, val, resp[0]);
+
+	/*
+	 * As there is no command response for SET_PROPERTY,
+	 * wait Tcomp time to finish before proceed, in order
+	 * to have property properly set.
+	 */
+	msleep(TIMEOUT_SET_PROPERTY);
+
+	return rval;
+}
+
+/*
+ * si4713_powerup - Powers the device up
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+static int si4713_powerup(struct si4713_device *sdev)
+{
+	int err;
+	u8 resp[SI4713_PWUP_NRESP];
+	/*
+	 * 	.First byte = Enabled interrupts and boot function
+	 * 	.Second byte = Input operation mode
+	 */
+	const u8 args[SI4713_PWUP_NARGS] = {
+		SI4713_PWUP_CTSIEN | SI4713_PWUP_GPO2OEN | SI4713_PWUP_FUNC_TX,
+		SI4713_PWUP_OPMOD_ANALOG,
+	};
+
+	if (sdev->power_state)
+		return 0;
+
+	sdev->platform_data->set_power(1);
+	err = si4713_send_command(sdev, SI4713_CMD_POWER_UP,
+					args, ARRAY_SIZE(args),
+					resp, ARRAY_SIZE(resp),
+					TIMEOUT_POWER_UP);
+
+	if (!err) {
+		v4l2_dbg(1, debug, &sdev->sd, "Powerup response: 0x%02x\n",
+				resp[0]);
+		v4l2_dbg(1, debug, &sdev->sd, "Device in power up mode\n");
+		sdev->power_state = POWER_ON;
+
+		err = si4713_write_property(sdev, SI4713_GPO_IEN,
+						SI4713_STC_INT | SI4713_CTS);
+	} else {
+		sdev->platform_data->set_power(0);
+	}
+
+	return err;
+}
+
+/*
+ * si4713_powerdown - Powers the device down
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+static int si4713_powerdown(struct si4713_device *sdev)
+{
+	int err;
+	u8 resp[SI4713_PWDN_NRESP];
+
+	if (!sdev->power_state)
+		return 0;
+
+	err = si4713_send_command(sdev, SI4713_CMD_POWER_DOWN,
+					NULL, 0,
+					resp, ARRAY_SIZE(resp),
+					DEFAULT_TIMEOUT);
+
+	if (!err) {
+		v4l2_dbg(1, debug, &sdev->sd, "Power down response: 0x%02x\n",
+				resp[0]);
+		v4l2_dbg(1, debug, &sdev->sd, "Device in reset mode\n");
+		sdev->platform_data->set_power(0);
+		sdev->power_state = POWER_OFF;
+	}
+
+	return err;
+}
+
+/*
+ * si4713_checkrev - Checks if we are treating a device with the correct rev.
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+static int si4713_checkrev(struct si4713_device *sdev)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(&sdev->sd);
+	int rval;
+	u8 resp[SI4713_GETREV_NRESP];
+
+	mutex_lock(&sdev->mutex);
+
+	rval = si4713_send_command(sdev, SI4713_CMD_GET_REV,
+					NULL, 0,
+					resp, ARRAY_SIZE(resp),
+					DEFAULT_TIMEOUT);
+
+	if (rval < 0)
+		goto unlock;
+
+	if (resp[1] == SI4713_PRODUCT_NUMBER) {
+		v4l2_info(&sdev->sd, "chip found @ 0x%02x (%s)\n",
+				client->addr << 1, client->adapter->name);
+	} else {
+		v4l2_err(&sdev->sd, "Invalid product number\n");
+		rval = -EINVAL;
+	}
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+	return rval;
+}
+
+/*
+ * si4713_wait_stc - Waits STC interrupt and clears status bits. Usefull
+ *		     for TX_TUNE_POWER, TX_TUNE_FREQ and TX_TUNE_MEAS
+ * @sdev: si4713_device structure for the device we are communicating
+ * @usecs: timeout to wait for STC interrupt signal
+ */
+static int si4713_wait_stc(struct si4713_device *sdev, const int usecs)
+{
+	int err;
+	u8 resp[SI4713_GET_STATUS_NRESP];
+
+	/* Wait response from STC interrupt */
+	if (!wait_for_completion_timeout(&sdev->work,
+			usecs_to_jiffies(usecs) + 1))
+		v4l2_warn(&sdev->sd,
+			"%s: device took too much time to answer (%d usec).\n",
+				__func__, usecs);
+
+	/* Clear status bits */
+	err = si4713_send_command(sdev, SI4713_CMD_GET_INT_STATUS,
+					NULL, 0,
+					resp, ARRAY_SIZE(resp),
+					DEFAULT_TIMEOUT);
+
+	if (err < 0)
+		goto exit;
+
+	v4l2_dbg(1, debug, &sdev->sd,
+			"%s: status bits: 0x%02x\n", __func__, resp[0]);
+
+	if (!(resp[0] & SI4713_STC_INT))
+		err = -EIO;
+
+exit:
+	return err;
+}
+
+/*
+ * si4713_tx_tune_freq - Sets the state of the RF carrier and sets the tuning
+ * 			frequency between 76 and 108 MHz in 10 kHz units and
+ * 			steps of 50 kHz.
+ * @sdev: si4713_device structure for the device we are communicating
+ * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz)
+ */
+static int si4713_tx_tune_freq(struct si4713_device *sdev, u16 frequency)
+{
+	int err;
+	u8 val[SI4713_TXFREQ_NRESP];
+	/*
+	 * 	.First byte = 0
+	 * 	.Second byte = frequency's MSB
+	 * 	.Third byte = frequency's LSB
+	 */
+	const u8 args[SI4713_TXFREQ_NARGS] = {
+		0x00,
+		msb(frequency),
+		lsb(frequency),
+	};
+
+	err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_FREQ,
+				  args, ARRAY_SIZE(args), val,
+				  ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+	if (err < 0)
+		return err;
+
+	v4l2_dbg(1, debug, &sdev->sd,
+			"%s: frequency=0x%02x status=0x%02x\n", __func__,
+			frequency, val[0]);
+
+	err = si4713_wait_stc(sdev, TIMEOUT_TX_TUNE);
+	if (err < 0)
+		return err;
+
+	return compose_u16(args[1], args[2]);
+}
+
+/*
+ * si4713_tx_tune_power - Sets the RF voltage level between 88 and 115 dBuV in
+ * 			1 dB units. A value of 0x00 indicates off. The command
+ * 			also sets the antenna tuning capacitance. A value of 0
+ * 			indicates autotuning, and a value of 1 - 191 indicates
+ * 			a manual override, which results in a tuning
+ * 			capacitance of 0.25 pF x @antcap.
+ * @sdev: si4713_device structure for the device we are communicating
+ * @power: tuning power (88 - 115 dBuV, unit/step 1 dB)
+ * @antcap: value of antenna tuning capacitor (0 - 191)
+ */
+static int si4713_tx_tune_power(struct si4713_device *sdev, u8 power,
+				u8 antcap)
+{
+	int err;
+	u8 val[SI4713_TXPWR_NRESP];
+	/*
+	 * 	.First byte = 0
+	 * 	.Second byte = 0
+	 * 	.Third byte = power
+	 * 	.Fourth byte = antcap
+	 */
+	const u8 args[SI4713_TXPWR_NARGS] = {
+		0x00,
+		0x00,
+		power,
+		antcap,
+	};
+
+	if (((power > 0) && (power < SI4713_MIN_POWER)) ||
+		power > SI4713_MAX_POWER || antcap > SI4713_MAX_ANTCAP)
+		return -EDOM;
+
+	err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_POWER,
+				  args, ARRAY_SIZE(args), val,
+				  ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+	if (err < 0)
+		return err;
+
+	v4l2_dbg(1, debug, &sdev->sd,
+			"%s: power=0x%02x antcap=0x%02x status=0x%02x\n",
+			__func__, power, antcap, val[0]);
+
+	return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE_POWER);
+}
+
+/*
+ * si4713_tx_tune_measure - Enters receive mode and measures the received noise
+ * 			level in units of dBuV on the selected frequency.
+ * 			The Frequency must be between 76 and 108 MHz in 10 kHz
+ * 			units and steps of 50 kHz. The command also sets the
+ * 			antenna	tuning capacitance. A value of 0 means
+ * 			autotuning, and a value of 1 to 191 indicates manual
+ * 			override.
+ * @sdev: si4713_device structure for the device we are communicating
+ * @frequency: desired frequency (76 - 108 MHz, unit 10 KHz, step 50 kHz)
+ * @antcap: value of antenna tuning capacitor (0 - 191)
+ */
+static int si4713_tx_tune_measure(struct si4713_device *sdev, u16 frequency,
+					u8 antcap)
+{
+	int err;
+	u8 val[SI4713_TXMEA_NRESP];
+	/*
+	 * 	.First byte = 0
+	 * 	.Second byte = frequency's MSB
+	 * 	.Third byte = frequency's LSB
+	 * 	.Fourth byte = antcap
+	 */
+	const u8 args[SI4713_TXMEA_NARGS] = {
+		0x00,
+		msb(frequency),
+		lsb(frequency),
+		antcap,
+	};
+
+	sdev->tune_rnl = DEFAULT_TUNE_RNL;
+
+	if (antcap > SI4713_MAX_ANTCAP)
+		return -EDOM;
+
+	err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_MEASURE,
+				  args, ARRAY_SIZE(args), val,
+				  ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+	if (err < 0)
+		return err;
+
+	v4l2_dbg(1, debug, &sdev->sd,
+			"%s: frequency=0x%02x antcap=0x%02x status=0x%02x\n",
+			__func__, frequency, antcap, val[0]);
+
+	return si4713_wait_stc(sdev, TIMEOUT_TX_TUNE);
+}
+
+/*
+ * si4713_tx_tune_status- Returns the status of the tx_tune_freq, tx_tune_mea or
+ * 			tx_tune_power commands. This command return the current
+ * 			frequency, output voltage in dBuV, the antenna tunning
+ * 			capacitance value and the received noise level. The
+ * 			command also clears the stcint interrupt bit when the
+ * 			first bit of its arguments is high.
+ * @sdev: si4713_device structure for the device we are communicating
+ * @intack: 0x01 to clear the seek/tune complete interrupt status indicator.
+ * @frequency: returned frequency
+ * @power: returned power
+ * @antcap: returned antenna capacitance
+ * @noise: returned noise level
+ */
+static int si4713_tx_tune_status(struct si4713_device *sdev, u8 intack,
+					u16 *frequency,	u8 *power,
+					u8 *antcap, u8 *noise)
+{
+	int err;
+	u8 val[SI4713_TXSTATUS_NRESP];
+	/*
+	 * 	.First byte = intack bit
+	 */
+	const u8 args[SI4713_TXSTATUS_NARGS] = {
+		intack & SI4713_INTACK_MASK,
+	};
+
+	err = si4713_send_command(sdev, SI4713_CMD_TX_TUNE_STATUS,
+				  args, ARRAY_SIZE(args), val,
+				  ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+	if (!err) {
+		v4l2_dbg(1, debug, &sdev->sd,
+			"%s: status=0x%02x\n", __func__, val[0]);
+		*frequency = compose_u16(val[2], val[3]);
+		sdev->frequency = *frequency;
+		*power = val[5];
+		*antcap = val[6];
+		*noise = val[7];
+		v4l2_dbg(1, debug, &sdev->sd, "%s: response: %d x 10 kHz "
+				"(power %d, antcap %d, rnl %d)\n", __func__,
+				*frequency, *power, *antcap, *noise);
+	}
+
+	return err;
+}
+
+/*
+ * si4713_tx_rds_buff - Loads the RDS group buffer FIFO or circular buffer.
+ * @sdev: si4713_device structure for the device we are communicating
+ * @mode: the buffer operation mode.
+ * @rdsb: RDS Block B
+ * @rdsc: RDS Block C
+ * @rdsd: RDS Block D
+ * @cbleft: returns the number of available circular buffer blocks minus the
+ *          number of used circular buffer blocks.
+ */
+static int si4713_tx_rds_buff(struct si4713_device *sdev, u8 mode, u16 rdsb,
+				u16 rdsc, u16 rdsd, s8 *cbleft)
+{
+	int err;
+	u8 val[SI4713_RDSBUFF_NRESP];
+
+	const u8 args[SI4713_RDSBUFF_NARGS] = {
+		mode & SI4713_RDSBUFF_MODE_MASK,
+		msb(rdsb),
+		lsb(rdsb),
+		msb(rdsc),
+		lsb(rdsc),
+		msb(rdsd),
+		lsb(rdsd),
+	};
+
+	err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_BUFF,
+				  args, ARRAY_SIZE(args), val,
+				  ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+	if (!err) {
+		v4l2_dbg(1, debug, &sdev->sd,
+			"%s: status=0x%02x\n", __func__, val[0]);
+		*cbleft = (s8)val[2] - val[3];
+		v4l2_dbg(1, debug, &sdev->sd, "%s: response: interrupts"
+				" 0x%02x cb avail: %d cb used %d fifo avail"
+				" %d fifo used %d\n", __func__, val[1],
+				val[2], val[3], val[4], val[5]);
+	}
+
+	return err;
+}
+
+/*
+ * si4713_tx_rds_ps - Loads the program service buffer.
+ * @sdev: si4713_device structure for the device we are communicating
+ * @psid: program service id to be loaded.
+ * @pschar: assumed 4 size char array to be loaded into the program service
+ */
+static int si4713_tx_rds_ps(struct si4713_device *sdev, u8 psid,
+				unsigned char *pschar)
+{
+	int err;
+	u8 val[SI4713_RDSPS_NRESP];
+
+	const u8 args[SI4713_RDSPS_NARGS] = {
+		psid & SI4713_RDSPS_PSID_MASK,
+		pschar[0],
+		pschar[1],
+		pschar[2],
+		pschar[3],
+	};
+
+	err = si4713_send_command(sdev, SI4713_CMD_TX_RDS_PS,
+				  args, ARRAY_SIZE(args), val,
+				  ARRAY_SIZE(val), DEFAULT_TIMEOUT);
+
+	if (err < 0)
+		return err;
+
+	v4l2_dbg(1, debug, &sdev->sd, "%s: status=0x%02x\n", __func__, val[0]);
+
+	return err;
+}
+
+static int si4713_set_power_state(struct si4713_device *sdev, u8 value)
+{
+	int rval;
+
+	mutex_lock(&sdev->mutex);
+
+	if (value)
+		rval = si4713_powerup(sdev);
+	else
+		rval = si4713_powerdown(sdev);
+
+	mutex_unlock(&sdev->mutex);
+	return rval;
+}
+
+static int si4713_set_mute(struct si4713_device *sdev, u16 mute)
+{
+	int rval = 0;
+
+	mute = set_mute(mute);
+
+	mutex_lock(&sdev->mutex);
+
+	if (sdev->power_state)
+		rval = si4713_write_property(sdev,
+				SI4713_TX_LINE_INPUT_MUTE, mute);
+
+	if (rval >= 0)
+		sdev->mute = get_mute(mute);
+
+	mutex_unlock(&sdev->mutex);
+
+	return rval;
+}
+
+static int si4713_set_rds_ps_name(struct si4713_device *sdev, char *ps_name)
+{
+	int rval = 0, i;
+	u8 len = 0;
+
+	/* We want to clear the whole thing */
+	if (!strlen(ps_name))
+		memset(ps_name, 0, MAX_RDS_PS_NAME + 1);
+
+	mutex_lock(&sdev->mutex);
+
+	if (sdev->power_state) {
+		/* Write the new ps name and clear the padding */
+		for (i = 0; i < MAX_RDS_PS_NAME; i += (RDS_BLOCK / 2)) {
+			rval = si4713_tx_rds_ps(sdev, (i / (RDS_BLOCK / 2)),
+						ps_name + i);
+			if (rval < 0)
+				goto unlock;
+		}
+
+		/* Setup the size to be sent */
+		if (strlen(ps_name))
+			len = strlen(ps_name) - 1;
+		else
+			len = 1;
+
+		rval = si4713_write_property(sdev,
+				SI4713_TX_RDS_PS_MESSAGE_COUNT,
+				rds_ps_nblocks(len));
+		if (rval < 0)
+			goto unlock;
+
+		rval = si4713_write_property(sdev,
+				SI4713_TX_RDS_PS_REPEAT_COUNT,
+				DEFAULT_RDS_PS_REPEAT_COUNT * 2);
+		if (rval < 0)
+			goto unlock;
+	}
+
+	strncpy(sdev->rds_info.ps_name, ps_name, MAX_RDS_PS_NAME);
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+	return rval;
+}
+
+static int si4713_set_rds_radio_text(struct si4713_device *sdev, char *rt)
+{
+	int rval = 0, i;
+	u16 t_index = 0;
+	u8 b_index = 0, cr_inserted = 0;
+	s8 left;
+
+	mutex_lock(&sdev->mutex);
+
+	if (!sdev->power_state)
+		goto copy;
+
+	rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_CLEAR, 0, 0, 0, &left);
+	if (rval < 0)
+		goto unlock;
+
+	if (!strlen(rt))
+		goto copy;
+
+	do {
+		/* RDS spec says that if the last block isn't used,
+		 * then apply a carriage return
+		 */
+		if (t_index < (RDS_RADIOTEXT_INDEX_MAX *
+			RDS_RADIOTEXT_BLK_SIZE)) {
+			for (i = 0; i < RDS_RADIOTEXT_BLK_SIZE; i++) {
+				if (!rt[t_index + i] || rt[t_index + i] ==
+					RDS_CARRIAGE_RETURN) {
+					rt[t_index + i] = RDS_CARRIAGE_RETURN;
+					cr_inserted = 1;
+					break;
+				}
+			}
+		}
+
+		rval = si4713_tx_rds_buff(sdev, RDS_BLOCK_LOAD,
+				compose_u16(RDS_RADIOTEXT_2A, b_index++),
+				compose_u16(rt[t_index], rt[t_index + 1]),
+				compose_u16(rt[t_index + 2], rt[t_index + 3]),
+				&left);
+		if (rval < 0)
+			goto unlock;
+
+		t_index += RDS_RADIOTEXT_BLK_SIZE;
+
+		if (cr_inserted)
+			break;
+	} while (left > 0);
+
+copy:
+	strncpy(sdev->rds_info.radio_text, rt, MAX_RDS_RADIO_TEXT);
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+	return rval;
+}
+
+static int si4713_choose_econtrol_action(struct si4713_device *sdev, u32 id,
+		u32 **shadow, s32 *bit, s32 *mask, u16 *property, int *mul,
+		unsigned long **table, int *size)
+{
+	s32 rval = 0;
+
+	switch (id) {
+	/* FM_TX class controls */
+	case V4L2_CID_RDS_TX_PI:
+		*property = SI4713_TX_RDS_PI;
+		*mul = 1;
+		*shadow = &sdev->rds_info.pi;
+		break;
+	case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD:
+		*property = SI4713_TX_ACOMP_THRESHOLD;
+		*mul = 1;
+		*shadow = &sdev->acomp_info.threshold;
+		break;
+	case V4L2_CID_AUDIO_COMPRESSION_GAIN:
+		*property = SI4713_TX_ACOMP_GAIN;
+		*mul = 1;
+		*shadow = &sdev->acomp_info.gain;
+		break;
+	case V4L2_CID_PILOT_TONE_FREQUENCY:
+		*property = SI4713_TX_PILOT_FREQUENCY;
+		*mul = 1;
+		*shadow = &sdev->pilot_info.frequency;
+		break;
+	case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME:
+		*property = SI4713_TX_ACOMP_ATTACK_TIME;
+		*mul = ATTACK_TIME_UNIT;
+		*shadow = &sdev->acomp_info.attack_time;
+		break;
+	case V4L2_CID_PILOT_TONE_DEVIATION:
+		*property = SI4713_TX_PILOT_DEVIATION;
+		*mul = 10;
+		*shadow = &sdev->pilot_info.deviation;
+		break;
+	case V4L2_CID_AUDIO_LIMITER_DEVIATION:
+		*property = SI4713_TX_AUDIO_DEVIATION;
+		*mul = 10;
+		*shadow = &sdev->limiter_info.deviation;
+		break;
+	case V4L2_CID_RDS_TX_DEVIATION:
+		*property = SI4713_TX_RDS_DEVIATION;
+		*mul = 1;
+		*shadow = &sdev->rds_info.deviation;
+		break;
+
+	case V4L2_CID_RDS_TX_PTY:
+		*property = SI4713_TX_RDS_PS_MISC;
+		*bit = 5;
+		*mask = 0x1F << 5;
+		*shadow = &sdev->rds_info.pty;
+		break;
+	case V4L2_CID_AUDIO_LIMITER_ENABLED:
+		*property = SI4713_TX_ACOMP_ENABLE;
+		*bit = 1;
+		*mask = 1 << 1;
+		*shadow = &sdev->limiter_info.enabled;
+		break;
+	case V4L2_CID_AUDIO_COMPRESSION_ENABLED:
+		*property = SI4713_TX_ACOMP_ENABLE;
+		*bit = 0;
+		*mask = 1 << 0;
+		*shadow = &sdev->acomp_info.enabled;
+		break;
+	case V4L2_CID_PILOT_TONE_ENABLED:
+		*property = SI4713_TX_COMPONENT_ENABLE;
+		*bit = 0;
+		*mask = 1 << 0;
+		*shadow = &sdev->pilot_info.enabled;
+		break;
+
+	case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME:
+		*property = SI4713_TX_LIMITER_RELEASE_TIME;
+		*table = limiter_times;
+		*size = ARRAY_SIZE(limiter_times);
+		*shadow = &sdev->limiter_info.release_time;
+		break;
+	case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME:
+		*property = SI4713_TX_ACOMP_RELEASE_TIME;
+		*table = acomp_rtimes;
+		*size = ARRAY_SIZE(acomp_rtimes);
+		*shadow = &sdev->acomp_info.release_time;
+		break;
+	case V4L2_CID_TUNE_PREEMPHASIS:
+		*property = SI4713_TX_PREEMPHASIS;
+		*table = preemphasis_values;
+		*size = ARRAY_SIZE(preemphasis_values);
+		*shadow = &sdev->preemphasis;
+		break;
+
+	default:
+		rval = -EINVAL;
+	};
+
+	return rval;
+}
+
+static int si4713_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc);
+
+/* write string property */
+static int si4713_write_econtrol_string(struct si4713_device *sdev,
+				struct v4l2_ext_control *control)
+{
+	struct v4l2_queryctrl vqc;
+	int len;
+	s32 rval = 0;
+
+	vqc.id = control->id;
+	rval = si4713_queryctrl(&sdev->sd, &vqc);
+	if (rval < 0)
+		goto exit;
+
+	switch (control->id) {
+	case V4L2_CID_RDS_TX_PS_NAME: {
+		char ps_name[MAX_RDS_PS_NAME + 1];
+
+		len = control->size - 1;
+		if (len > MAX_RDS_PS_NAME) {
+			rval = -ERANGE;
+			goto exit;
+		}
+		rval = copy_from_user(ps_name, control->string, len);
+		if (rval < 0)
+			goto exit;
+		ps_name[len] = '\0';
+
+		if (strlen(ps_name) % vqc.step) {
+			rval = -ERANGE;
+			goto exit;
+		}
+
+		rval = si4713_set_rds_ps_name(sdev, ps_name);
+	}
+		break;
+
+	case V4L2_CID_RDS_TX_RADIO_TEXT: {
+		char radio_text[MAX_RDS_RADIO_TEXT + 1];
+
+		len = control->size - 1;
+		if (len > MAX_RDS_RADIO_TEXT) {
+			rval = -ERANGE;
+			goto exit;
+		}
+		rval = copy_from_user(radio_text, control->string, len);
+		if (rval < 0)
+			goto exit;
+		radio_text[len] = '\0';
+
+		if (strlen(radio_text) % vqc.step) {
+			rval = -ERANGE;
+			goto exit;
+		}
+
+		rval = si4713_set_rds_radio_text(sdev, radio_text);
+	}
+		break;
+
+	default:
+		rval = -EINVAL;
+		break;
+	};
+
+exit:
+	return rval;
+}
+
+static int validate_range(struct v4l2_subdev *sd,
+					struct v4l2_ext_control *control)
+{
+	struct v4l2_queryctrl vqc;
+	int rval;
+
+	vqc.id = control->id;
+	rval = si4713_queryctrl(sd, &vqc);
+	if (rval < 0)
+		goto exit;
+
+	if (control->value < vqc.minimum || control->value > vqc.maximum)
+		rval = -ERANGE;
+
+exit:
+	return rval;
+}
+
+/* properties which use tx_tune_power*/
+static int si4713_write_econtrol_tune(struct si4713_device *sdev,
+				struct v4l2_ext_control *control)
+{
+	s32 rval = 0;
+	u8 power, antcap;
+
+	rval = validate_range(&sdev->sd, control);
+	if (rval < 0)
+		goto exit;
+
+	mutex_lock(&sdev->mutex);
+
+	switch (control->id) {
+	case V4L2_CID_TUNE_POWER_LEVEL:
+		power = control->value;
+		antcap = sdev->antenna_capacitor;
+		break;
+	case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
+		power = sdev->power_level;
+		antcap = control->value;
+		break;
+	default:
+		rval = -EINVAL;
+		goto unlock;
+	};
+
+	if (sdev->power_state)
+		rval = si4713_tx_tune_power(sdev, power, antcap);
+
+	if (rval == 0) {
+		sdev->power_level = power;
+		sdev->antenna_capacitor = antcap;
+	}
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+exit:
+	return rval;
+}
+
+static int si4713_write_econtrol_integers(struct si4713_device *sdev,
+					struct v4l2_ext_control *control)
+{
+	s32 rval;
+	u32 *shadow = NULL, val = 0;
+	s32 bit = 0, mask = 0;
+	u16 property = 0;
+	int mul = 0;
+	unsigned long *table = NULL;
+	int size = 0;
+
+	rval = validate_range(&sdev->sd, control);
+	if (rval < 0)
+		goto exit;
+
+	rval = si4713_choose_econtrol_action(sdev, control->id, &shadow, &bit,
+			&mask, &property, &mul, &table, &size);
+	if (rval < 0)
+		goto exit;
+
+	val = control->value;
+	if (mul) {
+		val = control->value / mul;
+	} else if (table) {
+		rval = usecs_to_dev(control->value, table, size);
+		if (rval < 0)
+			goto exit;
+		val = rval;
+		rval = 0;
+	}
+
+	mutex_lock(&sdev->mutex);
+
+	if (sdev->power_state) {
+		if (mask) {
+			rval = si4713_read_property(sdev, property, &val);
+			if (rval < 0)
+				goto unlock;
+			val = set_bits(val, control->value, bit, mask);
+		}
+
+		rval = si4713_write_property(sdev, property, val);
+		if (rval < 0)
+			goto unlock;
+		if (mask)
+			val = control->value;
+	}
+
+	if (mul) {
+		*shadow = val * mul;
+	} else if (table) {
+		rval = dev_to_usecs(val, table, size);
+		if (rval < 0)
+			goto unlock;
+		*shadow = rval;
+		rval = 0;
+	} else {
+		*shadow = val;
+	}
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+exit:
+	return rval;
+}
+
+static int si4713_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f);
+static int si4713_s_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *);
+/*
+ * si4713_setup - Sets the device up with current configuration.
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+static int si4713_setup(struct si4713_device *sdev)
+{
+	struct v4l2_ext_control ctrl;
+	struct v4l2_frequency f;
+	struct v4l2_modulator vm;
+	struct si4713_device *tmp;
+	int rval = 0;
+
+	tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
+	if (!tmp)
+		return -ENOMEM;
+
+	/* Get a local copy to avoid race */
+	mutex_lock(&sdev->mutex);
+	memcpy(tmp, sdev, sizeof(*sdev));
+	mutex_unlock(&sdev->mutex);
+
+	ctrl.id = V4L2_CID_RDS_TX_PI;
+	ctrl.value = tmp->rds_info.pi;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_AUDIO_COMPRESSION_THRESHOLD;
+	ctrl.value = tmp->acomp_info.threshold;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_AUDIO_COMPRESSION_GAIN;
+	ctrl.value = tmp->acomp_info.gain;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_PILOT_TONE_FREQUENCY;
+	ctrl.value = tmp->pilot_info.frequency;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME;
+	ctrl.value = tmp->acomp_info.attack_time;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_PILOT_TONE_DEVIATION;
+	ctrl.value = tmp->pilot_info.deviation;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_AUDIO_LIMITER_DEVIATION;
+	ctrl.value = tmp->limiter_info.deviation;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_RDS_TX_DEVIATION;
+	ctrl.value = tmp->rds_info.deviation;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_RDS_TX_PTY;
+	ctrl.value = tmp->rds_info.pty;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_AUDIO_LIMITER_ENABLED;
+	ctrl.value = tmp->limiter_info.enabled;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_AUDIO_COMPRESSION_ENABLED;
+	ctrl.value = tmp->acomp_info.enabled;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_PILOT_TONE_ENABLED;
+	ctrl.value = tmp->pilot_info.enabled;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_AUDIO_LIMITER_RELEASE_TIME;
+	ctrl.value = tmp->limiter_info.release_time;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME;
+	ctrl.value = tmp->acomp_info.release_time;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_TUNE_PREEMPHASIS;
+	ctrl.value = tmp->preemphasis;
+	rval |= si4713_write_econtrol_integers(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_RDS_TX_PS_NAME;
+	rval |= si4713_set_rds_ps_name(sdev, tmp->rds_info.ps_name);
+
+	ctrl.id = V4L2_CID_RDS_TX_RADIO_TEXT;
+	rval |= si4713_set_rds_radio_text(sdev, tmp->rds_info.radio_text);
+
+	/* Device procedure needs to set frequency first */
+	f.frequency = tmp->frequency ? tmp->frequency : DEFAULT_FREQUENCY;
+	f.frequency = si4713_to_v4l2(f.frequency);
+	rval |= si4713_s_frequency(&sdev->sd, &f);
+
+	ctrl.id = V4L2_CID_TUNE_POWER_LEVEL;
+	ctrl.value = tmp->power_level;
+	rval |= si4713_write_econtrol_tune(sdev, &ctrl);
+
+	ctrl.id = V4L2_CID_TUNE_ANTENNA_CAPACITOR;
+	ctrl.value = tmp->antenna_capacitor;
+	rval |= si4713_write_econtrol_tune(sdev, &ctrl);
+
+	vm.index = 0;
+	if (tmp->stereo)
+		vm.txsubchans = V4L2_TUNER_SUB_STEREO;
+	else
+		vm.txsubchans = V4L2_TUNER_SUB_MONO;
+	if (tmp->rds_info.enabled)
+		vm.txsubchans |= V4L2_TUNER_SUB_RDS;
+	si4713_s_modulator(&sdev->sd, &vm);
+
+	kfree(tmp);
+
+	return rval;
+}
+
+/*
+ * si4713_initialize - Sets the device up with default configuration.
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+static int si4713_initialize(struct si4713_device *sdev)
+{
+	int rval;
+
+	rval = si4713_set_power_state(sdev, POWER_ON);
+	if (rval < 0)
+		goto exit;
+
+	rval = si4713_checkrev(sdev);
+	if (rval < 0)
+		goto exit;
+
+	rval = si4713_set_power_state(sdev, POWER_OFF);
+	if (rval < 0)
+		goto exit;
+
+	mutex_lock(&sdev->mutex);
+
+	sdev->rds_info.pi = DEFAULT_RDS_PI;
+	sdev->rds_info.pty = DEFAULT_RDS_PTY;
+	sdev->rds_info.deviation = DEFAULT_RDS_DEVIATION;
+	strlcpy(sdev->rds_info.ps_name, DEFAULT_RDS_PS_NAME, MAX_RDS_PS_NAME);
+	strlcpy(sdev->rds_info.radio_text, DEFAULT_RDS_RADIO_TEXT,
+							MAX_RDS_RADIO_TEXT);
+	sdev->rds_info.enabled = 1;
+
+	sdev->limiter_info.release_time = DEFAULT_LIMITER_RTIME;
+	sdev->limiter_info.deviation = DEFAULT_LIMITER_DEV;
+	sdev->limiter_info.enabled = 1;
+
+	sdev->pilot_info.deviation = DEFAULT_PILOT_DEVIATION;
+	sdev->pilot_info.frequency = DEFAULT_PILOT_FREQUENCY;
+	sdev->pilot_info.enabled = 1;
+
+	sdev->acomp_info.release_time = DEFAULT_ACOMP_RTIME;
+	sdev->acomp_info.attack_time = DEFAULT_ACOMP_ATIME;
+	sdev->acomp_info.threshold = DEFAULT_ACOMP_THRESHOLD;
+	sdev->acomp_info.gain = DEFAULT_ACOMP_GAIN;
+	sdev->acomp_info.enabled = 1;
+
+	sdev->frequency = DEFAULT_FREQUENCY;
+	sdev->preemphasis = DEFAULT_PREEMPHASIS;
+	sdev->mute = DEFAULT_MUTE;
+	sdev->power_level = DEFAULT_POWER_LEVEL;
+	sdev->antenna_capacitor = 0;
+	sdev->stereo = 1;
+	sdev->tune_rnl = DEFAULT_TUNE_RNL;
+
+	mutex_unlock(&sdev->mutex);
+
+exit:
+	return rval;
+}
+
+/* read string property */
+static int si4713_read_econtrol_string(struct si4713_device *sdev,
+				struct v4l2_ext_control *control)
+{
+	s32 rval = 0;
+
+	switch (control->id) {
+	case V4L2_CID_RDS_TX_PS_NAME:
+		if (strlen(sdev->rds_info.ps_name) + 1 > control->size) {
+			control->size = MAX_RDS_PS_NAME + 1;
+			rval = -ENOSPC;
+			goto exit;
+		}
+		rval = copy_to_user(control->string, sdev->rds_info.ps_name,
+					strlen(sdev->rds_info.ps_name) + 1);
+		break;
+
+	case V4L2_CID_RDS_TX_RADIO_TEXT:
+		if (strlen(sdev->rds_info.radio_text) + 1 > control->size) {
+			control->size = MAX_RDS_RADIO_TEXT + 1;
+			rval = -ENOSPC;
+			goto exit;
+		}
+		rval = copy_to_user(control->string, sdev->rds_info.radio_text,
+					strlen(sdev->rds_info.radio_text) + 1);
+		break;
+
+	default:
+		rval = -EINVAL;
+		break;
+	};
+
+exit:
+	return rval;
+}
+
+/*
+ * si4713_update_tune_status - update properties from tx_tune_status
+ * command. Must be called with sdev->mutex held.
+ * @sdev: si4713_device structure for the device we are communicating
+ */
+static int si4713_update_tune_status(struct si4713_device *sdev)
+{
+	int rval;
+	u16 f = 0;
+	u8 p = 0, a = 0, n = 0;
+
+	rval = si4713_tx_tune_status(sdev, 0x00, &f, &p, &a, &n);
+
+	if (rval < 0)
+		goto exit;
+
+	sdev->power_level = p;
+	sdev->antenna_capacitor = a;
+	sdev->tune_rnl = n;
+
+exit:
+	return rval;
+}
+
+/* properties which use tx_tune_status */
+static int si4713_read_econtrol_tune(struct si4713_device *sdev,
+				struct v4l2_ext_control *control)
+{
+	s32 rval = 0;
+
+	mutex_lock(&sdev->mutex);
+
+	if (sdev->power_state) {
+		rval = si4713_update_tune_status(sdev);
+		if (rval < 0)
+			goto unlock;
+	}
+
+	switch (control->id) {
+	case V4L2_CID_TUNE_POWER_LEVEL:
+		control->value = sdev->power_level;
+		break;
+	case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
+		control->value = sdev->antenna_capacitor;
+		break;
+	default:
+		rval = -EINVAL;
+	};
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+	return rval;
+}
+
+static int si4713_read_econtrol_integers(struct si4713_device *sdev,
+				struct v4l2_ext_control *control)
+{
+	s32 rval;
+	u32 *shadow = NULL, val = 0;
+	s32 bit = 0, mask = 0;
+	u16 property = 0;
+	int mul = 0;
+	unsigned long *table = NULL;
+	int size = 0;
+
+	rval = si4713_choose_econtrol_action(sdev, control->id, &shadow, &bit,
+			&mask, &property, &mul, &table, &size);
+	if (rval < 0)
+		goto exit;
+
+	mutex_lock(&sdev->mutex);
+
+	if (sdev->power_state) {
+		rval = si4713_read_property(sdev, property, &val);
+		if (rval < 0)
+			goto unlock;
+
+		/* Keep negative values for threshold */
+		if (control->id == V4L2_CID_AUDIO_COMPRESSION_THRESHOLD)
+			*shadow = (s16)val;
+		else if (mask)
+			*shadow = get_status_bit(val, bit, mask);
+		else if (mul)
+			*shadow = val * mul;
+		else
+			*shadow = dev_to_usecs(val, table, size);
+	}
+
+	control->value = *shadow;
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+exit:
+	return rval;
+}
+
+/*
+ * Video4Linux Subdev Interface
+ */
+/* si4713_s_ext_ctrls - set extended controls value */
+static int si4713_s_ext_ctrls(struct v4l2_subdev *sd,
+				struct v4l2_ext_controls *ctrls)
+{
+	struct si4713_device *sdev = to_si4713_device(sd);
+	int i;
+
+	if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FM_TX)
+		return -EINVAL;
+
+	for (i = 0; i < ctrls->count; i++) {
+		int err;
+
+		switch ((ctrls->controls + i)->id) {
+		case V4L2_CID_RDS_TX_PS_NAME:
+		case V4L2_CID_RDS_TX_RADIO_TEXT:
+			err = si4713_write_econtrol_string(sdev,
+							ctrls->controls + i);
+			break;
+		case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
+		case V4L2_CID_TUNE_POWER_LEVEL:
+			err = si4713_write_econtrol_tune(sdev,
+							ctrls->controls + i);
+			break;
+		default:
+			err = si4713_write_econtrol_integers(sdev,
+							ctrls->controls + i);
+		}
+
+		if (err < 0) {
+			ctrls->error_idx = i;
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+/* si4713_g_ext_ctrls - get extended controls value */
+static int si4713_g_ext_ctrls(struct v4l2_subdev *sd,
+				struct v4l2_ext_controls *ctrls)
+{
+	struct si4713_device *sdev = to_si4713_device(sd);
+	int i;
+
+	if (ctrls->ctrl_class != V4L2_CTRL_CLASS_FM_TX)
+		return -EINVAL;
+
+	for (i = 0; i < ctrls->count; i++) {
+		int err;
+
+		switch ((ctrls->controls + i)->id) {
+		case V4L2_CID_RDS_TX_PS_NAME:
+		case V4L2_CID_RDS_TX_RADIO_TEXT:
+			err = si4713_read_econtrol_string(sdev,
+							ctrls->controls + i);
+			break;
+		case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
+		case V4L2_CID_TUNE_POWER_LEVEL:
+			err = si4713_read_econtrol_tune(sdev,
+							ctrls->controls + i);
+			break;
+		default:
+			err = si4713_read_econtrol_integers(sdev,
+							ctrls->controls + i);
+		}
+
+		if (err < 0) {
+			ctrls->error_idx = i;
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+/* si4713_queryctrl - enumerate control items */
+static int si4713_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
+{
+	int rval = 0;
+
+	switch (qc->id) {
+	/* User class controls */
+	case V4L2_CID_AUDIO_MUTE:
+		rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, DEFAULT_MUTE);
+		break;
+	/* FM_TX class controls */
+	case V4L2_CID_RDS_TX_PI:
+		rval = v4l2_ctrl_query_fill(qc, 0, 0xFFFF, 1, DEFAULT_RDS_PI);
+		break;
+	case V4L2_CID_RDS_TX_PTY:
+		rval = v4l2_ctrl_query_fill(qc, 0, 31, 1, DEFAULT_RDS_PTY);
+		break;
+	case V4L2_CID_RDS_TX_DEVIATION:
+		rval = v4l2_ctrl_query_fill(qc, 0, MAX_RDS_DEVIATION,
+						10, DEFAULT_RDS_DEVIATION);
+		break;
+	case V4L2_CID_RDS_TX_PS_NAME:
+		/*
+		 * Report step as 8. From RDS spec, psname
+		 * should be 8. But there are receivers which scroll strings
+		 * sized as 8xN.
+		 */
+		rval = v4l2_ctrl_query_fill(qc, 0, MAX_RDS_PS_NAME, 8, 0);
+		break;
+	case V4L2_CID_RDS_TX_RADIO_TEXT:
+		/*
+		 * Report step as 32 (2A block). From RDS spec,
+		 * radio text should be 32 for 2A block. But there are receivers
+		 * which scroll strings sized as 32xN. Setting default to 32.
+		 */
+		rval = v4l2_ctrl_query_fill(qc, 0, MAX_RDS_RADIO_TEXT, 32, 0);
+		break;
+
+	case V4L2_CID_AUDIO_LIMITER_ENABLED:
+		rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+		break;
+	case V4L2_CID_AUDIO_LIMITER_RELEASE_TIME:
+		rval = v4l2_ctrl_query_fill(qc, 250, MAX_LIMITER_RELEASE_TIME,
+						50, DEFAULT_LIMITER_RTIME);
+		break;
+	case V4L2_CID_AUDIO_LIMITER_DEVIATION:
+		rval = v4l2_ctrl_query_fill(qc, 0, MAX_LIMITER_DEVIATION,
+						10, DEFAULT_LIMITER_DEV);
+		break;
+
+	case V4L2_CID_AUDIO_COMPRESSION_ENABLED:
+		rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+		break;
+	case V4L2_CID_AUDIO_COMPRESSION_GAIN:
+		rval = v4l2_ctrl_query_fill(qc, 0, MAX_ACOMP_GAIN, 1,
+						DEFAULT_ACOMP_GAIN);
+		break;
+	case V4L2_CID_AUDIO_COMPRESSION_THRESHOLD:
+		rval = v4l2_ctrl_query_fill(qc, MIN_ACOMP_THRESHOLD,
+						MAX_ACOMP_THRESHOLD, 1,
+						DEFAULT_ACOMP_THRESHOLD);
+		break;
+	case V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME:
+		rval = v4l2_ctrl_query_fill(qc, 0, MAX_ACOMP_ATTACK_TIME,
+						500, DEFAULT_ACOMP_ATIME);
+		break;
+	case V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME:
+		rval = v4l2_ctrl_query_fill(qc, 100000, MAX_ACOMP_RELEASE_TIME,
+						100000, DEFAULT_ACOMP_RTIME);
+		break;
+
+	case V4L2_CID_PILOT_TONE_ENABLED:
+		rval = v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+		break;
+	case V4L2_CID_PILOT_TONE_DEVIATION:
+		rval = v4l2_ctrl_query_fill(qc, 0, MAX_PILOT_DEVIATION,
+						10, DEFAULT_PILOT_DEVIATION);
+		break;
+	case V4L2_CID_PILOT_TONE_FREQUENCY:
+		rval = v4l2_ctrl_query_fill(qc, 0, MAX_PILOT_FREQUENCY,
+						1, DEFAULT_PILOT_FREQUENCY);
+		break;
+
+	case V4L2_CID_TUNE_PREEMPHASIS:
+		rval = v4l2_ctrl_query_fill(qc, V4L2_PREEMPHASIS_DISABLED,
+						V4L2_PREEMPHASIS_75_uS, 1,
+						V4L2_PREEMPHASIS_50_uS);
+		break;
+	case V4L2_CID_TUNE_POWER_LEVEL:
+		rval = v4l2_ctrl_query_fill(qc, 0, 120, 1, DEFAULT_POWER_LEVEL);
+		break;
+	case V4L2_CID_TUNE_ANTENNA_CAPACITOR:
+		rval = v4l2_ctrl_query_fill(qc, 0, 191, 1, 0);
+		break;
+	default:
+		rval = -EINVAL;
+		break;
+	};
+
+	return rval;
+}
+
+/* si4713_g_ctrl - get the value of a control */
+static int si4713_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+	struct si4713_device *sdev = to_si4713_device(sd);
+	int rval = 0;
+
+	if (!sdev)
+		return -ENODEV;
+
+	mutex_lock(&sdev->mutex);
+
+	if (sdev->power_state) {
+		rval = si4713_read_property(sdev, SI4713_TX_LINE_INPUT_MUTE,
+						&sdev->mute);
+
+		if (rval < 0)
+			goto unlock;
+	}
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		ctrl->value = get_mute(sdev->mute);
+		break;
+	}
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+	return rval;
+}
+
+/* si4713_s_ctrl - set the value of a control */
+static int si4713_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+	struct si4713_device *sdev = to_si4713_device(sd);
+	int rval = 0;
+
+	if (!sdev)
+		return -ENODEV;
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUDIO_MUTE:
+		if (ctrl->value) {
+			rval = si4713_set_mute(sdev, ctrl->value);
+			if (rval < 0)
+				goto exit;
+
+			rval = si4713_set_power_state(sdev, POWER_DOWN);
+		} else {
+			rval = si4713_set_power_state(sdev, POWER_UP);
+			if (rval < 0)
+				goto exit;
+
+			rval = si4713_setup(sdev);
+			if (rval < 0)
+				goto exit;
+
+			rval = si4713_set_mute(sdev, ctrl->value);
+		}
+		break;
+	}
+
+exit:
+	return rval;
+}
+
+/* si4713_ioctl - deal with private ioctls (only rnl for now) */
+long si4713_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
+{
+	struct si4713_device *sdev = to_si4713_device(sd);
+	struct si4713_rnl *rnl = arg;
+	u16 frequency;
+	int rval = 0;
+
+	if (!arg)
+		return -EINVAL;
+
+	mutex_lock(&sdev->mutex);
+	switch (cmd) {
+	case SI4713_IOC_MEASURE_RNL:
+		frequency = v4l2_to_si4713(rnl->frequency);
+
+		if (sdev->power_state) {
+			/* Set desired measurement frequency */
+			rval = si4713_tx_tune_measure(sdev, frequency, 0);
+			if (rval < 0)
+				goto unlock;
+			/* get results from tune status */
+			rval = si4713_update_tune_status(sdev);
+			if (rval < 0)
+				goto unlock;
+		}
+		rnl->rnl = sdev->tune_rnl;
+		break;
+
+	default:
+		/* nothing */
+		rval = -ENOIOCTLCMD;
+	}
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+	return rval;
+}
+
+static const struct v4l2_subdev_core_ops si4713_subdev_core_ops = {
+	.queryctrl	= si4713_queryctrl,
+	.g_ext_ctrls	= si4713_g_ext_ctrls,
+	.s_ext_ctrls	= si4713_s_ext_ctrls,
+	.g_ctrl		= si4713_g_ctrl,
+	.s_ctrl		= si4713_s_ctrl,
+	.ioctl		= si4713_ioctl,
+};
+
+/* si4713_g_modulator - get modulator attributes */
+static int si4713_g_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm)
+{
+	struct si4713_device *sdev = to_si4713_device(sd);
+	int rval = 0;
+
+	if (!sdev) {
+		rval = -ENODEV;
+		goto exit;
+	}
+
+	if (vm->index > 0) {
+		rval = -EINVAL;
+		goto exit;
+	}
+
+	strncpy(vm->name, "FM Modulator", 32);
+	vm->capability = V4L2_TUNER_CAP_STEREO | V4L2_TUNER_CAP_LOW |
+						V4L2_TUNER_CAP_RDS;
+
+	/* Report current frequency range limits */
+	vm->rangelow = si4713_to_v4l2(FREQ_RANGE_LOW);
+	vm->rangehigh = si4713_to_v4l2(FREQ_RANGE_HIGH);
+
+	mutex_lock(&sdev->mutex);
+
+	if (sdev->power_state) {
+		u32 comp_en = 0;
+
+		rval = si4713_read_property(sdev, SI4713_TX_COMPONENT_ENABLE,
+						&comp_en);
+		if (rval < 0)
+			goto unlock;
+
+		sdev->stereo = get_status_bit(comp_en, 1, 1 << 1);
+		sdev->rds_info.enabled = get_status_bit(comp_en, 2, 1 << 2);
+	}
+
+	/* Report current audio mode: mono or stereo */
+	if (sdev->stereo)
+		vm->txsubchans = V4L2_TUNER_SUB_STEREO;
+	else
+		vm->txsubchans = V4L2_TUNER_SUB_MONO;
+
+	/* Report rds feature status */
+	if (sdev->rds_info.enabled)
+		vm->txsubchans |= V4L2_TUNER_SUB_RDS;
+	else
+		vm->txsubchans &= ~V4L2_TUNER_SUB_RDS;
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+exit:
+	return rval;
+}
+
+/* si4713_s_modulator - set modulator attributes */
+static int si4713_s_modulator(struct v4l2_subdev *sd, struct v4l2_modulator *vm)
+{
+	struct si4713_device *sdev = to_si4713_device(sd);
+	int rval = 0;
+	u16 stereo, rds;
+	u32 p;
+
+	if (!sdev) {
+		rval = -ENODEV;
+		goto exit;
+	}
+
+	if (vm->index > 0) {
+		rval = -EINVAL;
+		goto exit;
+	}
+
+	/* Set audio mode: mono or stereo */
+	if (vm->txsubchans & V4L2_TUNER_SUB_STEREO)
+		stereo = 1;
+	else if (vm->txsubchans & V4L2_TUNER_SUB_MONO)
+		stereo = 0;
+	else
+		rval = -EINVAL;
+	if (rval < 0)
+		goto exit;
+
+	rds = !!(vm->txsubchans & V4L2_TUNER_SUB_RDS);
+
+	mutex_lock(&sdev->mutex);
+
+	if (sdev->power_state) {
+		rval = si4713_read_property(sdev,
+						SI4713_TX_COMPONENT_ENABLE, &p);
+		if (rval < 0)
+			goto unlock;
+
+		p = set_bits(p, stereo, 1, 1 << 1);
+		p = set_bits(p, rds, 2, 1 << 2);
+
+		rval = si4713_write_property(sdev,
+						SI4713_TX_COMPONENT_ENABLE, p);
+		if (rval < 0)
+			goto unlock;
+	}
+
+	sdev->stereo = stereo;
+	sdev->rds_info.enabled = rds;
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+exit:
+	return rval;
+}
+
+/* si4713_g_frequency - get tuner or modulator radio frequency */
+static int si4713_g_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
+{
+	struct si4713_device *sdev = to_si4713_device(sd);
+	int rval = 0;
+
+	f->type = V4L2_TUNER_RADIO;
+
+	mutex_lock(&sdev->mutex);
+
+	if (sdev->power_state) {
+		u16 freq;
+		u8 p, a, n;
+
+		rval = si4713_tx_tune_status(sdev, 0x00, &freq, &p, &a, &n);
+		if (rval < 0)
+			goto unlock;
+
+		sdev->frequency = freq;
+	}
+
+	f->frequency = si4713_to_v4l2(sdev->frequency);
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+	return rval;
+}
+
+/* si4713_s_frequency - set tuner or modulator radio frequency */
+static int si4713_s_frequency(struct v4l2_subdev *sd, struct v4l2_frequency *f)
+{
+	struct si4713_device *sdev = to_si4713_device(sd);
+	int rval = 0;
+	u16 frequency = v4l2_to_si4713(f->frequency);
+
+	/* Check frequency range */
+	if (frequency < FREQ_RANGE_LOW || frequency > FREQ_RANGE_HIGH)
+		return -EDOM;
+
+	mutex_lock(&sdev->mutex);
+
+	if (sdev->power_state) {
+		rval = si4713_tx_tune_freq(sdev, frequency);
+		if (rval < 0)
+			goto unlock;
+		frequency = rval;
+		rval = 0;
+	}
+	sdev->frequency = frequency;
+	f->frequency = si4713_to_v4l2(frequency);
+
+unlock:
+	mutex_unlock(&sdev->mutex);
+	return rval;
+}
+
+static const struct v4l2_subdev_tuner_ops si4713_subdev_tuner_ops = {
+	.g_frequency	= si4713_g_frequency,
+	.s_frequency	= si4713_s_frequency,
+	.g_modulator	= si4713_g_modulator,
+	.s_modulator	= si4713_s_modulator,
+};
+
+static const struct v4l2_subdev_ops si4713_subdev_ops = {
+	.core		= &si4713_subdev_core_ops,
+	.tuner		= &si4713_subdev_tuner_ops,
+};
+
+/*
+ * I2C driver interface
+ */
+/* si4713_probe - probe for the device */
+static int si4713_probe(struct i2c_client *client,
+					const struct i2c_device_id *id)
+{
+	struct si4713_device *sdev;
+	int rval;
+
+	sdev = kzalloc(sizeof *sdev, GFP_KERNEL);
+	if (!sdev) {
+		dev_err(&client->dev, "Failed to alloc video device.\n");
+		rval = -ENOMEM;
+		goto exit;
+	}
+
+	sdev->platform_data = client->dev.platform_data;
+	if (!sdev->platform_data) {
+		v4l2_err(&sdev->sd, "No platform data registered.\n");
+		rval = -ENODEV;
+		goto free_sdev;
+	}
+
+	v4l2_i2c_subdev_init(&sdev->sd, client, &si4713_subdev_ops);
+
+	mutex_init(&sdev->mutex);
+	init_completion(&sdev->work);
+
+	if (client->irq) {
+		rval = request_irq(client->irq,
+			si4713_handler, IRQF_TRIGGER_FALLING | IRQF_DISABLED,
+			client->name, sdev);
+		if (rval < 0) {
+			v4l2_err(&sdev->sd, "Could not request IRQ\n");
+			goto free_sdev;
+		}
+		v4l2_dbg(1, debug, &sdev->sd, "IRQ requested.\n");
+	} else {
+		v4l2_warn(&sdev->sd, "IRQ not configured. Using timeouts.\n");
+	}
+
+	rval = si4713_initialize(sdev);
+	if (rval < 0) {
+		v4l2_err(&sdev->sd, "Failed to probe device information.\n");
+		goto free_irq;
+	}
+
+	return 0;
+
+free_irq:
+	if (client->irq)
+		free_irq(client->irq, sdev);
+free_sdev:
+	kfree(sdev);
+exit:
+	return rval;
+}
+
+/* si4713_remove - remove the device */
+static int si4713_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct si4713_device *sdev = to_si4713_device(sd);
+
+	if (sdev->power_state)
+		si4713_set_power_state(sdev, POWER_DOWN);
+
+	if (client->irq > 0)
+		free_irq(client->irq, sdev);
+
+	v4l2_device_unregister_subdev(sd);
+
+	kfree(sdev);
+
+	return 0;
+}
+
+/* si4713_i2c_driver - i2c driver interface */
+static const struct i2c_device_id si4713_id[] = {
+	{ "si4713" , 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(i2c, si4713_id);
+
+static struct i2c_driver si4713_i2c_driver = {
+	.driver		= {
+		.name	= "si4713",
+	},
+	.probe		= si4713_probe,
+	.remove         = si4713_remove,
+	.id_table       = si4713_id,
+};
+
+/* Module Interface */
+static int __init si4713_module_init(void)
+{
+	return i2c_add_driver(&si4713_i2c_driver);
+}
+
+static void __exit si4713_module_exit(void)
+{
+	i2c_del_driver(&si4713_i2c_driver);
+}
+
+module_init(si4713_module_init);
+module_exit(si4713_module_exit);
+
diff --git a/linux/drivers/media/radio/si4713-i2c.h b/linux/drivers/media/radio/si4713-i2c.h
new file mode 100644
index 000000000..faf8cff12
--- /dev/null
+++ b/linux/drivers/media/radio/si4713-i2c.h
@@ -0,0 +1,237 @@
+/*
+ * drivers/media/radio/si4713-i2c.h
+ *
+ * Property and commands definitions for Si4713 radio transmitter chip.
+ *
+ * Copyright (c) 2008 Instituto Nokia de Tecnologia - INdT
+ * Contact: Eduardo Valentin <eduardo.valentin@nokia.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ */
+
+#ifndef SI4713_I2C_H
+#define SI4713_I2C_H
+
+#include <media/v4l2-subdev.h>
+#include <media/si4713.h>
+
+#define SI4713_PRODUCT_NUMBER		0x0D
+
+/* Command Timeouts */
+#define DEFAULT_TIMEOUT			500
+#define TIMEOUT_SET_PROPERTY		20
+#define TIMEOUT_TX_TUNE_POWER		30000
+#define TIMEOUT_TX_TUNE			110000
+#define TIMEOUT_POWER_UP		200000
+
+/*
+ * Command and its arguments definitions
+ */
+#define SI4713_PWUP_CTSIEN		(1<<7)
+#define SI4713_PWUP_GPO2OEN		(1<<6)
+#define SI4713_PWUP_PATCH		(1<<5)
+#define SI4713_PWUP_XOSCEN		(1<<4)
+#define SI4713_PWUP_FUNC_TX		0x02
+#define SI4713_PWUP_FUNC_PATCH		0x0F
+#define SI4713_PWUP_OPMOD_ANALOG	0x50
+#define SI4713_PWUP_OPMOD_DIGITAL	0x0F
+#define SI4713_PWUP_NARGS		2
+#define SI4713_PWUP_NRESP		1
+#define SI4713_CMD_POWER_UP		0x01
+
+#define SI4713_GETREV_NRESP		9
+#define SI4713_CMD_GET_REV		0x10
+
+#define SI4713_PWDN_NRESP		1
+#define SI4713_CMD_POWER_DOWN		0x11
+
+#define SI4713_SET_PROP_NARGS		5
+#define SI4713_SET_PROP_NRESP		1
+#define SI4713_CMD_SET_PROPERTY		0x12
+
+#define SI4713_GET_PROP_NARGS		3
+#define SI4713_GET_PROP_NRESP		4
+#define SI4713_CMD_GET_PROPERTY		0x13
+
+#define SI4713_GET_STATUS_NRESP		1
+#define SI4713_CMD_GET_INT_STATUS	0x14
+
+#define SI4713_CMD_PATCH_ARGS		0x15
+#define SI4713_CMD_PATCH_DATA		0x16
+
+#define SI4713_MAX_FREQ			10800
+#define SI4713_MIN_FREQ			7600
+#define SI4713_TXFREQ_NARGS		3
+#define SI4713_TXFREQ_NRESP		1
+#define SI4713_CMD_TX_TUNE_FREQ		0x30
+
+#define SI4713_MAX_POWER		120
+#define SI4713_MIN_POWER		88
+#define SI4713_MAX_ANTCAP		191
+#define SI4713_MIN_ANTCAP		0
+#define SI4713_TXPWR_NARGS		4
+#define SI4713_TXPWR_NRESP		1
+#define SI4713_CMD_TX_TUNE_POWER	0x31
+
+#define SI4713_TXMEA_NARGS		4
+#define SI4713_TXMEA_NRESP		1
+#define SI4713_CMD_TX_TUNE_MEASURE	0x32
+
+#define SI4713_INTACK_MASK		0x01
+#define SI4713_TXSTATUS_NARGS		1
+#define SI4713_TXSTATUS_NRESP		8
+#define SI4713_CMD_TX_TUNE_STATUS	0x33
+
+#define SI4713_OVERMOD_BIT		(1 << 2)
+#define SI4713_IALH_BIT			(1 << 1)
+#define SI4713_IALL_BIT			(1 << 0)
+#define SI4713_ASQSTATUS_NARGS		1
+#define SI4713_ASQSTATUS_NRESP		5
+#define SI4713_CMD_TX_ASQ_STATUS	0x34
+
+#define SI4713_RDSBUFF_MODE_MASK	0x87
+#define SI4713_RDSBUFF_NARGS		7
+#define SI4713_RDSBUFF_NRESP		6
+#define SI4713_CMD_TX_RDS_BUFF		0x35
+
+#define SI4713_RDSPS_PSID_MASK		0x1F
+#define SI4713_RDSPS_NARGS		5
+#define SI4713_RDSPS_NRESP		1
+#define SI4713_CMD_TX_RDS_PS		0x36
+
+#define SI4713_CMD_GPO_CTL		0x80
+#define SI4713_CMD_GPO_SET		0x81
+
+/*
+ * Bits from status response
+ */
+#define SI4713_CTS			(1<<7)
+#define SI4713_ERR			(1<<6)
+#define SI4713_RDS_INT			(1<<2)
+#define SI4713_ASQ_INT			(1<<1)
+#define SI4713_STC_INT			(1<<0)
+
+/*
+ * Property definitions
+ */
+#define SI4713_GPO_IEN			0x0001
+#define SI4713_DIG_INPUT_FORMAT		0x0101
+#define SI4713_DIG_INPUT_SAMPLE_RATE	0x0103
+#define SI4713_REFCLK_FREQ		0x0201
+#define SI4713_REFCLK_PRESCALE		0x0202
+#define SI4713_TX_COMPONENT_ENABLE	0x2100
+#define SI4713_TX_AUDIO_DEVIATION	0x2101
+#define SI4713_TX_PILOT_DEVIATION	0x2102
+#define SI4713_TX_RDS_DEVIATION		0x2103
+#define SI4713_TX_LINE_INPUT_LEVEL	0x2104
+#define SI4713_TX_LINE_INPUT_MUTE	0x2105
+#define SI4713_TX_PREEMPHASIS		0x2106
+#define SI4713_TX_PILOT_FREQUENCY	0x2107
+#define SI4713_TX_ACOMP_ENABLE		0x2200
+#define SI4713_TX_ACOMP_THRESHOLD	0x2201
+#define SI4713_TX_ACOMP_ATTACK_TIME	0x2202
+#define SI4713_TX_ACOMP_RELEASE_TIME	0x2203
+#define SI4713_TX_ACOMP_GAIN		0x2204
+#define SI4713_TX_LIMITER_RELEASE_TIME	0x2205
+#define SI4713_TX_ASQ_INTERRUPT_SOURCE	0x2300
+#define SI4713_TX_ASQ_LEVEL_LOW		0x2301
+#define SI4713_TX_ASQ_DURATION_LOW	0x2302
+#define SI4713_TX_ASQ_LEVEL_HIGH	0x2303
+#define SI4713_TX_ASQ_DURATION_HIGH	0x2304
+#define SI4713_TX_RDS_INTERRUPT_SOURCE	0x2C00
+#define SI4713_TX_RDS_PI		0x2C01
+#define SI4713_TX_RDS_PS_MIX		0x2C02
+#define SI4713_TX_RDS_PS_MISC		0x2C03
+#define SI4713_TX_RDS_PS_REPEAT_COUNT	0x2C04
+#define SI4713_TX_RDS_PS_MESSAGE_COUNT	0x2C05
+#define SI4713_TX_RDS_PS_AF		0x2C06
+#define SI4713_TX_RDS_FIFO_SIZE		0x2C07
+
+#define PREEMPHASIS_USA			75
+#define PREEMPHASIS_EU			50
+#define PREEMPHASIS_DISABLED		0
+#define FMPE_USA			0x00
+#define FMPE_EU				0x01
+#define FMPE_DISABLED			0x02
+
+#define POWER_UP			0x01
+#define POWER_DOWN			0x00
+
+struct rds_info {
+	u32 pi;
+#define MAX_RDS_PTY			31
+	u32 pty;
+#define MAX_RDS_DEVIATION		90000
+	u32 deviation;
+/*
+ * PSNAME is known to be defined as 8 character sized (RDS Spec).
+ * However, there is receivers which scroll PSNAME 8xN sized.
+ */
+#define MAX_RDS_PS_NAME			96
+	u8 ps_name[MAX_RDS_PS_NAME + 1];
+/*
+ * MAX_RDS_RADIO_TEXT is known to be defined as 32 (2A group) or 64 (2B group)
+ * character sized (RDS Spec).
+ * However, there is receivers which scroll them as well.
+ */
+#define MAX_RDS_RADIO_TEXT		384
+	u8 radio_text[MAX_RDS_RADIO_TEXT + 1];
+	u32 enabled;
+};
+
+struct limiter_info {
+#define MAX_LIMITER_RELEASE_TIME	102390
+	u32 release_time;
+#define MAX_LIMITER_DEVIATION		90000
+	u32 deviation;
+	u32 enabled;
+};
+
+struct pilot_info {
+#define MAX_PILOT_DEVIATION		90000
+	u32 deviation;
+#define MAX_PILOT_FREQUENCY		19000
+	u32 frequency;
+	u32 enabled;
+};
+
+struct acomp_info {
+#define MAX_ACOMP_RELEASE_TIME		1000000
+	u32 release_time;
+#define MAX_ACOMP_ATTACK_TIME		5000
+	u32 attack_time;
+#define MAX_ACOMP_THRESHOLD		0
+#define MIN_ACOMP_THRESHOLD		(-40)
+	s32 threshold;
+#define MAX_ACOMP_GAIN			20
+	u32 gain;
+	u32 enabled;
+};
+
+/*
+ * si4713_device - private data
+ */
+struct si4713_device {
+	/* v4l2_subdev and i2c reference (v4l2_subdev priv data) */
+	struct v4l2_subdev sd;
+	/* private data structures */
+	struct mutex mutex;
+	struct completion work;
+	struct si4713_platform_data *platform_data;
+	struct rds_info rds_info;
+	struct limiter_info limiter_info;
+	struct pilot_info pilot_info;
+	struct acomp_info acomp_info;
+	u32 frequency;
+	u32 preemphasis;
+	u32 mute;
+	u32 power_level;
+	u32 power_state;
+	u32 antenna_capacitor;
+	u32 stereo;
+	u32 tune_rnl;
+};
+#endif /* ifndef SI4713_I2C_H */