4 files changed, 16 insertions, 8 deletions

diff --git a/linux/drivers/media/video/uvc/Kconfig b/linux/drivers/media/video/uvc/Kconfig
index c2d9760de..2956a7637 100644
--- a/linux/drivers/media/video/uvc/Kconfig
+++ b/linux/drivers/media/video/uvc/Kconfig
@@ -9,7 +9,7 @@ config USB_VIDEO_CLASS
 config USB_VIDEO_CLASS_INPUT_EVDEV
 	bool "UVC input events device support"
 	default y
-	depends on USB_VIDEO_CLASS && INPUT
+	depends on USB_VIDEO_CLASS=INPUT || INPUT=y
 	---help---
 	  This option makes USB Video Class devices register an input device
 	  to report button events.
diff --git a/linux/drivers/media/video/uvc/uvc_status.c b/linux/drivers/media/video/uvc/uvc_status.c
index 4f4171fa8..1e1bda413 100644
--- a/linux/drivers/media/video/uvc/uvc_status.c
+++ b/linux/drivers/media/video/uvc/uvc_status.c
@@ -47,8 +47,8 @@ static int uvc_input_init(struct uvc_device *dev)
 	input->cdev.dev = &dev->intf->dev;
 #endif
 
-	set_bit(EV_KEY, input->evbit);
-	set_bit(BTN_0, input->keybit);
+	__set_bit(EV_KEY, input->evbit);
+	__set_bit(KEY_CAMERA, input->keybit);
 
 	if ((ret = input_register_device(input)) < 0)
 		goto error;
@@ -70,8 +70,10 @@ static void uvc_input_cleanup(struct uvc_device *dev)
 static void uvc_input_report_key(struct uvc_device *dev, unsigned int code,
 	int value)
 {
-	if (dev->input)
+	if (dev->input) {
 		input_report_key(dev->input, code, value);
+		input_sync(dev->input);
+	}
 }
 
 #else
@@ -96,7 +98,7 @@ static void uvc_event_streaming(struct uvc_device *dev, __u8 *data, int len)
 			return;
 		uvc_trace(UVC_TRACE_STATUS, "Button (intf %u) %s len %d\n",
 			data[1], data[3] ? "pressed" : "released", len);
-		uvc_input_report_key(dev, BTN_0, data[3]);
+		uvc_input_report_key(dev, KEY_CAMERA, data[3]);
 	} else {
 		uvc_trace(UVC_TRACE_STATUS, "Stream %u error event %02x %02x "
 			"len %d.\n", data[1], data[2], data[3], len);
diff --git a/linux/drivers/media/video/uvc/uvc_v4l2.c b/linux/drivers/media/video/uvc/uvc_v4l2.c
index aa7949d95..bc13dbf05 100644
--- a/linux/drivers/media/video/uvc/uvc_v4l2.c
+++ b/linux/drivers/media/video/uvc/uvc_v4l2.c
@@ -46,6 +46,8 @@ static int uvc_v4l2_query_menu(struct uvc_video_device *video,
 	struct uvc_menu_info *menu_info;
 	struct uvc_control_mapping *mapping;
 	struct uvc_control *ctrl;
+	u32 index = query_menu->index;
+	u32 id = query_menu->id;
 
 	ctrl = uvc_find_control(video, query_menu->id, &mapping);
 	if (ctrl == NULL || mapping->v4l2_type != V4L2_CTRL_TYPE_MENU)
@@ -54,6 +56,10 @@ static int uvc_v4l2_query_menu(struct uvc_video_device *video,
 	if (query_menu->index >= mapping->menu_count)
 		return -EINVAL;
 
+	memset(query_menu, 0, sizeof(*query_menu));
+	query_menu->id = id;
+	query_menu->index = index;
+
 	menu_info = &mapping->menu_info[query_menu->index];
 	strlcpy(query_menu->name, menu_info->name, sizeof query_menu->name);
 	return 0;
@@ -654,7 +660,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 
 	case VIDIOC_S_INPUT:
 	{
-		u8 input = *(u32 *)arg + 1;
+		u32 input = *(u32 *)arg + 1;
 
 		if ((ret = uvc_acquire_privileges(handle)) < 0)
 			return ret;
@@ -666,7 +672,7 @@ static long uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg)
 			break;
 		}
 
-		if (input > video->selector->selector.bNrInPins)
+		if (input == 0 || input > video->selector->selector.bNrInPins)
 			return -EINVAL;
 
 		return uvc_query_ctrl(video->dev, SET_CUR, video->selector->id,
diff --git a/linux/drivers/media/video/uvc/uvc_video.c b/linux/drivers/media/video/uvc/uvc_video.c
index 82a9999b6..c5df33de9 100644
--- a/linux/drivers/media/video/uvc/uvc_video.c
+++ b/linux/drivers/media/video/uvc/uvc_video.c
@@ -746,7 +746,7 @@ static int uvc_alloc_urb_buffers(struct uvc_video_device *video,
 
 	/* Buffers are already allocated, bail out. */
 	if (video->urb_size)
-		return 0;
+		return video->urb_size / psize;
 
 	/* Compute the number of packets. Bulk endpoints might transfer UVC
 	 * payloads accross multiple URBs.