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From: Mike Isely <isely@pobox.com>
Implement additional pvrusb2 device info table entries for a device
identifier and a device description. Export this information via the
driver's internal API. Make this information available via the sysfs
driver interface. Also propagate this information into the v4l2
capability structure. An app can now retrieve and report a
descriptive string about the particular type of hardware device it is
operating.
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
The pvrusb2 driver's sysfs implementation had long since implemented a
dummy hotplug function because at the time the kernel would oops
without at least the empty function being present. Today - after
numerous class interface changes in the kernel - this pvrusb2 change
had been dutifully carried forward but an inspection of the kernel
sources shows that it is no longer needed. So remove the dummy
function and its reference. This also solves a recurring backwards
compatibility issue in the pvrusb2 driver as the class interface has
been getting thrashed in the kernel.
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Original Description:
Author: Kay Sievers <kay.sievers@vrfy.org>
Date: Tue Aug 14 15:15:12 2007 +0200
Driver core: change add_uevent_var to use a struct
This changes the uevent buffer functions to use a struct instead of a
long list of parameters. It does no longer require the caller to do the
proper buffer termination and size accounting, which is currently wrong
in some places. It fixes a known bug where parts of the uevent
environment are overwritten because of wrong index calculations.
Many thanks to Mathieu Desnoyers for finding bugs and improving the
error handling.
CC: Mike Isely <isely@isely.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mike Isely <isely@pobox.com>
Earlier changes to move away from use of struct class_device
introduced breakage for kernels older than 2.6.19. This change at
least allows it to build again for 2.6.18. Still unclear about older
kernels, unfortunately :-(
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Trent Piepho <xyzzy@speakeasy.org>
The prototypes for the show and store methods of a device_attribute changed in
kernel 2.6.13, but the code in pvrusb2 was never updated. I guess the
DEBUGIFC stuff isn't used much....
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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From: Kay Sievers <kay.sievers@vrfy.org>
The currently used "struct class_device" will be removed from the
kernel. Here is a patch that converts all users in drivers/media/video/
to struct device.
Reviewed-by: Thierry Merle <thierry.merle@free.fr>
Reviewed-by: Mike Isely <isely@pobox.com>
Reviewed-by: Luca Risolia <luca.risolia@studio.unibo.it>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Due to several internal API changes on kernel, kernel backward
compatibility were lost. Basically, compat.h should be the last include
for it to work properly.
This patch basically reorders kernel headers to allow backward compat to
work fine.
Also:
Some includes were added after some non-include macros, on old drivers.
Better to keep all includes at the beginning of the files.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Tejun Heo <htejun@gmail.com>
[Mike Isely: This is the pvrusb2 affected part of a much larger patch
in the kernel from Tejun Heo]
sysfs is now completely out of driver/module lifetime game. After
deletion, a sysfs node doesn't access anything outside sysfs proper,
so there's no reason to hold onto the attribute owners. Note that
often the wrong modules were accounted for as owners leading to
accessing removed modules.
This patch kills now unnecessary attribute->owner. Note that with
this change, userland holding a sysfs node does not prevent the
backing module from being unloaded.
For more info regarding lifetime rule cleanup, please read the
following message.
http://article.gmane.org/gmane.linux.kernel/510293
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
The V4L2 API requires a unique bus_info string returned as part of the
v4l2_capability structure. These changes gather up the USB address
information, from the underlying device, into a string and report that
out through v4l2 and via sysfs (for completeness).
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Ahmed S. Darwish <darwish.07@gmail.com>
Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Use separate enum for get/store of minor number; we want pvr2_config
to go away eventually and since it really means something different,
don't use it here
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Pantelis Koukousoulas <pakt223@freemail.gr>
This is the first patch in preparation of the V4L2/IVTV radio interface.
It does away with the assumption of only one minor per device. It also
adds a file to show the radio minor as well. This can be useful for a
program like pvr-radio.c (when it grows up), since this way it can search
for the minor of the /dev/radioX device it opened and use the video minor
of the same driver instance to get to the actual stream.
The implementation looks kinda ugly. Feel free to improve (that is the
reason behind separate patches anyway).
--Pantelis
Signed-off-by: Pantelis Koukousoulas <pakt223@freemail.gr>
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Take note of which sysfs files / groups that the pvrusb2 successfully
creates and only delete those specific items when tearing things
down. (Previously we just blindly tore everything down every time.)
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Since kernel include autoconf.h via command line, those config.h inclusion
can be removed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Michael Krufky <mkrufky@linuxtv.org>
class_device_create_file is marked as __must_check, so its
return value must be checked.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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From: Michael Krufky <mkrufky@linuxtv.org>
If an error occurs during class_device_register, print an error message,
kfree(class_dev) and return.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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From: Mike Isely <isely@pobox.com>
Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mike Isely <isely@pobox.com>
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Michael Krufky <mkrufky@linuxtv.org>
Added necessary header file in order for kconfig build options to be
considered at compile time. Without this patch all options will always
be disabled, regardless of whether they are selected or not.
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Acked-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Rework controls internal architecture. Rework video standard
handling. This is a major change.
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Arrange things in pvrusb2 so that the sysfs-using component doesn't
have to be compiled in. Control this with new
CONFIG_VIDEO_PVRUSB2_SYSFS variable. This will allow the driver to
still be used even if sysfs has not been compiled into the kernel.
Also arrange things similarly in pvrusb2 for the debug interface,
which is something that normally should not need to be built but is
valuable for bug chasing. This is controlled now with
CONFIG_VIDEO_PVRUSB2_DEBUGIFC.
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
This problem was introduced by the previous change. It appears that
if you try to create to sysfs entries of the same name in one
directory, then sysfs gets very angry and causes a kernel oops when
you later try to tear down those nodes. By not allocating enough
space to hold the name, we were inadvertently causing a sysfs control
file name collision...
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Rework entire internal controls interface to eliminate the need for
visibly defined control IDs which must otherwise be translated by the
V4L2 public interface. As part of this work, internal structures
which mimiced various V4L2 structures (video standards, audio modes)
have been reworked to actually use the native structures. This
triggered a _significant_ rework for how video standards are dealt
with (and what is in place now should be much more flexible and
forgiving for various handling less-common video standards).
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Eliminate the need to track the number pvrusb2 CIDs at compile time
from within the pvrusb2 driver. This is part of a control structure
cleanup.
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Mike Isely <isely@pobox.com>
Signed-off-by: Mike Isely <isely@pobox.com>
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From: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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