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path: root/drivers/media/video
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2008-07-20V4L/DVB (8374): gspca: No conflict of 0c45:6011 with the sn9c102 driver.Hans de Goede2-2/+2
The sn9c102 driver claims to support usb-ID 0x0c45:0x6011, which is a sn9c102 with ov6650 sensor, but the sn9c102 driver does not support the ov6650 sensor (tested). Also the sn9c102 driver claims to support usb-ID 0x0c45:0x603f, which is a sn9c102 with CISVF10 sensor, but the sn9c102 driver does not support the CISVF10 sensor (not tested). Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8373): gspca: Hue, saturation and contrast controls added for ↵Hans de Goede1-2/+175
sn9c10x ovxxxx. (does not work with ov6650) Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8372): gspca: Small ov6650 fixes.Hans de Goede1-5/+14
1) Don't change the red and blue pre-gain's from their defaults 2) Actually make the powerline freq ctrl available to userspace Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8371): gspca: Webcam 08ca:2050 added.Jean-Francois Moine1-0/+2
Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8370): gspca: Webcam 0461:0821 added.Jean-Francois Moine2-4/+12
Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8369): gspca: Bad initialization of sn9c102 ov7630.Jean-Francois Moine2-3/+3
Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8367): gspca: Light frequency filter / exposure / clean-up for ↵Andoni Zubimendi1-22/+19
sn9c103 ov7630. Signed-off-by: Andoni Zubimendi <andoni.zubimendi@gmail.com> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8366): gspca: Better code for ov6650 and ov7630.Hans de Goede1-57/+34
sonixb: Common code between ov6650 and ov7630. Fix brightness oscillation with ov6650 sensor. Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8364): gspca: Support of powerline frequency for ov6650.Hans de Goede1-7/+93
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8363): gspca: Bad image size with spca501.Hans de Goede1-3/+3
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8362): gspca: Bad offset of the brightness sum in sn9c103 packets.Hans de Goede1-7/+19
Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8361): gspca: Bad check of i2c write to sn9c10x.Andoni Zubimendi1-1/+4
Signed-off-by: Andoni Zubimendi <andoni.zubimendi@gmail.com> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8360): gspca: Bad initialization of sn9c103 - ov7630.Andoni Zubimendi1-12/+50
Signed-off-by: Andoni Zubimendi <andoni.zubimendi@gmail.com> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8359): gspca: Adds register aliases for zc03xx registersMauro Carvalho Chehab2-4074/+4354
Thanks to http://zc0302.sourceforge.net/zc0302.php, we have some hints about what each zc3xx register means. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
2008-07-20V4L/DVB (8358): gspca: Better initialization of sn9c120 - ov7660.Jean-Francois Moine1-40/+85
Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8357): gspca: Perfect exposure for sn9c10x, sensor ov6650.Hans de Goede1-11/+43
Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8356): gspca: 352x288 mode fix and source clean-up for Sonix bridges.Hans de Goede3-94/+63
sonixb: Bad initialization of sensor for 352x288 mode. (from Hans de Goede) sonixj: Clean-up source. Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8354): gspca: Better gain for bridge sn9c10x - sensor ov6650.Hans de Goede1-17/+13
sonixb: Better gain for ov6650. Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8353): gspca: 640x480 for bridge sn9c103 / sensor ov7630.Andoni Zubimendi1-4/+16
sonixb: 640x480 mode for sn9c103 - ov7630. Signed-off-by: Andoni Zubimendi <andoni.zubimendi@gmail.com> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8352): gspca: Buffers for USB exchanges cannot be in the stack.Jean-Francois Moine22-1795/+1700
gspca: Protect dq_callback() against simultaneous USB exchanges. Temporary buffer for USB exchanges added in the device struct. (all) Use a temporary buffer for all USB exchanges. Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8350): gspca: Conform to v4l2 spec and mutex unlock fix.Jean-Francois Moine1-72/+74
gspca: Empty the application queues on streamoff ioctl. streamon/off and qbuf ioctls may be done by any application. Don't handle MJPEG pixel format as JPEG. (thanks to Hans de Goede) Authorize reqbufs ioctl when streaming. Bad mutex unlock in poll() when streaming problem. (thanks to Mauro Carvalho Chehab) Don't handle 'webcam disconnected' in stream off. Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8349): gspca: SN9C103 OV7630 fixes in sonixb.Andoni Zubimendi1-36/+40
Signed-off-by: Andoni Zubimendi <andoni.zubimendi@gmail.com> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8348): gspca: Add auto gain/exposure to sonixb and tas5110 / ov6650 ↵Hans de Goede4-109/+350
sensors. sonixb: Do auto gain for tas5110 / ov6650 sensors. pac207: Move the auto_gain function to gspca. gspca: New function gspca_auto_gain_n_exposure(). Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl> Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8346): gspca: Bad pixel format of bridge VC0321.Jean-Francois Moine1-28/+15
vc032x: Light frequency was not initialized. Change the pixel format of bridge VC0321 to V4L2_PIX_FMT_YUV420 ('YU12'). Set a bridge to all webcams. Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8343): soc_camera_platform: Add SoC Camera Platform driverMagnus Damm3-0/+205
This patch adds a simple platform camera device. Useful for testing cameras with SoC camera host drivers. Only one single pixel format and resolution combination is supported. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8342): sh_mobile_ceu_camera: Add SuperH Mobile CEU driver V3Magnus Damm3-0/+666
This is V3 of the SuperH Mobile CEU soc_camera driver. The CEU hardware block is configured in a transparent data fetch mode, frames are captured from the attached camera and written to physically contiguous memory buffers provided by the newly added videobuf-dma-contig queue. Tested on sh7722 and sh7723 processors. Changes since V2: - remove SUPERH Kconfig dependency - move sh_mobile_ceu.h to include/media - add board callback support with enable_camera()/disable_camera() - add support for declare_coherent_memory - rework video memory limit - more verbose error messages Changes since V1: - fixed the CEU driver to work with the newly updated patches Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8341): videobuf: Add physically contiguous queue code V3Magnus Damm3-0/+423
This is V3 of the physically contiguous videobuf queues patch. Useful for hardware such as the SuperH Mobile CEU which doesn't support scatter gatter bus mastering. Since it may be difficult to allocate large chunks of physically contiguous memory after some uptime due to fragmentation, this code allocates memory using dma_alloc_coherent(). Architectures supporting dma_declare_coherent_memory() can easily avoid fragmentation issues by using dma_declare_coherent_memory() to force dma_alloc_coherent() to allocate from a certain pre-allocated memory area. Changes since V2 - use dma_handle for physical address - use "scatter gather" instead of "scatter gatter" Changes since V1: - use dev_err() instead of pr_err() - remember size in struct videobuf_dma_contig_memory - keep struct videobuf_dma_contig_memory in .c file - let videobuf_to_dma_contig() return dma_addr_t - implement __videobuf_sync() - return statements, white space and other minor fixes Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8340): videobuf: Fix gather spellingMagnus Damm2-2/+2
Use "scatter gather" instead of "scatter gatter". Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8338): soc_camera: Move spinlocksMagnus Damm2-50/+6
This patch moves the spinlock handling from soc_camera.c to the actual camera host driver. The spinlock_alloc/free callbacks are replaced with code in init_videobuf(). So far all camera host drivers implement their own spinlock_alloc/free methods anyway, and videobuf_queue_core_init() BUGs on a NULL spinlock argument, so, new camera host drivers will not forget to provide a spinlock when initialising their videobuf queues. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8337): soc_camera: make videobuf independentPaulius Zaleckas3-9/+17
Makes SoC camera videobuf independent. Includes all necessary changes for PXA camera driver (currently the only driver using soc_camera in the mainline). These changes are important for the future soc_camera based drivers. Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt> Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8332): cx18: Suport external reset of the Z8F0811 IR controller on ↵Andy Walls5-0/+54
HVR-1600 for lirc cx18: added in cx18_ir_reset_gpio function for lirc_pvr150 like module. Also added the ability to reset the IR chip via ioctl like ivtv. This needs the mutex to protect gpio_dir and gpio_val in struct cx18 as gpio changes can come from a few different asynchronous sources now. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8331): cx18: Add locking for struct cx18 GPIO state variablesAndy Walls4-2/+17
cx18: Add locking for struct cx18 GPIO state variables in anticpation of adding IR microcontroller reset support for use by external IR modules. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8319): saa7134: Add support for analog only ASUSTeK P7131Hermann Pitton3-0/+45
saa7134: add a separate entry for the ASUSTeK P7131 analog only and do some eeprom detection to escape from the TVFM7135 with the same PCI subsystem on auto detection. Signed-off-by: Hermann Pitton <hermann-pitton@arcor.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8318): OV7670: don't reject unsupported settingsDaniel Drake1-6/+6
For VIDIOC_G_FMT/VIDIOC_TRY_FMT, the V4L2 API spec states: "Drivers should not return an error code unless the input is ambiguous" "Very simple, inflexible devices may even ignore all input and always return the default parameters." "When the requested buffer type is not supported drivers return an EINVAL error code." i.e. returning errors for unsupported fields is bad, and it's ok to unconditionally overwrite user-requested settings This patch makes ov7670 meet that behaviour, and brings it in line with other drivers e.g. stk-webcam. It also fixes compatibility with (unpatched) gstreamer. Signed-off-by: Daniel Drake <dsd@laptop.org> Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8317): Sensoray 2255 V4l driver checkpatch fixesDean Anderson1-26/+35
This patch fixes some coding style issues. It also fixes a NULL de-reference on driver unload. The permissions for the module parameters were changed to 0644. Signed-off-by: Dean Anderson <dean@sensoray.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8316): bt819: Fix a debug messageJean Delvare1-1/+1
Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8315): zr36067: Delete dead codeJean Delvare1-11/+0
This has been commented out for years, it's about time to get rid of it. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8257): uvcvideo: Fix possible AB-BA deadlock with videodev_lock and ↵Laurent Pinchart1-3/+6
open_mutex The uvcvideo driver's uvc_v4l2_open() method is called from videodev's video_open() function, which means it is called with the videodev_lock mutex held. uvc_v4l2_open() then takes uvc_driver.open_mutex to check dev->state and avoid racing against a device disconnect, which means that open_mutex must nest inside videodev_lock. However uvc_disconnect() takes the open_mutex around setting dev->state and also around putting its device reference. However, if uvc_disconnect() ends up dropping the last reference, it will call uvc_delete(), which calls into the videodev code to unregister its device, and this will end up taking videodev_lock. This opens a (unlikely in practice) window for an AB-BA deadlock and also causes a lockdep warning because of the lock misordering. Fortunately there is no apparent reason to hold open_mutex when doing kref_put() in uvc_disconnect(): if uvc_v4l2_open() runs before the state is set to UVC_DEV_DISCONNECTED, then it will take another reference to the device and kref_put() won't call uvc_delete; if uvc_v4l2_open() runs after the state is set, it will run before uvc_delete(), see the state, and return immediately -- uvc_delete() does uvc_unregister_video() (and hence video_unregister_device(), which is synchronized with videodev_lock) as its first thing, so there is no risk of use-after-free in uvc_v4l2_open(). Bug diagnosed based on a lockdep warning reported by Romano Giannetti <romano@dea.icai.upcomillas.es>. Signed-off-by: Roland Dreier <roland@digitalvampire.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8256): uvc/uvc_v4l2.c: suppress uninitialized var warningAndrew Morton1-1/+1
drivers/media/video/uvc/uvc_v4l2.c: In function `uvc_v4l2_mmap': drivers/media/video/uvc/uvc_v4l2.c:1035: warning: 'buffer' might be used uninitialized in this function Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8254): uvcvideo : Add support for Asus F9GS integrated webcamLaurent Pinchart1-0/+9
Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8253): gspca: fix warnings on x86_64Mauro Carvalho Chehab1-3/+3
/home/v4l/master/v4l/gspca.c: In function 'gspca_frame_add': /home/v4l/master/v4l/gspca.c:222: warning: format '%d' expects type 'int', but argument 2 has type 'long int' /home/v4l/master/v4l/gspca.c: In function 'dev_read': /home/v4l/master/v4l/gspca.c:1568: warning: format '%d' expects type 'int', but argument 2 has type 'size_t' /home/v4l/master/v4l/gspca.c:1618: warning: format '%d' expects type 'int', but argument 3 has type 'size_t' Acked-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8252): buf-dma-sg.c: avoid clearing memory twiceChristophe Jaillet1-4/+2
1) Remove a useless initialisation of 'i' 2) Avoid clearing the memory allocated twice (once in 'kcalloc', once in 'sg_init_table') 3) Remove a test that can never trigger. The function returns NULL in such a case, so we know that at this point 'pages[0]' != NULL Signed-off-by: Christophe Jaillet <jaillet.christophe@wanadoo.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8249): Fix pointer cast warnings in the ivtv framebuffer driverDavid Howells1-3/+4
Fix casts of pointers to integers of different sizes in the ivtv framebuffer driver. These were introduced in patch 38eb6ba5b8487d15b020fe391d324edd2b659b03. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8246): tvaudio: Stop I2C driver ID abuseJean Delvare1-13/+0
The tvaudio driver is using "official" I2C device IDs for internal purpose. There must be some historical reason behind this but anyway, it shouldn't do that. As the stored values are never used, the easiest way to fix the problem is simply to remove them altogether. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8245): ovcamchip: Delete stray I2C bus IDJean Delvare1-1/+0
I2C_HW_SMBUS_OVFX2 is referenced in ovcamchip_core.c, but no bus uses this driver ID, so we can remove the reference. As far as I can see, the Cypress FX2 webcam is handled by a different driver (dvb-usb). Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8244): saa7134: add support for AVerMedia M103Massimo Piccioni3-0/+36
The following patch updates saa7134 driver to add support for AVerMedia M103 MiniPCI DVB-T Hybrid card. Signed-off-by: Massimo Piccioni <alsa@piccio.org> [mchehab@infradead.org: fixed merge conflicts and a small codingstyle] Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8236): cx23885: add support for new revision of FusionHDTV7 Dual ↵Michael Krufky2-0/+16
Express The new revision of this board uses the same pci subsystem id as the first revision, but uses a S5H1411 demodulator instead of the S5H1409. In the case of the FusionHDTV7 Dual Express, if s5h1409_attach fails, try s5h1411_attach. Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8235): uvcvideo : Add support for Medion Akoya Mini E1210 ↵Laurent Pinchart1-0/+9
integrated webcam Signed-off-by: Tim Gardner <tim.gardner@canonical.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8234): uvcvideo: Make input device support optionalLaurent Pinchart2-2/+32
UVC devices can report button events. The uvcvideo driver depends on CONFIG_INPUT to report events to the input layer. This patch removes the hard dependency by introducing a new CONFIG_USB_VIDEO_CLASS_INPUT_EVDEV option. Signed-off-by: Laurent Pinchart <laurent.pinchart@skynet.be> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-20V4L/DVB (8232): gspca: Change the USERPTR mechanism.Jean-Francois Moine2-152/+52
main: Change the packet copy mechanism for userptr. Cannot do reqbufs ioctl when already done and count != 0. Accept count < frame size in read(). Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>