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333c8b9778
kernel-ark/include/media
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Laurent Pinchart 333c8b9778 [media] v4l: v4l2_subdev userspace format API 
Add a userspace API to get, set and enumerate the media format on a
subdev pad.

The format at the output of a subdev usually depends on the format at
its input(s). The try format operation is thus not suitable for probing
format at individual pads, as it can't modify the device state and thus
can't remember the format tried at the input to compute the output
format.

To fix the problem, pass an extra argument to the get/set format
operations to select the 'try' or 'active' format.

The try format is used when probing the subdev. Setting the try format
must not change the device configuration but can store data for later
reuse. Data storage is provided at the file-handle level so applications
probing the subdev concurently won't interfere with each other.

The active format is used when configuring the subdev. It's identical to
the format handled by the usual get/set operations.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2011-03-22 04:53:31 -03:00
..
davinci media: comment typo fix diable -> disable. 2011-01-03 16:03:38 +01:00
adv7343.h
ak881x.h
bt819.h [media] bt819: the ioctls in the header are internal to the kernel 2010-12-29 08:17:19 -02:00
cs53l32a.h
cs5345.h
cx2341x.h [media] v4l2-ctrls: use const char * const * for the menu arrays 2010-12-30 08:02:14 -02:00
cx25840.h V4L/DVB: cx25840/ivtv: replace ugly priv control with s_config 2010-08-08 23:43:05 -03:00
i2c-addr.h
ir-kbd-i2c.h [media] rc: Rename remote controller type to rc_type instead of ir_type 2010-12-29 08:16:50 -02:00
lirc_dev.h [media] lirc_dev: add some __user annotations 2010-12-29 08:16:55 -02:00
lirc.h V4L/DVB: IR: extend interfaces to support more device settings 2010-08-08 23:43:00 -03:00
m52790.h
media-device.h [media] media: Links setup 2011-03-22 04:53:16 -03:00
media-devnode.h [media] media: Media device node support 2011-03-22 04:52:22 -03:00
media-entity.h [media] media: Pipelines and media streams 2011-03-22 04:53:17 -03:00
msp3400.h
mt9t112.h
mt9v011.h [media] v4l2-subdev: remove core.s_config and v4l2_i2c_new_subdev_cfg() 2011-01-19 11:45:30 -02:00
noon010pc30.h [media] Add v4l2 subdev driver for NOON010PC30L image sensor 2011-03-21 20:31:40 -03:00
omap1_camera.h [media] SoC Camera: add driver for OMAP1 camera interface 2010-10-21 07:55:37 -02:00
ov772x.h
pwc-ioctl.h
radio-si4713.h
rc-core.h [media] rc: fix up and genericize some time unit conversions 2011-01-19 11:45:52 -02:00
rc-map.h [media] technisat-usb2: added driver for Technisat's USB2.0 DVB-S/S2 receiver 2011-03-21 20:31:33 -03:00
rj54n1cb0c.h
s5p_fimc.h [media] s5p-fimc: Add control of the external sensor clock 2011-03-21 20:31:39 -03:00
saa6588.h [media] saa6588: rename rds.h to saa6588.h 2010-12-29 08:17:18 -02:00
saa6752hs.h
saa7115.h
saa7127.h
saa7146_vv.h
saa7146.h [media] saa7146: Convert from .ioctl to .unlocked_ioctl 2011-01-19 11:28:10 -02:00
sh_mobile_ceu.h V4L/DVB: V4L2: sh_mobile_camera_ceu: add support for CSI2 2010-08-02 16:43:40 -03:00
sh_mobile_csi2.h V4L/DVB: V4L2: soc-camera: add a MIPI CSI-2 driver for SH-Mobile platforms 2010-08-02 16:43:39 -03:00
sh_vou.h [media] sh_vou: Don't use module names to load I2C modules 2010-10-22 21:53:33 -02:00
si4713.h [media] radio-si4713: Add regulator framework support 2010-12-29 08:16:35 -02:00
soc_camera_platform.h
soc_camera.h [media] V4L: soc-camera: add helper functions for videobuf queue handling 2011-03-21 20:32:15 -03:00
soc_mediabus.h [media] v4l: Move the media/v4l2-mediabus.h header to include/linux 2011-03-22 04:53:21 -03:00
sr030pc30.h [media] Add driver for Siliconfile SR030PC30 VGA camera 2010-10-21 07:55:49 -02:00
timb_radio.h [media] media: Add timberdale video-in driver 2010-12-29 08:16:46 -02:00
timb_video.h [media] media: Add timberdale video-in driver 2010-12-29 08:16:46 -02:00
tuner-types.h
tuner.h [media] tuner: Remove remaining usages of T_DIGITAL_TV 2011-03-21 20:32:04 -03:00
tvaudio.h
tveeprom.h
tvp514x.h
tvp5150.h
tvp7002.h
tw9910.h
upd64031a.h
upd64083.h
v4l2-chip-ident.h [media] V4L: Initial submit of OV9740 driver 2011-03-21 20:32:16 -03:00
v4l2-common.h [media] v4l2-subdev: remove core.s_config and v4l2_i2c_new_subdev_cfg() 2011-01-19 11:45:30 -02:00
v4l2-ctrls.h [media] v4l: Include linux/videodev2.h in media/v4l2-ctrls.h 2011-01-19 11:52:09 -02:00
v4l2-dev.h [media] v4l: Make video_device inherit from media_entity 2011-03-22 04:53:19 -03:00
v4l2-device.h [media] v4l: Add a media_device pointer to the v4l2_device structure 2011-03-22 04:53:18 -03:00
v4l2-event.h
v4l2-fh.h
v4l2-int-device.h
v4l2-ioctl.h [media] v4l: Add multi-planar ioctl handling code 2011-03-21 20:31:33 -03:00
v4l2-mediabus.h [media] v4l: Move the media/v4l2-mediabus.h header to include/linux 2011-03-22 04:53:21 -03:00
v4l2-mem2mem.h [media] v4l: mem2mem: port to videobuf2 2011-03-21 20:31:35 -03:00
v4l2-subdev.h [media] v4l: v4l2_subdev userspace format API 2011-03-22 04:53:31 -03:00
videobuf2-core.h [media] v4l: videobuf2: Typo fix 2011-03-21 20:32:41 -03:00
videobuf2-dma-contig.h [media] v4l: videobuf2: add DMA coherent allocator 2011-03-21 20:31:34 -03:00
videobuf2-dma-sg.h [media] v4l: videobuf2: add DMA scatter/gather allocator 2011-03-21 20:31:34 -03:00
videobuf2-memops.h [media] v4l: videobuf2: add generic memory handling routines 2011-03-21 20:31:34 -03:00
videobuf2-vmalloc.h [media] v4l: videobuf2: add vmalloc allocator 2011-03-21 20:31:34 -03:00
videobuf-core.h [media] V4L: remove V4L1 compatibility mode 2010-12-29 08:17:07 -02:00
videobuf-dma-contig.h V4L/DVB: videobuf: add ext_lock argument to the queue init functions 2010-10-21 01:06:14 -02:00
videobuf-dma-sg.h V4L/DVB: videobuf: add ext_lock argument to the queue init functions 2010-10-21 01:06:14 -02:00
videobuf-dvb.h
videobuf-vmalloc.h V4L/DVB: videobuf: add ext_lock argument to the queue init functions 2010-10-21 01:06:14 -02:00
wm8775.h [media] Add proper audio support for Nova-S Plus with wm8775 ADC 2011-03-21 20:32:19 -03:00