linux/drivers/media/v4l2-core
Hans Verkuil 6446ec6cbf media: v4l2-subdev: add VIDIOC_SUBDEV_QUERYCAP ioctl
While normal video/radio/vbi/swradio nodes have a proper QUERYCAP ioctl
that apps can call to determine that it is indeed a V4L2 device, there
is currently no equivalent for v4l-subdev nodes. Adding this ioctl will
solve that, and it will allow utilities like v4l2-compliance to be used
with these devices as well.

SUBDEV_QUERYCAP currently returns the version and capabilities of the
subdevice. Define a capability flag to report if the subdevice is
registered in read-only mode.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-05-12 17:05:31 +02:00
..
Kconfig media: v4l2-core: Add helpers to build the H264 P/B0/B1 reflists 2020-04-21 13:46:40 +02:00
Makefile media: v4l2-core: Add helpers to build the H264 P/B0/B1 reflists 2020-04-21 13:46:40 +02:00
tuner-core.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
v4l2-async.c media: v4l2-async: Safely clean up an uninitialised notifier 2019-07-25 11:00:06 -04:00
v4l2-clk.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
v4l2-common.c media: v4l2-common: Add BGR666 to v4l2_format_info 2020-04-14 11:45:37 +02:00
v4l2-compat-ioctl32.c media: v4l2-core: fix compat v4l2_buffer handling for time64 ABI 2020-01-03 15:53:46 +01:00
v4l2-ctrls.c media: v4l2-ctrls: add __v4l2_ctrl_s_ctrl_compound() 2020-04-21 17:01:07 +02:00
v4l2-dev.c media: v4l2-dev/ioctl: Add V4L2_CAP_IO_MC 2020-05-06 12:08:25 +02:00
v4l2-device.c media: v4l2-dev: Add v4l2_device_register_ro_subdev_node() 2020-05-12 17:04:07 +02:00
v4l2-dv-timings.c media: v4l2-dv-timings: Use DIV_ROUND_CLOSEST directly to make it readable 2019-11-05 08:49:22 -03:00
v4l2-event.c media: v4l2-core: fix VIDIOC_DQEVENT for time64 ABI 2020-01-03 15:47:57 +01:00
v4l2-fh.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
v4l2-flash-led-class.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
v4l2-fwnode.c media: v4l2-fwnode: add initial connector parsing support 2020-03-12 16:34:16 +01:00
v4l2-h264.c media: v4l2-core: Add helpers to build the H264 P/B0/B1 reflists 2020-04-21 13:46:40 +02:00
v4l2-i2c.c media: v4l2-core: v4l2-i2c: convert to new API with ERRPTR 2020-02-24 15:21:52 +01:00
v4l2-ioctl.c media: v4l2: Extend VIDIOC_ENUM_FMT to support MC-centric devices 2020-05-06 12:09:04 +02:00
v4l2-jpeg.c media: add v4l2 JPEG helpers 2020-04-14 11:47:47 +02:00
v4l2-mc.c media: Split v4l2_pipeline_pm_use into v4l2_pipeline_pm_{get, put} 2020-03-02 15:11:40 +01:00
v4l2-mem2mem.c media: v4l2-mem2mem: return CAPTURE buffer first 2020-04-14 11:21:49 +02:00
v4l2-spi.c v4l2-core: fix coding style for the two new c files 2019-08-26 11:01:25 -03:00
v4l2-subdev.c media: v4l2-subdev: add VIDIOC_SUBDEV_QUERYCAP ioctl 2020-05-12 17:05:31 +02:00
v4l2-trace.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
videobuf-core.c media: v4l2: abstract timeval handling in v4l2_buffer 2020-01-03 15:43:35 +01:00
videobuf-dma-contig.c media/v4l2-core: untag user pointers in videobuf_dma_contig_user_get 2019-09-25 17:51:41 -07:00
videobuf-dma-sg.c mm, tree-wide: rename put_user_page*() to unpin_user_page*() 2020-01-31 10:30:38 -08:00
videobuf-vmalloc.c media updates for v5.3-rc1 2019-07-09 09:47:22 -07:00