litmus-rt-imx6.git/Documentation/DocBook/media/v4l/vidioc-querycap.xml, branch master

[media] DocBook: media: struct v4l2_capability card field is a UTF-8 string

2013-02-05T21:24:03+00:00

The struct v4l2_capability card field stores the device name. That name
can be hardcoded in drivers, or be retrieved directly from the device.
The later is very common with USB devices. As several devices already
report names that include non-ASCII characters, update the field
description to use UTF-8.

Signed-off-by: Laurent Pinchart 
Acked-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] DocBook: bus_info can no longer be empty

2012-09-26T12:32:08+00:00

During the 2012 Media Workshop it was decided that bus_info as returned
by VIDIOC_QUERYCAP can no longer be empty. It should be a unique identifier,
and empty strings are obviously not unique.

Signed-off-by: Hans Verkuil 
Reviewed-by: Sylwester Nawrocki 
Reviewed-by: Sakari Ailus 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L: Add capability flags for memory-to-memory devices

2012-07-30T22:31:53+00:00

This patch adds new V4L2_CAP_VIDEO_M2M and V4L2_CAP_VIDEO_M2M_MPLANE
capability flags that are intended to be used for memory-to-memory (M2M)
devices, instead of ORed V4L2_CAP_VIDEO_CAPTURE and V4L2_CAP_VIDEO_OUTPUT.

V4L2_CAP_VIDEO_M2M flag is added at the drivers, CAPTURE and OUTPUT
capability flags are left untouched and will be removed in future,
after a transition period required for existing applications to be
adapted to check only for V4L2_CAP_VIDEO_M2M.

Signed-off-by: Sylwester Nawrocki 
Signed-off-by: Kyungmin Park 
Acked-by: Kamil Debski 
Acked-by: Andrzej Pietrasiewicz 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L2: Add per-device-node capabilities

2012-01-23T18:34:27+00:00

If V4L2_CAP_DEVICE_CAPS is set, then the new device_caps field is filled with
the capabilities of the opened device node.

The capabilities field traditionally contains the capabilities of the physical
device, being a superset of all capabilities available at the several device
nodes. E.g., if you open /dev/video0, then if it contains VBI caps then that means
that there is a corresponding vbi node as well. And the capabilities field of
both the video and vbi nodes should contain identical caps.

However, it would be very useful to also have a capabilities field that contains
just the caps for the currently open device, hence the new CAP bit and field.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] DocBook: Use the generic ioctl error codes for all V4L ioctl's

2011-07-27T20:53:35+00:00

Be sure that all VIDIOC_* ioctl are using the return error macro, and
aren't specifying generic error codes internally.

Acked-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] DocBook/v4l: Document the new system-wide version behavior

2011-07-27T20:53:16+00:00

Acked-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] DocBook: Move all media docbook stuff into its own directory

2011-07-27T20:52:05+00:00

This patch addresses several issues pointed by Randy Dunlap
 at changeset ece722c:

- In the generated index.html file, "media" is listed first, but it
  should be listed in alphabetical order, not first.

- The generated files are (hidden) in .tmpmedia/

- The link from the top-level index.html file to "media" is to
  media/index.html, but the file is actually in .tmpmedia/media/index.html

- Please build docs with and without using "O=builddir" and test that.

- Would it be possible for media to have its own Makefile instead of
  merging into this one?

Due to the way cleandocs target works, I had to rename the media DocBook
to media_api, otherwise cleandocs would remove the /media directory.

Thanks-to: Randy Dunlap 
Signed-off-by: Mauro Carvalho Chehab