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[media] Feature removal: using capture and output capabilities for m2m devices

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Identifying a memory-to-memory video device through an ORed output and
capture capability flags is not reliable. Schedule this for removal.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Sylwester Nawrocki 2012-07-26 09:30:50 -03:00 committed by Mauro Carvalho Chehab
parent f0476a83d6
commit a1367f1b26
1 changed files with 14 additions and 0 deletions
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14
Documentation/feature-removal-schedule.txt
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@ -576,3 +576,17 @@ Why: The regular V4L2 selections and the subdev selection API originally
any instabilities in the user space interface. After few cycles these any instabilities in the user space interface. After few cycles these
backward compatibility definitions will be removed. backward compatibility definitions will be removed.
Who: Sylwester Nawrocki <sylvester.nawrocki@gmail.com> Who: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
----------------------------
What: Using V4L2_CAP_VIDEO_CAPTURE and V4L2_CAP_VIDEO_OUTPUT flags
to indicate a V4L2 memory-to-memory device capability
When: 3.8
Why: New drivers should use new V4L2_CAP_VIDEO_M2M capability flag
to indicate a V4L2 video memory-to-memory (M2M) device and
applications can now identify a M2M video device by checking
for V4L2_CAP_VIDEO_M2M, with VIDIOC_QUERYCAP ioctl. Using ORed
V4L2_CAP_VIDEO_CAPTURE and V4L2_CAP_VIDEO_OUTPUT flags for M2M
devices is ambiguous and may lead, for example, to identifying
a M2M device as a video capture or output device.
Who: Sylwester Nawrocki <s.nawrocki@samsung.com>