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media: v4l2: Add REMOVE_BUFS ioctl

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VIDIOC_REMOVE_BUFS ioctl allows to remove buffers from a queue.
The number of buffers to remove in given by count field of
struct v4l2_remove_buffers and the range start at the index
specified in the same structure.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
[hverkuil: vidioc-remove-bufs.rst: mention no bufs are freed on error]
This commit is contained in:
Benjamin Gaignard 2024-03-14 16:32:24 +01:00 • committed by Hans Verkuil
commit a3293a8538
11 changed files with 211 additions and 1 deletions
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