media: core: Report the maximum possible number of buffers for the queue
Use one of the struct v4l2_create_buffers reserved bytes to report
the maximum possible number of buffers for the queue.
V4l2 framework set V4L2_BUF_CAP_SUPPORTS_SET_MAX_BUFS flags in queue
capabilities so userland can know when the field is valid.
Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@collabora.com>
# Conflicts:
# drivers/media/common/videobuf2/videobuf2-v4l2.c
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- Documentation/userspace-api/media/v4l/vidioc-create-bufs.rst 6 additions, 2 deletionsDocumentation/userspace-api/media/v4l/vidioc-create-bufs.rst
- Documentation/userspace-api/media/v4l/vidioc-reqbufs.rst 1 addition, 0 deletionsDocumentation/userspace-api/media/v4l/vidioc-reqbufs.rst
- drivers/media/common/videobuf2/videobuf2-v4l2.c 2 additions, 0 deletionsdrivers/media/common/videobuf2/videobuf2-v4l2.c
- drivers/media/v4l2-core/v4l2-ioctl.c 2 additions, 2 deletionsdrivers/media/v4l2-core/v4l2-ioctl.c
- include/uapi/linux/videodev2.h 6 additions, 1 deletioninclude/uapi/linux/videodev2.h
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