[RFC 0/2] Add V4L2_BUF_TYPE_META_OUTPUT buffer type

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The V4L2_BUF_TYPE_META_OUTPUT buffer type complements the metadata buffer
types support for OUTPUT buffers, capture being already supported. This is
intended for similar cases than V4L2_BUF_TYPE_META_CAPTURE but for output
buffers, e.g. device parameters that may be complex and highly
hierarchical data structure. Statistics are a current use case for
metadata capture buffers.

There's a warning related to references from make htmldocs; I'll fix that
in v2 / non-RFC version.

Sakari Ailus (2):
  v4l: Add support for V4L2_BUF_TYPE_META_OUTPUT
  docs-rst: v4l: Document V4L2_BUF_TYPE_META_OUTPUT interface

 Documentation/media/uapi/v4l/buffer.rst          |  3 +++
 Documentation/media/uapi/v4l/dev-meta.rst        | 32 ++++++++++++++----------
 Documentation/media/uapi/v4l/vidioc-querycap.rst |  3 +++
 drivers/media/v4l2-core/v4l2-compat-ioctl32.c    |  2 ++
 drivers/media/v4l2-core/v4l2-ioctl.c             | 25 ++++++++++++++++++
 drivers/media/v4l2-core/videobuf2-v4l2.c         |  1 +
 include/media/v4l2-ioctl.h                       | 17 +++++++++++++
 include/uapi/linux/videodev2.h                   |  2 ++
 8 files changed, 72 insertions(+), 13 deletions(-)

-- 
2.7.4




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