Hi folks, Here's a non-RFC version of the META_OUTPUT buffer type patches. 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. Yong: could you take these to your IPU3 ImgU patchset, please? As that would be the first user, the patches would be merged with the driver itself. since RFC: - Fix make htmldocs build. - Fix CAPTURE -> OUTPUT in buffer.rst. - Added " for specifying how the device processes images" in the documentation. 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 | 33 ++++++++++++++---------- Documentation/media/uapi/v4l/vidioc-querycap.rst | 3 +++ Documentation/media/videodev2.h.rst.exceptions | 2 ++ 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 ++ 9 files changed, 75 insertions(+), 13 deletions(-) -- 2.7.4
