diff options
| -rw-r--r-- | include/media/videobuf2-core.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index 108fa16..128b15a 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -36,6 +36,8 @@ struct vb2_threadio_data; * no other users of this buffer are present); the buf_priv * argument is the allocator private per-buffer structure * previously returned from the alloc callback. + * @get_dmabuf: acquire userspace memory for a hardware operation; used for + * DMABUF memory types. * @get_userptr: acquire userspace memory for a hardware operation; used for * USERPTR memory types; vaddr is the address passed to the * videobuf layer when queuing a video buffer of USERPTR type; @@ -118,7 +120,7 @@ struct vb2_mem_ops { * @dbuf_mapped: flag to show whether dbuf is mapped or not * @bytesused: number of bytes occupied by data in the plane (payload) * @length: size of this plane (NOT the payload) in bytes - * @mem_offset: when memory in the associated struct vb2_buffer is + * @offset: when memory in the associated struct vb2_buffer is * VB2_MEMORY_MMAP, equals the offset from the start of * the device memory for this plane (or is a "cookie" that * should be passed to mmap() called on the video node) @@ -126,6 +128,8 @@ struct vb2_mem_ops { * pointing to this plane * @fd: when memory is VB2_MEMORY_DMABUF, a userspace file * descriptor associated with this plane + * @m: Union with memtype-specific data (@offset, @userptr or + * @fd). * @data_offset: offset in the plane to the start of data; usually 0, * unless there is a header in front of the data * Should contain enough information to be able to cover all the fields |