Hi Laurent,
The fix was partially applied in "[PATCHv10 03/26] v4l: vb2: add support for
shared buffer (dma_buf)".
The data_offset is set to 0 for DMABUF capture/output for single-planar API.
We should define the meaning of data_offset in case of USERPTR and MMAP buffers.
For output device it is pretty intuitive.
For DMABUF capture devices data_offset maybe used to inform a driver to
capture the image at some offset inside the DMABUF buffer.
BTW. Should {} be added after "if (V4L2_TYPE_IS_OUTPUT(b->type))"
to avoid 'interesting' behavior? :)
Regards,
Tomasz Stanislawski
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