17 Apr
2012
17 Apr
'12
1:03 a.m.
Hi Tomasz,
Thanks for the patch.
On Friday 13 April 2012 17:47:54 Tomasz Stanislawski wrote:
The DMABUF documentation says that the map_dma_buf callback should return scatterlist that is mapped into a caller's address space. In practice, almost none of existing implementations of DMABUF exporter does it. This patch breaks the DMABUF specification in order to allow exchange DMABUF buffers between other APIs like DRM.
Once again, this means that it's time to either fix the documentation or fix the non-compliant drivers.
Could you please read the mail I've sent on 27/03/2012 in the "Minutes from V4L2 update call" thread and reply there to avoid scattering the discussion ?
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Regards,
Laurent Pinchart