Hello Justin,
> OK - True v4l compatibility requires the driver to support the
> REQ_CONTIG_MAP flag to REQBUFS. When your driver receives a REQBUF
> request with this flag set, it should allocate the buffers in "virtual"
> contiguous memory, and return the requestbuffers struct with the flag
> still set.
I just noticed that this is topic is discussed
in the driver writers guide... 8-/
Perhaps I should update my local copies more frequently.
Sorry for spamming the list with this.
> Alternatively, simply return requestbuffers with the REQ_CONTIG_MAP flag
> cleared. This will tell the compatibility layer that your driver cannot
> do contiguous buffers, it will then tell the v4l app that there is only
> 1 buffer available.
Anyway: many thanks for your explanations!
> -justin
CU
Michael.
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