[alsa-devel] Multiple channels mapping

[Patrick Lai]

Hi,

The DSP I am working on supports channel assignments similar to ALSA
route plug-in described in this link http://drona.csa.iisc.ernet.in
/~uday/alsamch.shtml.
I am currently looking a way to pass channel/speaker mapping
information of PCM stream( i.c channel 0 -> Front Left speaker, channel
1 -> Front Right speaker) to ALSA driver. I looked at latest kernel
tree and don't think there is already provision for my purpose. Can
anyone confirm? If I were to improvise a way to pass channel/speaker
mapping information, should I follow the same approach similar to how
bits per sample and other hardware parameter is passed?

Thanks
Patrick

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