[alsa-devel] Playback and capture synchronization

Hi,

I have a use case requiring playback and capture starting at the same time. Latency between starting of playback and capture streams need to be less than few PCM samples. Base on my understanding on ALSA which does not have the concept of grouping multiple streams, the best I can do is getting playback and capture to prepared state then trigger start two streams one after the other. Then, the latency would be the time for trigger start of first stream to complete. Is there a better way to deal with my use case from ALSA API standpoint?

Thanks Patrick

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