[alsa-devel] Implementing sub-stream multiplexing in DAI

Ughreja, Rakesh A rakesh.a.ughreja at intel.com
Mon Oct 19 12:11:12 CEST 2015


Hi Mark,

In order to implement sub-stream multiplexing as a part of single BE DAI I 
have following observations.

1. All BE DAI ops gets called only once even if two different FE DAIs are 
connected to a BE DAI.
2. BE DAI ops are always called with sub-stream 0.

are these expected ?

What is the best way to allow calling of BE DAI ops with different 
sub-stream ID so that I can do link configuration based on sub-stream 
parameters ? can you give some pointers ?

Regards,
Rakesh



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