[alsa-devel] Channel swapping issue on TI OMAP3/TWL4030

ylin at mail.com ylin at mail.com
Tue Feb 15 17:23:55 CET 2011

> I forgot to ask:
> what mode you are using the McBSP?
> Is it in element, or threshold mode?
> You can check/change the McBSP mode in:
> /sys/devices/platform/omap-mcbsp.2/dma_op_mode

It is in threshold mode, with max threshold 1023.  I will try other 

> > For playing, the left and right are the same data, we could not 
tell if
> > the channel switch happens to playback as well.
> I see. Is there a way for you to run your application to capture only,
> and from a separate app (aplay?) play a sample, which has audio only 
> one channel?

I can fill zero to one of the play channel in our app to test it.


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