Hi

Le vendredi 8 juillet 2011 16:19:22, Lambrecht J?rgen a ?crit :

quoted

indeed, doesn't work at all. I know it used to work on 2.6.34.
We also have a fsl linux 2.6.22 were it works.
I must say: when i use aplay to play a mono file, then there is no
error, it just never ends, and no sound also.
For a stereo file, it gives the error.
Mark also that when I use madplay (v0.15.2) (or mp3play) to play a mono
or stereo mp3, it allocates 3 DMA channels, but only frees one after the
error.

Did you made any progress on this ?

I have a working sound support for the mx31moboard boards available here:
http://github.com/retornaz/linux/commits/moboard-sound

It's basically Sascha mc13783 codec driver (from his git tree) rebased on 3.2 
and some mx31moboad specific code.

I can playback & record sound on our board (2 channels at 16Khz) with the sdma.

Sascha, do you have any plan to upstream the mc13783 codec driver ? 

Thanks,

Philippe