Hey all,

I'm working on a project that has a TI TLV320AIC3256 codec hooked up to an OMAP 4 processor. My biggest issue right now is that I'm only getting one of the channels. E.g. if I run:

% tinycap test.wav -d 0 -r 48000 -b 16

Only one of the channels (left, in this case) has any data. The right channel is all 0s.

I'm using the tlv320aic325x.c driver that's publicly available from TI[1]. I've verified that the I2S data sent from the codec to the processor has data on both channels (i.e. I see I2S data on both the high and low phases of the frame sync).

I'm looking for any help figuring out where to start looking in the sound system to debug this. I'm not really familiar with how the I2S data makes its way from the hardware buffers to the PCM driver; any help there would be appreciated too!

Thanks - B

[1]: https://gitorious.org/ti-codecs/ti-codecs/source/721c6e957db39a9d2174cecd4ca...