I am using DM3730, the board looks like a EVM board, using kernel 'linux-omap-pm 2.6.38'.
Execute 'aplay -L', it prints:
default: CARD=omap3evm
omap3evm,
Default Audio Devices
null
Discard all samples (playback) or generate zero samples (capture)
But when I try to let it play a WAV file, there are always no audio output.
I tried a different kernel (2.6.32), with the same root file system and the same WAV file, it did work.
So, are there anyone could give me some suggestion about this?