BeagleBone mcasp0 ASoC driver

I want to use Beaglbones McASP 0 für ALSA soc too.
But i always get the message “no sonudcard …”
in /sys/kernel/debug/asoc/… i can find my dai, codec and platform, but no Sondcard ist regusterd.
What have i to do???
Please help.

I use Kernel 3.2.0 (TI SDK for the am335x-evm) and kernel 3.8.11 (buildroot).
In both kernels i cannot get asoc running :frowning: