Hi, how do I access the sound device? I have inlcuded the ALSAlib. In my FS there's a /proc/asound directory. Inside there's a card0 folder. The hardware is identified as pm7tlv320. The question is: what is the name of the device? With the ALSAlib there comes a test program named pcm that should generate a sinus wave to the sound output. Here I have to add the device name e.g. ./pcm -Dhw:0,0. All devices I tried did not work.
(_snd_pcm_hw_open) Invalid value for card
Playback open error: No such file or directory
In my /dev folder there's no device that looks like sound.
Thanks in advance.