Here is the output when I type "cat /proc/asound/devices" 0: [ 0] : control 1: : sequencer 16: [ 0- 0]: digital audio playback 20: [ 0- 4]: digital audio playback 24: [ 0- 0]: digital audio capture 25: [ 0- 1]: digital audio capture 26: [ 0- 2]: digital audio capture 27: [ 0- 3]: digital audio capture 33: : timer
