/proc/asound/devices /proc/asound/oss/devices /proc/asound/p

cat /proc/asound/devices
  1:        : sequencer
  2: [ 0- 6]: digital audio playback
  3: [ 0- 6]: digital audio capture
  4: [ 0- 1]: digital audio playback
  5: [ 0- 0]: digital audio playback
  6: [ 0- 0]: digital audio capture
  7: [ 0- 1]: hardware dependent
  8: [ 0- 0]: hardware dependent
  9: [ 0]   : control
 33:        : timer

cat /proc/asound/oss/devices
  0: [0- 0]: mixer
  1:       : sequencer
  3: [0- 0]: digital audio
  4: [0- 0]: digital audio
  8:       : sequencer
 12: [0- 1]: digital audio

cat /proc/asound/pcm
00-00: ALC660-VD Analog : ALC660-VD Analog : playback 1 : capture 1
00-01: ALC660-VD Digital : ALC660-VD Digital : playback 1
00-06: Si3054 Modem : Si3054 Modem : playback 1 : capture 1

cat /proc/asound/timers
G0: system timer : 1000.000us (10000000 ticks)
P0-0-0: PCM playback 0-0-0 : SLAVE
P0-0-1: PCM capture 0-0-1 : SLAVE
P0-1-0: PCM playback 0-1-0 : SLAVE
P0-6-0: PCM playback 0-6-0 : SLAVE
P0-6-1: PCM capture 0-6-1 : SLAVE

cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version 1.0.23.