numid=2,iface=MIXER,name='Master Playback Switch'
  ; type=BOOLEAN,access=rw------,values=2
  : values=off,off
numid=1,iface=MIXER,name='Master Playback Volume'
  ; type=INTEGER,access=rw---R--,values=2,min=0,max=87,step=0
  : values=0,0
  | dBscale-min=-65.25dB,step=0.75dB,mute=0
