doc@AMD:~$ amixer controls
numid=18,iface=MIXER,name='PCM Playback Volume'
numid=8,iface=MIXER,name='Front Mic Playback Switch'
numid=7,iface=MIXER,name='Front Mic Playback Volume'
numid=2,iface=MIXER,name='Front Playback Switch'
numid=1,iface=MIXER,name='Front Playback Volume'
numid=6,iface=MIXER,name='Mic Playback Switch'
numid=5,iface=MIXER,name='Mic Playback Volume'
numid=10,iface=MIXER,name='Capture Switch'
numid=9,iface=MIXER,name='Capture Volume'
numid=12,iface=MIXER,name='IEC958 Playback Con Mask'
numid=13,iface=MIXER,name='IEC958 Playback Pro Mask'
numid=14,iface=MIXER,name='IEC958 Playback Default'
numid=15,iface=MIXER,name='IEC958 Playback Switch'
numid=17,iface=MIXER,name='Caller ID Switch'
numid=11,iface=MIXER,name='Input Source'
numid=16,iface=MIXER,name='Off-hook Switch'
numid=4,iface=MIXER,name='Speaker Playback Switch'
numid=3,iface=MIXER,name='Speaker Playback Volume'
doc@AMD:~$