graeme@Linux1 ~ $ amixer -c 0 controls
numid=32,iface=CARD,name=‘Front Headphone Jack’
numid=34,iface=CARD,name=‘Front Mic Jack’
numid=35,iface=CARD,name=‘Line Jack’
numid=31,iface=CARD,name=‘Line Out Jack’
numid=33,iface=CARD,name=‘Rear Mic Jack’
numid=30,iface=MIXER,name=‘Master Playback Switch’
numid=29,iface=MIXER,name=‘Master Playback Volume’
numid=11,iface=MIXER,name=‘Headphone Playback Switch’
numid=10,iface=MIXER,name=‘Headphone Playback Volume’
numid=36,iface=MIXER,name=‘PCM Playback Volume’
numid=20,iface=MIXER,name=‘Front Mic Boost Volume’
numid=15,iface=MIXER,name=‘Front Mic Playback Switch’
numid=14,iface=MIXER,name=‘Front Mic Playback Volume’
numid=3,iface=MIXER,name=‘Front Playback Switch’
numid=2,iface=MIXER,name=‘Front Playback Volume’
numid=5,iface=MIXER,name=‘Surround Playback Switch’
numid=4,iface=MIXER,name=‘Surround Playback Volume’
numid=8,iface=MIXER,name=‘Center Playback Switch’
numid=6,iface=MIXER,name=‘Center Playback Volume’
numid=9,iface=MIXER,name=‘LFE Playback Switch’
numid=7,iface=MIXER,name=‘LFE Playback Volume’
numid=17,iface=MIXER,name=‘Line Playback Switch’
numid=16,iface=MIXER,name=‘Line Playback Volume’
numid=21,iface=MIXER,name=‘Capture Switch’
numid=22,iface=MIXER,name=‘Capture Switch’,index=1
numid=23,iface=MIXER,name=‘Capture Volume’
numid=24,iface=MIXER,name=‘Capture Volume’,index=1
numid=18,iface=MIXER,name=‘Auto-Mute Mode’
numid=28,iface=MIXER,name=‘Beep Playback Switch’
numid=27,iface=MIXER,name=‘Beep Playback Volume’
numid=1,iface=MIXER,name=‘Channel Mode’
numid=37,iface=MIXER,name=‘Digital Capture Volume’
numid=25,iface=MIXER,name=‘Input Source’
numid=26,iface=MIXER,name=‘Input Source’,index=1
numid=19,iface=MIXER,name=‘Rear Mic Boost Volume’
numid=13,iface=MIXER,name=‘Rear Mic Playback Switch’
numid=12,iface=MIXER,name=‘Rear Mic Playback Volume’
graeme@Linux1 ~ $