WM_VOL_MUTE       680 sound/pci/ice1712/aureon.c #define WM_VOL_MUTE	0x8000
WM_VOL_MUTE        89 sound/pci/ice1712/phase.c #define WM_VOL_MUTE	0x8000
WM_VOL_MUTE       304 sound/pci/ice1712/prodigy_hifi.c #define WM_VOL_MUTE	0x8000