Symbol: PORT_HWVOL_MASTER
sys/dev/sound/pci/maestro.c
1688
event = AGG_RD(ess, PORT_HWVOL_MASTER, 1);
sys/dev/sound/pci/maestro.c
1689
AGG_WR(ess, PORT_HWVOL_MASTER, HWVOL_NOP, 1);