CH_GVSEL_PAN_VOL_CTRL_EC
outb(voice->Vol >> 2, TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC + 2));
TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC));
TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC + 3));
val = inl(TRID_REG(trident, CH_GVSEL_PAN_VOL_CTRL_EC));