SM502_AC97_CONTROL
VAC_READ(sc, SM502_AC97_CONTROL));
VAC_WRITE(sc, SM502_AC97_CONTROL,
VAC_WRITE(sc, SM502_AC97_CONTROL, SM502_AC97_ENABLE);
reg = VAC_READ(sc, SM502_AC97_CONTROL);
VAC_READ(sc, SM502_AC97_CONTROL),