PDAUDIOCF_REG_AK_IFR
pdacf_reg_write(chip, PDAUDIOCF_REG_AK_IFR, (u16)reg << 8);
res = (unsigned char)pdacf_reg_read(chip, PDAUDIOCF_REG_AK_IFR);
outw((u16)reg << 8 | val | (1<<13), chip->port + PDAUDIOCF_REG_AK_IFR);
inw(chip->port + PDAUDIOCF_REG_AK_IFR));