AM7930_DREG_DR
bba_codec_dwrite(sc, AM7930_DREG_DR, val);
bba_codec_dwrite(sc, AM7930_DREG_DR, val);
bba_codec_dwrite(sc, AM7930_DREG_DR, val >> 8);
val = bba_codec_dread(sc, AM7930_DREG_DR);
val = bba_codec_dread(sc, AM7930_DREG_DR);
val |= bba_codec_dread(sc, AM7930_DREG_DR) << 8;