pcm1796_write
pcm1796_write(chip, codec, reg, value);
pcm1796_write(chip, i, 18,
pcm1796_write(chip, i, 16, chip->dac_volume[i * 2]
pcm1796_write(chip, i, 17, chip->dac_volume[i * 2 + 1]
pcm1796_write(chip, i, 19,
pcm1796_write(chip, i, 20,
pcm1796_write(chip, i, 21, 0);
pcm1796_write(chip, i, 19, reg);
pcm1796_write(chip, i, 18, reg);