SPCS2
snd_ca0106_ptr_write(chip, SPCS2, 0, chip->spdif_str_bits[2]);
MICBS, ADCBS, FXBS, CDCS, GPSCS, SPCS0, SPCS1, SPCS2,
SPCS2, emu->spdif_bits[2],
snd_emu10k1x_ptr_write(chip, SPCS2, 0,