snd_cmipci_read_b
val = snd_cmipci_read_b(cm, CM_REG_MIXER1);
(snd_cmipci_read_b(cm, CM_REG_MISC) & CM_SPDIF_INVERSE) ? 1 : 0;
switch (snd_cmipci_read_b(cm, CM_REG_INT_HLDCLR + 3) & 0x03) {
val = snd_cmipci_read_b(cm, CM_REG_MPU_PCI + 1);