CM_AC3EN2        1201 sound/pci/cmipci.c 		snd_cmipci_set_bit(cm, CM_REG_MISC_CTRL, CM_AC3EN2);
CM_AC3EN2        1223 sound/pci/cmipci.c 		snd_cmipci_clear_bit(cm, CM_REG_MISC_CTRL, CM_AC3EN2);