CM_CHEN0          881 sound/pci/cmipci.c 	chen = CM_CHEN0 << rec->ch;
CM_CHEN0         1350 sound/pci/cmipci.c 		cm->ctrl |= CM_CHEN0 << rec->ch;
CM_CHEN0         1358 sound/pci/cmipci.c 		cm->ctrl &= ~(CM_CHEN0 << rec->ch);