iclass            238 dev/audio.c    	int iclass, oclass, mclass;
iclass            295 dev/audio.c    	iclass = oclass = mclass = -1;
iclass            310 dev/audio.c    			iclass = mi.index;
iclass            323 dev/audio.c    		au_check_ports(sc, &sc->sc_inports,  &mi, iclass,