MCDF_LOCKED       306 dev/isa/mcd.c  	while ((sc->flags & MCDF_LOCKED) != 0) {
MCDF_LOCKED       311 dev/isa/mcd.c  	sc->flags |= MCDF_LOCKED;
MCDF_LOCKED       323 dev/isa/mcd.c  	sc->flags &= ~MCDF_LOCKED;