MCD_LK_LOCK       365 dev/isa/mcd.c  		(void) mcd_setlock(sc, MCD_LK_LOCK);
MCD_LK_LOCK       709 dev/isa/mcd.c  		return mcd_setlock(sc, MCD_LK_LOCK);
MCD_LK_LOCK       712 dev/isa/mcd.c  		    (*(int *)addr) ? MCD_LK_LOCK : MCD_LK_UNLOCK);