MCR_IENABLE       632 arch/i386/isa/pccom.c 			SET(sc->sc_mcr, MCR_IENABLE);
MCR_IENABLE       405 dev/ic/com.c   			SET(sc->sc_mcr, MCR_IENABLE);
MCR_IENABLE       129 dev/ic/com_subr.c 	SET(sc->sc_mcr, MCR_DTR | MCR_RTS | MCR_IENABLE);