PL01X_MCR_DTR
SET(plcombits, PL01X_MCR_DTR);
CLR(sc->sc_mcr, PL01X_MCR_DTR | PL01X_MCR_RTS);
if (ISSET(plcombits, PL01X_MCR_DTR))
sc->sc_mcr_dtr = PL01X_MCR_DTR;
sc->sc_mcr_rts = PL01X_MCR_DTR;
sc->sc_mcr_dtr = PL01X_MCR_DTR | PL01X_MCR_RTS;
if (ISSET(sc->sc_mcr, PL01X_MCR_DTR))
CLR(sc->sc_cr, PL011_MCR(PL01X_MCR_RTS | PL01X_MCR_DTR));
CLR(sc->sc_cr, PL011_MCR(PL01X_MCR_RTS | PL01X_MCR_DTR));
PL01X_MCR_DTR | PL01X_MCR_RTS);
ISSET(sc->sc_mcr, PL01X_MCR_DTR) ? "+" : "-",
SET(sc->sc_mcr, PL01X_MCR_DTR | PL01X_MCR_RTS);
if (mcr & PL01X_MCR_DTR)
if (mcr & PL01X_MCR_DTR)