getsiocsr
rr = getsiocsr(sio);
} while ((rr = getsiocsr(sio)) & RR_RXRDY);
rr = getsiocsr(sio);
} while ((rr = getsiocsr(sio)) & RR_RXRDY);
rr = getsiocsr(sc->sc_ctl);
|| (getsiocsr(sc->sc_ctl) & RR_DCD))
while ((getsiocsr(sio) & RR_RXRDY) == 0)
while ((getsiocsr(sio) & RR_TXRDY) == 0)
int getsiocsr(struct sioreg *);