SM502_PWM1
voyager_print_pwm(sc, SM502_PWM1);
bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_PWM1, sc->sc_reg);
while ((bus_space_read_4(sc->sc_memt, sc->sc_regh, SM502_PWM1) &
bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_PWM1,
reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, SM502_PWM1);
bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_PWM1, sc->sc_reg);
bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_PWM1, sc->sc_reg);