hpcio_portread
printf("USB port %s\n", hpcio_portread(sc->sc_iochip, 1) ? "ON" : "OFF");
hpcio_portwrite(sc->sc_iochip, 45, hpcio_portread(sc->sc_iochip, 1));
*(int*)msg = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_active);
on = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_active);
on = (hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on);
*(int*)msg = hpcio_portread(sc->sc_hc, sc->sc_port) == sc->sc_on;
sc->sc_save = hpcio_portread(sc->sc_hc, sc->sc_port);