TYPE_PL2303HX
sc->sc_chiptype = TYPE_PL2303HX;
sc->sc_chiptype = TYPE_PL2303HX;
if (sc->sc_chiptype == TYPE_PL2303HX) {
case TYPE_PL2303HX:
} else if (sc->sc_chiptype == TYPE_PL2303HX ||
case TYPE_PL2303HX: