udir_output
if (sc->sc_direction == udir_output) {
(sc->sc_direction != udir_output &&
sc->sc_direction = udir_output;
if (sc->sc_direction == udir_output ||
if (sc->sc_direction == udir_output &&
if (sc->sc_direction == udir_output) {
(sc->sc_direction != udir_output &&
sc->sc_direction = udir_output;