mvneta_mediachange
STATIC int mvneta_mediachange(if_t);
error = mii_attach(self, &sc->miibus, ifp, mvneta_mediachange,
ifmedia_init(&sc->mvneta_ifmedia, 0, mvneta_mediachange,
ifmedia_init(&sc->mvneta_ifmedia, 0, mvneta_mediachange,