UMB_S_UP
state = (sc->sc_state == UMB_S_UP) ? LINK_STATE_UP : LINK_STATE_DOWN;
case UMB_S_UP:
if (sc->sc_state < UMB_S_UP)
case UMB_S_UP:
state = UMB_S_UP;
{ UMB_S_UP, "up" }, \