pipe_receive_fixed
pipe_receive_fixed(sc, 18, &sc->sc_mm.status);
static void pipe_receive_fixed(struct dbri_softc *, int,
pipe_receive_fixed(sc, 21, &sc->sc_mm.d.ldata);
pipe_receive_fixed(sc, 18, &sc->sc_mm.status);
pipe_receive_fixed(sc, 19, &sc->sc_mm.version);