olddens = sc->sc_dens;
dens = sc->sc_dens = (minor(dev)&H_6250BPI) ? MT_GCR : 0;
mtcommand(dev, MT_SENSE, 1);
sc->sc_dens = olddens;
if ((sc->sc_dsreg & MTDS_ONL) == 0) {
uprintf("mu%d: not online\n", muunit);
olddens = sc->sc_dens;
dens = sc->sc_dens = (minor(dev)&H_6250BPI) ? MT_GCR : 0;
mtcommand(dev, MT_SENSE, 1);
sc->sc_dens = olddens;
if ((sc->sc_dsreg & MTDS_ONL) == 0) {
uprintf("mu%d: not online\n", muunit);