EFLASHUNIT
#define EFLASHLABELDEV(dev) (MAKEEFLASHDEV(major(dev), EFLASHUNIT(dev), RAW_PART))
struct eflash_softc *sc = device_lookup_private(&eflash_cd, EFLASHUNIT(bp->b_dev));
sc = device_lookup_private(&eflash_cd, EFLASHUNIT(dev));
struct eflash_softc *sc = device_lookup_private(&eflash_cd, EFLASHUNIT(dev));
struct eflash_softc *sc = device_lookup_private(&eflash_cd, EFLASHUNIT(dev));
sc = device_lookup_private(&eflash_cd, EFLASHUNIT(dev));