Index: sys/dev/spibus/spibus.c
===================================================================
--- sys/dev/spibus/spibus.c
+++ sys/dev/spibus/spibus.c
@@ -121,9 +121,29 @@
 spibus_child_location_str(device_t bus, device_t child, char *buf,
     size_t buflen)
 {
+	int cs, bus_unit;
+	const char * devclass = device_get_name(child);
 	struct spibus_ivar *devi = SPIBUS_IVAR(child);
 
-	snprintf(buf, buflen, "cs=%d", devi->cs);
+//	spibus_get_cs(child, &cs); /* TODO:  is this better or not? */
+	cs = devi->cs & (~SPIBUS_CS_HIGH); /* trim 'cs high' bit */
+
+	bus_unit = device_get_unit(bus);
+
+//	snprintf(buf, buflen, "cs=%d", devi->cs);
+
+	if (devclass && !strcmp(devclass, "spigen")) { /* spigen device only */
+	    /*
+	     * this hack required due to the fact that there's no canonical
+	     * way to have spigen do an overload of the %location sysctl
+	     */
+	    snprintf(buf, buflen, "bus=%d cs=%d spigen=spigen%d.%d",
+		    bus_unit, cs, bus_unit, cs);
+	}
+	else {
+		snprintf(buf, buflen, "bus=%d cs=%d",
+		    bus_unit, cs);
+	}
 	return (0);
 }
 
Index: sys/dev/spibus/spigen.c
===================================================================
--- sys/dev/spibus/spigen.c
+++ sys/dev/spibus/spigen.c
@@ -64,6 +64,7 @@
 struct spigen_softc {
 	device_t sc_dev;
 	struct cdev *sc_cdev;
+	struct cdev *sc_adev;           /* alias device */
 	struct mtx sc_mtx;
 	uint32_t sc_command_length_max; /* cannot change while mmapped */
 	uint32_t sc_data_length_max;    /* cannot change while mmapped */
@@ -186,11 +187,42 @@
 {
 	struct spigen_softc *sc;
 	const int unit = device_get_unit(dev);
+	int cs, res;
+	struct make_dev_args mda;
+
+	spibus_get_cs(dev, &cs);
+	cs &= ~SPIBUS_CS_HIGH; /* trim 'cs high' bit */
 
 	sc = device_get_softc(dev);
 	sc->sc_dev = dev;
-	sc->sc_cdev = make_dev(&spigen_cdevsw, unit,
-	    UID_ROOT, GID_OPERATOR, 0660, "spigen%d", unit);
+
+	make_dev_args_init(&mda);
+	mda.mda_flags = 0; /* see make_dev in kern_conf.c */
+	mda.mda_devsw = &spigen_cdevsw;
+	mda.mda_cr = NULL; /* see make_dev in kern_conf.c */
+	mda.mda_uid = UID_ROOT;
+	mda.mda_gid = GID_OPERATOR;
+	mda.mda_mode = 0660;
+	mda.mda_unit = unit;
+
+//	res = make_dev_s(&mda, &(sc->sc_cdev), "spigen%d", unit);
+	res = make_dev_s(&mda, &(sc->sc_cdev), "spigen%d.%d",
+	    device_get_unit(device_get_parent(dev)), cs);
+	if (res) {
+		return res;
+	}
+
+//	res = make_dev_alias_p(0, &(sc->sc_adev), sc->sc_cdev, "spigen%d.%d",
+//	    device_get_unit(device_get_parent(dev)), cs);
+	res = make_dev_alias_p(0, &(sc->sc_adev), sc->sc_cdev, "spigen%d", unit);
+	if (res) {
+		if (sc->sc_cdev) { /* TODO:  should I just rely on 'detach' to do this? */
+			destroy_dev(sc->sc_cdev);
+			sc->sc_cdev = NULL;
+		}
+		return res;
+	}
+
 	sc->sc_cdev->si_drv1 = dev;
 	sc->sc_command_length_max = PAGE_SIZE;
 	sc->sc_data_length_max = PAGE_SIZE;
@@ -429,8 +461,11 @@
 
 	mtx_destroy(&sc->sc_mtx);
 
-        if (sc->sc_cdev)
-                destroy_dev(sc->sc_cdev);
+	if (sc->sc_adev)
+		destroy_dev(sc->sc_adev);
+
+	if (sc->sc_cdev)
+		destroy_dev(sc->sc_cdev);
 	
 	return (0);
 }