diff --git a/sys/dev/ppbus/ppb_base.c b/sys/dev/ppbus/ppb_base.c
--- a/sys/dev/ppbus/ppb_base.c
+++ b/sys/dev/ppbus/ppb_base.c
@@ -220,6 +220,14 @@
 	mtx_unlock(ppb->ppc_lock);
 }
 
+struct mtx *
+ppb_get_lock(device_t bus)
+{
+	struct ppb_data *ppb = DEVTOSOFTC(bus);
+
+	return (ppb->ppc_lock);
+}
+
 void
 _ppb_assert_locked(device_t bus, const char *file, int line)
 {
diff --git a/sys/dev/ppbus/ppbconf.h b/sys/dev/ppbus/ppbconf.h
--- a/sys/dev/ppbus/ppbconf.h
+++ b/sys/dev/ppbus/ppbconf.h
@@ -259,6 +259,7 @@
 /* bus related functions */
 extern void ppb_lock(device_t);
 extern void ppb_unlock(device_t);
+extern struct mtx *ppb_get_lock(device_t);
 extern void _ppb_assert_locked(device_t, const char *, int);
 extern void ppb_init_callout(device_t, struct callout *, int);
 extern int ppb_sleep(device_t, void *, int, const char *, int);
diff --git a/sys/dev/ppbus/pps.c b/sys/dev/ppbus/pps.c
--- a/sys/dev/ppbus/pps.c
+++ b/sys/dev/ppbus/pps.c
@@ -141,9 +141,11 @@
 	    UID_ROOT, GID_WHEEL, 0600, PPS_NAME "%d", unit);
 	sc->devs[0] = d;
 	sc->pps[0].ppscap = PPS_CAPTUREASSERT | PPS_ECHOASSERT;
+	sc->pps[0].driver_abi = PPS_ABI_VERSION;
+	sc->pps[0].driver_mtx = ppb_get_lock(ppbus);
 	d->si_drv1 = sc;
 	d->si_drv2 = (void*)0;
-	pps_init(&sc->pps[0]);
+	pps_init_abi(&sc->pps[0]);
 
 	ppb_lock(ppbus);
 	if (ppb_request_bus(ppbus, dev, PPB_DONTWAIT)) {
@@ -193,9 +195,11 @@
 			  UID_ROOT, GID_WHEEL, 0600, PPS_NAME "%db%d", unit, i - 1);
 			sc->devs[i] = d;
 			sc->pps[i].ppscap = PPS_CAPTUREASSERT | PPS_CAPTURECLEAR;
+			sc->pps[i].driver_abi = PPS_ABI_VERSION;
+			sc->pps[i].driver_mtx = ppb_get_lock(ppbus);
 			d->si_drv1 = sc;
 			d->si_drv2 = (void *)(intptr_t)i;
-			pps_init(&sc->pps[i]);
+			pps_init_abi(&sc->pps[i]);
 		}
 		ppb_lock(ppbus);
 	} while (0);