diff --git a/sys/dev/usb/ohci.c b/sys/dev/usb/ohci.c
index 58cdf0ad24f0..bb3e2ae9f668 100644
--- a/sys/dev/usb/ohci.c
+++ b/sys/dev/usb/ohci.c
@@ -191,6 +191,7 @@ Static int		ohci_str(usb_string_descriptor_t *, int, const char *);
 
 Static void		ohci_timeout(void *);
 Static void		ohci_rhsc_able(ohci_softc_t *, int);
+Static void		ohci_rhsc_enable(void *);
 
 Static void		ohci_close_pipe(usbd_pipe_handle, ohci_soft_ed_t *);
 Static void		ohci_abort_xfer(usbd_xfer_handle, usbd_status);
@@ -357,6 +358,8 @@ ohci_detach(struct ohci_softc *sc, int flags)
 	if (rv != 0)
 		return (rv);
 
+	usb_uncallout(sc->sc_tmo_rhsc, ohci_rhsc_enable, sc);
+
 #if defined(__NetBSD__) || defined(__OpenBSD__)
 	powerhook_disestablish(sc->sc_powerhook);
 	shutdownhook_disestablish(sc->sc_shutdownhook);
@@ -861,6 +864,8 @@ ohci_init(ohci_softc_t *sc)
 	sc->sc_shutdownhook = shutdownhook_establish(ohci_shutdown, sc);
 #endif
 
+	usb_callout_init(sc->sc_tmo_rhsc);
+
 	return (USBD_NORMAL_COMPLETION);
 
  bad5:
@@ -1101,6 +1106,8 @@ ohci_intr1(ohci_softc_t *sc)
 		 * on until the port has been reset.
 		 */
 		ohci_rhsc_able(sc, 0);
+		/* Do not allow RHSC interrupts > 1 per second */
+		usb_callout(sc->sc_tmo_rhsc, hz, ohci_rhsc_enable, sc);
 	}
 
 	sc->sc_bus.intr_context--;
@@ -1125,6 +1132,14 @@ ohci_rhsc_able(ohci_softc_t *sc, int on)
 	}
 }
 
+void
+ohci_rhsc_enable(void *v_sc)
+{
+	ohci_softc_t *sc = v_sc;
+
+	ohci_rhsc_able(sc, 1);
+}
+
 #ifdef OHCI_DEBUG
 char *ohci_cc_strs[] = {
 	"NO_ERROR",