Index: uspace/drv/bus/usb/xhci/rh.c
===================================================================
--- uspace/drv/bus/usb/xhci/rh.c	(revision 598733c9553886e10459ee2bc98ecdc2d2bcd4b7)
+++ uspace/drv/bus/usb/xhci/rh.c	(revision bf601313caad120df6bf6f5e598d79db8d969d7c)
@@ -149,4 +149,7 @@
 	*events = event.events;
 	rh->event = NULL;
+
+	/* Wake other threads potentially waiting to post their event */
+	fibril_condvar_broadcast(&rh->event_handled);
 }