Index: uspace/drv/vhc/hcd.c
===================================================================
--- uspace/drv/vhc/hcd.c	(revision 11658b6402ef30f4b33c870d53939c869485ae26)
+++ uspace/drv/vhc/hcd.c	(revision 1f383dde20a2b1e39baa81fbc44a73c126e508e4)
@@ -104,5 +104,5 @@
 	sleep(5);
 
-	usb_dprintf_enable(NAME, 0);
+	usb_dprintf_enable(NAME, -1);
 
 	printf(NAME ": virtual USB host controller driver.\n");