Index: uspace/drv/vhc/hcd.c
===================================================================
--- uspace/drv/vhc/hcd.c	(revision 70a909239d54311abf05e8ec1466aa8c006e106c)
+++ uspace/drv/vhc/hcd.c	(revision 0a9ea4a54c709b69b98fe037fe28f5f800446742)
@@ -116,5 +116,5 @@
 	sleep(5);
 
-	usb_dprintf_enable(NAME, 0);
+	usb_dprintf_enable(NAME, -1);
 
 	printf(NAME ": virtual USB host controller driver.\n");