Index: HelenOS.config
===================================================================
--- HelenOS.config	(revision 11e00c889ad73b062a5f1e690d96007c72ee5676)
+++ HelenOS.config	(revision f64e81a57483b1f1d3b6aa123e40642da170c1e1)
@@ -555,4 +555,9 @@
 ! [CONFIG_STRIP_BINARIES!=y] CONFIG_LINE_DEBUG (n/y)
 
+# USB settings 
+
+% USB release build (less logging)
+! CONFIG_USB_RELEASE_BUILD (n/y)
+
 % Start virtual USB host controller
 ! CONFIG_RUN_VIRTUAL_USB_HC (n/y)
Index: uspace/lib/usb/include/usb/debug.h
===================================================================
--- uspace/lib/usb/include/usb/debug.h	(revision 11e00c889ad73b062a5f1e690d96007c72ee5676)
+++ uspace/lib/usb/include/usb/debug.h	(revision f64e81a57483b1f1d3b6aa123e40642da170c1e1)
@@ -81,6 +81,9 @@
 
 /** Default log level. */
-#define USB_LOG_LEVEL_DEFAULT USB_LOG_LEVEL_DEBUG
-
+#ifdef CONFIG_USB_RELEASE_BUILD
+#  define USB_LOG_LEVEL_DEFAULT USB_LOG_LEVEL_INFO
+#else
+#  define USB_LOG_LEVEL_DEFAULT USB_LOG_LEVEL_DEBUG
+#endif
 
 void usb_log_enable(usb_log_level_t, const char *);