Index: uspace/lib/usb/include/usb/usb.h
===================================================================
--- uspace/lib/usb/include/usb/usb.h	(revision 423c7495b63ae6ae9b9e500a4f2c819a0c00dd02)
+++ uspace/lib/usb/include/usb/usb.h	(revision 93488625b5baeeeee9e1065454fa8734da4f68d8)
@@ -83,4 +83,9 @@
 	USB_SPEED_MAX
 } usb_speed_t;
+
+static inline bool usb_speed_is_11(const usb_speed_t s)
+{
+	return (s == USB_SPEED_FULL) || (s == USB_SPEED_LOW);
+}
 
 const char *usb_str_speed(usb_speed_t);