Index: uspace/lib/usbdev/src/pipesinit.c
===================================================================
--- uspace/lib/usbdev/src/pipesinit.c	(revision bb655dab5c3ca3687610d0b331dbf94c79f49ad4)
+++ uspace/lib/usbdev/src/pipesinit.c	(revision 290338bf7224f502808b23e82d98306208962b97)
@@ -146,5 +146,6 @@
 		if (interface_number_fits
 		    && interface_setting_fits
-		    && endpoint_descriptions_fits) {
+		    && endpoint_descriptions_fits
+		    && !mapping->present) {
 			return mapping;
 		}
@@ -153,4 +154,5 @@
 		mapping_count--;
 	}
+
 	return NULL;
 }