diff --git a/returnvalues/HasReturnvaluesIF.h b/returnvalues/HasReturnvaluesIF.h
index 7a861b50..04acd66e 100644
--- a/returnvalues/HasReturnvaluesIF.h
+++ b/returnvalues/HasReturnvaluesIF.h
@@ -15,6 +15,10 @@ public:
 	//! This will be the all-ones value irrespective of used unsigned datatype.
 	static const ReturnValue_t RETURN_FAILED = -1;
 	virtual ~HasReturnvaluesIF() {}
+
+	static ReturnValue_t makeReturnCode(uint8_t interfaceId, uint8_t number) {
+	    return (interfaceId << 8) + number;
+	}
 };
 
 #endif /* HASRETURNVALUESIF_H_ */