A comment has been added
@@ -513,7 +513,7 @@ struct rt_object_information
/* 1 or 3 */
#ifndef RT_TIMER_SKIP_LIST_MASK
-#define RT_TIMER_SKIP_LIST_MASK 0x3
+#define RT_TIMER_SKIP_LIST_MASK 0x3 /**< Timer skips the list mask */
#endif
/**
