From 30cbe3cc3e3f54f75e20b23bbf98c59e24c3bc96 Mon Sep 17 00:00:00 2001
From: pathletboy <pathletboy@gmail.com>
Date: Sun, 22 Nov 2015 15:55:19 +0800
Subject: [PATCH] add document.

---
 src/ipc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ipc.c b/src/ipc.c
index fee482985..e545417f1 100644
--- a/src/ipc.c
+++ b/src/ipc.c
@@ -1086,7 +1086,7 @@ RTM_EXPORT(rt_event_send);
  * @param option the receive option, either RT_EVENT_FLAG_AND or
  *        RT_EVENT_FLAG_OR should be set.
  * @param timeout the waiting time
- * @param recved the received event
+ * @param recved the received event, if you don't care, RT_NULL can be set.
  *
  * @return the error code
  */
-- 
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