diff --git a/app/lwip/app/dummy.c b/app/lwip/app/dummy.c
index 78c42255..a7a74ed9 100644
--- a/app/lwip/app/dummy.c
+++ b/app/lwip/app/dummy.c
@@ -1,4 +1,10 @@
+/******************************************************************************
+ * FunctionName : espconn_init
+ * Description  : dummy the espconn_init
+ * Parameters   : none
+ * Returns      : none
+*******************************************************************************/
 void espconn_init()
 {
 	// dummy function, do nothing.
-}
\ No newline at end of file
+}