From 6459839f287996424dae870fd00fe499d8693530 Mon Sep 17 00:00:00 2001
From: Bernard Xiong <bernard.xiong@gmail.com>
Date: Fri, 24 Apr 2015 11:42:40 +0800
Subject: [PATCH] Add extern declaration for C++.

---
 components/drivers/include/rtdevice.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/components/drivers/include/rtdevice.h b/components/drivers/include/rtdevice.h
index bb01da2d12..5d74ed6199 100644
--- a/components/drivers/include/rtdevice.h
+++ b/components/drivers/include/rtdevice.h
@@ -28,6 +28,10 @@
 
 #include <rtthread.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #define RT_DEVICE(device)            ((rt_device_t)device)
 
 /* completion flag */
@@ -362,5 +366,9 @@ rt_inline void rt_work_init(struct rt_work* work, void (*work_func)(struct rt_wo
 #include "drivers/pin.h"
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* __RT_DEVICE_H__ */