From 4373ef2e2694f747c93c4ff8170042a5213de486 Mon Sep 17 00:00:00 2001
From: Bernard Xiong <bernard.xiong@gmail.com>
Date: Tue, 5 May 2015 10:43:15 +0800
Subject: [PATCH] [Utilities] Change the log_trace_init to auto init.

---
 components/utilities/logtrace/log_trace.c | 8 ++++++--
 components/utilities/logtrace/log_trace.h | 2 +-
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/components/utilities/logtrace/log_trace.c b/components/utilities/logtrace/log_trace.c
index 2ac94c19d..4c54adfd0 100644
--- a/components/utilities/logtrace/log_trace.c
+++ b/components/utilities/logtrace/log_trace.c
@@ -368,7 +368,7 @@ static rt_err_t _log_control(rt_device_t dev, rt_uint8_t cmd, void *arg)
     return rt_device_control(_traceout_device, cmd, arg);
 }
 
-void log_trace_init(void)
+int log_trace_init(void)
 {
     rt_memset(&_log_device, 0x00, sizeof(_log_device));
 
@@ -385,7 +385,11 @@ void log_trace_init(void)
     _log_device.tx_complete = RT_NULL;
 
     rt_device_register(&_log_device, "log", RT_DEVICE_FLAG_STREAM | RT_DEVICE_FLAG_RDWR);
-    return ;
+
+	/* set console as default device */
+	_traceout_device = rt_console_get_device();
+
+    return 0;
 }
 
 rt_device_t log_trace_get_device(void)
diff --git a/components/utilities/logtrace/log_trace.h b/components/utilities/logtrace/log_trace.h
index 1e8cc4aba..dc9aafd3c 100644
--- a/components/utilities/logtrace/log_trace.h
+++ b/components/utilities/logtrace/log_trace.h
@@ -89,7 +89,7 @@ struct log_trace_session
 };
 
 /** initialize the log_trace system */
-void log_trace_init(void);
+int log_trace_init(void);
 
 /** register a session.
  *
-- 
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