Merge pull request #2 from RT-Thread/master

update from official source

1 files changed, 3 insertions, 3 deletions

diff --git a/src/device.c b/src/device.c
index 2bb3cc0f9c..957c9fc774 100644
--- a/src/device.c
+++ b/src/device.c
@@ -80,7 +80,7 @@ RTM_EXPORT(rt_device_unregister);
  *
  * @return the error code, RT_EOK on successfully.
  *
- * @deprecated This function is not needed because the initialization 
+ * @deprecated since 1.2.x, this function is not needed because the initialization 
  *             of a device is performed when applicaiton opens it.
  */
 rt_err_t rt_device_init_all(void)
@@ -362,8 +362,8 @@ rt_err_t rt_device_control(rt_device_t dev, rt_uint8_t cmd, void *arg)
 RTM_EXPORT(rt_device_control);
 
 /**
- * This function will set the indication callback function when device receives
- * data.
+ * This function will set the reception indication callback function. This callback function
+ * is invoked when this device receives data.
  *
  * @param dev the pointer of device driver structure
  * @param rx_ind the indication callback function