1 files changed, 4 insertions, 0 deletions
diff --git a/src/cpu.c b/src/cpu.c
index a89a0cca6a..8108d28da4 100644
--- a/src/cpu.c
+++ b/src/cpu.c
@@ -178,6 +178,8 @@ struct rt_cpu *rt_cpu_self(void)
 /**
  * @brief   This fucntion will return the cpu object corresponding to index.
  *
+ * @param   index is the index of target cpu object.
+ *
  * @return  Return a pointer to the cpu object corresponding to index.
  */
 struct rt_cpu *rt_cpu_index(int index)
@@ -242,6 +244,8 @@ RTM_EXPORT(rt_cpus_unlock);
  * This function is invoked by scheduler.
  * It will restore the lock state to whatever the thread's counter expects.
  * If target thread not locked the cpus then unlock the cpus lock.
+ *
+ * @param   thread is a pointer to the target thread.
  */
 void rt_cpus_lock_status_restore(struct rt_thread *thread)
 {