Add missing retval description

Change-Id: I07c29110d4266aa0b4cdfd319bcf514cd2106803
Signed-off-by: Suyeon Hwang <stom.hwang@samsung.com>

diff --git a/include/voice_control.h b/include/voice_control.h
index df8843d..b4939e9 100644 (file)
--- a/include/voice_control.h
+++ b/include/voice_control.h
@@ -231,6 +231,7 @@ int vc_get_state(vc_state_e* state);
  * @retval #VC_ERROR_NOT_SUPPORTED Not supported
  * @retval #VC_ERROR_PERMISSION_DENIED Permission denied
  * @retval #VC_ERROR_INVALID_PARAMETER Invalid parameter
+ * @retval #VC_ERROR_INVALID_STATE Invalid state
  * @pre The state should be #VC_STATE_READY.
  * @see vc_set_service_state_changed_cb()
  * @see vc_unset_service_state_changed_cb()