1 files changed, 1 insertions, 0 deletions
diff --git a/include/rtdef.h b/include/rtdef.h
index 859278e849..bb11bf88ff 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -846,6 +846,7 @@ enum rt_device_class_type
     RT_Device_Class_Portal,                             /**< Portal device */
     RT_Device_Class_Timer,                              /**< Timer device */
     RT_Device_Class_Miscellaneous,                      /**< Miscellaneous device */
+    RT_Device_Class_Sensor,                             /**< Sensor device */
     RT_Device_Class_Unknown                             /**< unknown device */
 };