1 files changed, 1 insertions, 0 deletions
diff --git a/include/rtdef.h b/include/rtdef.h
index 0690371c6d..e4ddbd37d3 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -871,6 +871,7 @@ enum rt_device_class_type
     RT_Device_Class_Miscellaneous,                      /**< Miscellaneous device */
     RT_Device_Class_Sensor,                             /**< Sensor device */
     RT_Device_Class_Touch,                              /**< Touch device */
+    RT_Device_Class_PHY,                                /**< PHY device */
     RT_Device_Class_Unknown                             /**< unknown device */
 };