1 files changed, 1 insertions, 0 deletions
diff --git a/include/rtdef.h b/include/rtdef.h
index 94c9b5f413..c97e938f75 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -854,6 +854,7 @@ enum rt_device_class_type
     RT_Device_Class_Timer,                              /**< Timer device */
     RT_Device_Class_Miscellaneous,                      /**< Miscellaneous device */
     RT_Device_Class_Sensor,                             /**< Sensor device */
+    RT_Device_Class_Touch,                              /**< Touch device */
     RT_Device_Class_Unknown                             /**< unknown device */
 };