@@ -1187,7 +1187,7 @@ enum rt_device_class_type
/**
* device control
*/
-#define RT_DEVICE_CTRL_BASE(Type) (RT_Device_Class_##Type * 0x100)
+#define RT_DEVICE_CTRL_BASE(Type) ((RT_Device_Class_##Type + 1) * 0x100)
* special device commands