diff --git a/src/devtools/met-driver/4.19/mt2712/switch.h b/src/devtools/met-driver/4.19/mt2712/switch.h
new file mode 100644
index 0000000..14397d7
--- /dev/null
+++ b/src/devtools/met-driver/4.19/mt2712/switch.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2018 MediaTek Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __MT_SWITCH__
+#define __MT_SWITCH__
+/*
+ * =========================
+ * !!!!!!!!!!!NOTICE!!!!!!!!
+ * =========================
+ * MT_SWITCH OPTION must delcare as Mask value
+ * And sort them from smallest to largest
+ * MT_SWITCH_MX_ITEM was used to determine argument range
+*/
+enum {
+	/* =================== */
+	/* user define mt switch event */
+	/* =================== */
+	MT_SWITCH_SCHEDSWITCH = 0x0001,
+	MT_SWITCH_64_32BIT = 0x0002,
+	MT_SWITCH_TAGPOLLING = 0x0004,
+	MT_SWITCH_EVENT_TIMER = 0x0008,
+	/* =================== */
+	MT_SWITCH_MX_ITEM
+};
+
+extern struct metdevice met_switch;
+#endif