diff --git a/bluetooth/bt_vendor_overlay.conf b/bluetooth/bt_vendor_overlay.conf
index 4f92223..3750cba 100644
--- a/bluetooth/bt_vendor_overlay.conf
+++ b/bluetooth/bt_vendor_overlay.conf
@@ -3,8 +3,18 @@
 # Uart port name
 UartPort = /dev/ttySAC18
 
-# Userial type
-# UserialType = 2
+# Priority of uart type
+# HciUartSocket = 0
+# SerialUartPort = 1
+# SerialAocUartPort = 2
+# UserialInvalid = 3
+UserialTypePriority = 2-1
+
+# <string> The hardware support which offload capability
+BtOffloadCap = AOC
+
+# <string> The BT Offload Trunk Flag Group Name
+BtOffloadTrunkGroup = 24P_AOC
 
 # <boolean> Enable check whether let aoc controls power pin
 AocPowerPinCtrlCheckEnable = true