diff --git a/Tethering/res/values/config.xml b/Tethering/res/values/config.xml
index effc24a..c999221 100644
--- a/Tethering/res/values/config.xml
+++ b/Tethering/res/values/config.xml
@@ -62,6 +62,13 @@
     <string-array translatable="false" name="config_tether_dhcp_range">
     </string-array>
 
+    <!-- Used to config periodic polls tether offload stats from tethering offload HAL to make the
+     data warnings work. 5000(ms) by default. If the device doesn't want to poll tether
+     offload stats, this should be -1. Note that this setting could be override by
+     runtime resource overlays.
+    -->
+    <integer translatable="false" name="config_tether_offload_poll_interval">5000</integer>
+
     <!-- Array of ConnectivityManager.TYPE_{BLUETOOTH, ETHERNET, MOBILE, MOBILE_DUN, MOBILE_HIPRI,
          WIFI} values allowable for tethering.
 
diff --git a/Tethering/res/values/overlayable.xml b/Tethering/res/values/overlayable.xml
index 16ae8ad..4c78a74 100644
--- a/Tethering/res/values/overlayable.xml
+++ b/Tethering/res/values/overlayable.xml
@@ -24,6 +24,7 @@
             <item type="array" name="config_tether_bluetooth_regexs"/>
             <item type="array" name="config_tether_dhcp_range"/>
             <item type="bool" name="config_tether_enable_legacy_dhcp_server"/>
+            <item type="integer" name="config_tether_offload_poll_interval"/>
             <item type="array" name="config_tether_upstream_types"/>
             <item type="bool" name="config_tether_upstream_automatic"/>
             <!-- Configuration values for tethering entitlement check -->