overlay/frameworks/base/core/res/res/values/config.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/*
** Copyright 2011, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
**     http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
-->

<!-- These resources are around just to allow their values to be customized
     for different hardware and product builds. -->
<resources>

    <string-array name="config_usbHostBlacklist">
        <!--  /dev/bus/usb/003 is the external bus. Exclude the others. 
              NOTE: on wingray the external bus is 002, so we override the value
              in the wingray resource overlay.
    -->
        <item>/dev/bus/usb/001</item>
        <item>/dev/bus/usb/002</item>
    </string-array>

    <!-- exclude the none-billable APNs for data usage calculation -->
    <integer-array translatable="false" name="config_data_usage_network_types">
        <item>0</item> <!-- TYPE_MOBILE -->
        <item>2</item> <!-- TYPE_MOBILE_MMS -->
        <item>3</item> <!-- TYPE_MOBILE_SUPL -->
        <item>4</item> <!-- TYPE_MOBILE_DUN -->
        <item>5</item> <!-- TYPE_MOBILE_HIPRI -->
    </integer-array>

</resources>