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

<?xml version="1.0" encoding="utf-8"?>
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<resources>

    <!-- Audio -->
    <!-- Whether the Unprocessed audio source supports the required frequency range and level -->
    <bool name="config_supportAudioSourceUnprocessed">true</bool>


    <!-- Bluetooth -->
    <!-- Boolean indicating if current platform supports HFP inband ringing -->
    <bool name="config_bluetooth_hfp_inband_ringing_support">true</bool>

    <!-- Boolean indicating if current platform supports BLE peripheral mode -->
    <bool name="config_bluetooth_le_peripheral_mode_supported">true</bool>


    <!-- Camera Shutter -->
    <!-- Whether camera shutter sound is forced or not  (country specific). -->
    <bool name="config_camera_sound_forced">false</bool>


    <!-- Dialer -->
    <!-- The name of the package that will hold the dialer role by default. -->
    <string name="config_defaultDialer" translatable="false">com.android.dialer</string>


    <!-- Doze -->
    <!-- Enable doze mode -->
    <string name="config_dozeComponent">com.android.systemui/com.android.systemui.doze.DozeService</string>
    <bool name="config_dozeAfterScreenOff">true</bool>
    <!-- Screen brightness when dozing. -->
    <integer name="config_screenBrightnessDoze">17</integer>
    <bool name="config_powerDecoupleInteractiveModeFromDisplay">false</bool>
    <bool name="config_setColorTransformAccelerated">true</bool>


    <!-- Multi User -->
    <!--  Maximum number of supported users -->
    <integer name="config_multiuserMaximumUsers">4</integer>
    <!--  Whether Multiuser UI should be shown -->
    <bool name="config_enableMultiUserUI">true</bool>


    <!-- NTP Server -->

    <!-- Remote server that can provide NTP responses. -->
    <string translatable="false" name="config_ntpServer">europe.pool.ntp.org</string>


    <!-- Screen and Display -->

    <!-- Flag indicating whether the we should enable the automatic brightness in Settings.
         Software implementation will be used if config_hardware_auto_brightness_available is not set -->
    <bool name="config_automatic_brightness_available">true</bool>

    <!-- The maximum range of gamma adjustment possible using the screen
        auto-brightness adjustment setting. -->
    <fraction name="config_autoBrightnessAdjustmentMaxGamma">300%</fraction>

    <!-- Stability requirements in milliseconds for accepting a new brightness level.  This is used
        for debouncing the light sensor.  Different constants are used to debounce the light sensor
        when adapting to brighter or darker environments.  This parameter controls how quickly
        brightness changes occur in response to an observed change in light level that exceeds the
        hysteresis threshold. -->
    <integer name="config_autoBrightnessBrighteningLightDebounce">2000</integer>
    <integer name="config_autoBrightnessDarkeningLightDebounce">8000</integer>

    <!-- Array of light sensor LUX values to define our levels for auto backlight brightness support.
         The N entries of this array define N + 1 control points as follows:
         (1-based arrays)

         Point 1:            (0, value[1]):             lux <= 0
         Point 2:     (level[1], value[2]):  0        < lux <= level[1]
         Point 3:     (level[2], value[3]):  level[2] < lux <= level[3]
         ...
         Point N+1: (level[N], value[N+1]):  level[N] < lux

         The control points must be strictly increasing.  Each control point
         corresponds to an entry in the brightness backlight values arrays.
         For example, if LUX == level[1] (first element of the levels array)
         then the brightness will be determined by value[2] (second element
         of the brightness values array).

         Spline interpolation is used to determine the auto-brightness
         backlight values for LUX levels between these control points.

         Must be overridden in platform specific overlays -->
    <integer-array name="config_autoBrightnessLevels">
        <item>10</item>
        <item>30</item>
        <item>60</item>
        <item>100</item>
        <item>150</item>
        <item>210</item>
        <item>255</item>
    </integer-array>

    <!-- Array of output values for LCD backlight corresponding to the LUX values
         in the config_autoBrightnessLevels array.  This array should have size one greater
         than the size of the config_autoBrightnessLevels array.
         The brightness values must be between 0 and 255 and be non-decreasing.
         This must be overridden in platform specific overlays -->
    <integer-array name="config_autoBrightnessLcdBacklightValues">
        <item>10</item>
        <item>20</item>
        <item>40</item>
        <item>70</item>
        <item>110</item>
        <item>160</item>
        <item>200</item>
        <item>255</item>
    </integer-array>

    <!-- Screen brightness used to dim the screen when the user activity
        timeout expires.  May be less than the minimum allowed brightness setting
        that can be set by the user. -->
    <integer name="config_screenBrightnessDim">1</integer>

    <!-- Default screen brightness setting.
        Must be in the range specified by minimum and maximum. -->
    <integer name="config_screenBrightnessSettingDefault">71</integer>

    <!-- Indicate whether to allow the device to suspend when the screen is off
    due to the proximity sensor.  This resource should only be set to true
    if the sensor HAL correctly handles the proximity sensor as a wake-up source.
    Otherwise, the device may fail to wake out of suspend reliably.
    The default is false. -->
    <bool name="config_suspendWhenScreenOffDueToProximity">true</bool>

    <!-- If this is true, the screen will come on when you plug/unplug usb/power/whatever. -->
    <bool name="config_unplugTurnsOnScreen">true</bool>


    <!-- Navigation bar -->

    <!-- Enable system navigation keys. -->
    <bool name="config_supportSystemNavigationKeys">true</bool>

    <!-- Whether a software navigation bar should be shown. NOTE: in the future this may be
        autodetected from the Configuration. -->
    <bool name="config_showNavigationBar">true</bool>


    <!-- Round Icons -->

    <!-- Set icon mask to circle -->
    <string name="config_icon_mask" translatable="false">"M50 0A50 50,0,1,1,50 100A50 50,0,1,1,50 0"</string>

    <!-- Flag indicating whether round icons should be parsed from the application manifest. -->
    <bool name="config_useRoundIcon">true</bool>


    <!-- Biometics -->

    <!-- List of biometric sensors on the device, in decreasing strength. Consumed by AuthService
         when registering authenticators with BiometricService. Format must be ID:Modality:Strength,
         where: IDs are unique per device, Modality as defined in BiometricAuthenticator.java,
         and Strength as defined in Authenticators.java -->
    <string-array name="config_biometric_sensors" translatable="false" >
        <item>0:2:15</item> <!-- ID0:Fingerprint:Strong -->
    </string-array>


    <!-- NOTE: All Telephony/IMS/Operator Requirement configs to be added below this line. -->


    <!-- Set to true to add links to Cell Broadcast app from Settings and MMS app. -->
    <bool name="config_cellBroadcastAppLinks">true</bool>

    <!-- This string array should be overridden by the device to present a list of network
         attributes.  This is used by the connectivity manager to decide which networks can coexist
         based on the hardware -->
    <!-- An Array of "[Connection name],[ConnectivityManager.TYPE_xxxx],
         [associated radio-type],[priority],[restoral-timer(ms)],[dependencyMet]  -->
    <!-- the 5th element "resore-time" indicates the number of milliseconds to delay
         before automatically restore the default connection.  Set -1 if the connection
         does not require auto-restore. -->
    <!-- the 6th element indicates boot-time dependency-met value. -->
    <string-array translatable="false" name="networkAttributes">
        <item>"wifi,1,1,1,-1,true"</item>
        <item>"mobile,0,0,0,-1,true"</item>
        <item>"mobile_mms,2,0,4,60000,true"</item>
        <item>"mobile_supl,3,0,2,60000,true"</item>
        <item>"mobile_dun,4,0,2,60000,true"</item>
        <item>"mobile_hipri,5,0,3,60000,true"</item>
        <item>"mobile_fota,10,0,2,60000,true"</item>
        <item>"mobile_ims,11,0,2,60000,true"</item>
        <item>"mobile_cbs,12,0,2,60000,true"</item>
        <item>"bluetooth,7,7,2,-1,true"</item>
        <item>"mobile_emergency,15,0,5,-1,true"</item>
    </string-array>

    <!-- This string array should be overridden by the device to present a list of radio
         attributes.  This is used by the connectivity manager to decide which networks can coexist
         based on the hardware -->
    <!-- An Array of "[ConnectivityManager connectionType],
                      [# simultaneous connection types]"  -->
    <string-array translatable="false" name="radioAttributes">
        <item>"1,1"</item>
        <item>"0,1"</item>
        <item>"7,1"</item>
    </string-array>

    <!-- Boolean indicating if restoring network selection should be skipped -->
    <!-- The restoring is handled by modem if it is true-->
    <bool translatable="false" name="skip_restoring_network_selection">true</bool>

    <!-- Is the device capable of hot swapping an ICC Card -->
    <bool name="config_hotswapCapable">true</bool>

    <!-- MMS user agent string -->
    <string name="config_mms_user_agent" translatable="false">Android-Mms/2.0</string>

    <!-- MMS user agent prolfile url -->
    <string name="config_mms_user_agent_profile_url" translatable="false"
            >http://www.google.com/oha/rdf/ua-profile-kila.xml</string>

    <!-- Configuration to restart radio upon PDP_DEACTIVATE with
         error cause as Regular deactivation(36). -->
    <!--
    <bool name="config_radio_reset_on_regular_deactivation">false</bool>
    -->
    <!-- Flag indicating if the speed up audio on mt call code should be executed -->
    <bool name="config_speed_up_audio_on_mt_calls">true</bool>

    <!-- Flag specifying whether VoLTE, VT and WFC is available on device -->
    <bool name="config_device_volte_available">true</bool>
    <bool name="config_device_vt_available">true</bool>
    <bool name="config_device_wfc_ims_available">true</bool>

    <!-- Flag specifying whether VoLTE & VT should be available for carrier: independent of
         carrier provisioning. If false: hard disabled. If true: then depends on carrier
         provisioning, availability etc -->
    <bool name="config_carrier_volte_available">true</bool>

    <!-- Configure mobile tcp buffer sizes in the form:
         rat-name:rmem_min,rmem_def,rmem_max,wmem_min,wmem_def,wmem_max
         If no value is found for the rat-name in use, the system default will be applied.
    -->
    <string-array name="config_mobile_tcp_buffers">
        <item>"5gnr:2097152,6291456,16777216,512000,2097152,8388608"</item>
        <item>"lte:2097152,4194304,8388608,262144,524288,1048576"</item>
        <item>"lte_ca:4096,6291456,12582912,4096,1048576,2097152"</item>
        <item>"umts:4094,87380,1220608,4096,16384,1220608"</item>
        <item>"hspa:4094,87380,1220608,4096,16384,1220608"</item>
        <item>"hsupa:4094,87380,1220608,4096,16384,1220608"</item>
        <item>"hsdpa:4094,87380,1220608,4096,16384,1220608"</item>
        <item>"hspap:4094,87380,1220608,4096,16384,1220608"</item>
        <item>"edge:4093,26280,35040,4096,16384,35040"</item>
        <item>"gprs:4092,8760,11680,4096,8760,11680"</item>
        <item>"evdo:4094,87380,524288,4096,16384,262144"</item>
    </string-array>

</resources>