android_device_google_gs-common/bcmbt/compatibility_matrix.xml

<compatibility-matrix version="1.0" type="framework" level="7">
    <hal format="hidl">
        <name>hardware.google.bluetooth.ccc</name>
        <version>1.1</version>
        <interface>
            <name>IBluetoothCcc</name>
            <instance>default</instance>
        </interface>
    </hal>
    <hal format="hidl">
        <name>hardware.google.bluetooth.bt_channel_avoidance</name>
        <version>1.0</version>
        <interface>
            <name>IBTChannelAvoidance</name>
            <instance>default</instance>
        </interface>
    </hal>
    <hal format="hidl">
        <name>hardware.google.bluetooth.sar</name>
        <version>1.1</version>
        <interface>
            <name>IBluetoothSar</name>
            <instance>default</instance>
        </interface>
    </hal>
    <hal format="hidl" optional="true">
        <name>hardware.google.bluetooth.ext</name>
        <version>1.0</version>
        <interface>
            <name>IBluetoothExt</name>
            <instance>default</instance>
        </interface>
    </hal>
    <hal format="hidl" optional="true">
        <name>hardware.google.bluetooth.ewp</name>
        <version>1.0</version>
        <interface>
            <name>IBluetoothEwp</name>
            <instance>default</instance>
        </interface>
    </hal>
</compatibility-matrix>