<?xml version="1.0"?>
<!DOCTYPE SystemDefinition SYSTEM "sysdef_1_4_0.dtd" [
  <!ENTITY layer_real_source_path "sf/os/usb" >
]>

<SystemDefinition name="usb" schema="1.4.0">
  <systemModel>
    <layer name="os_layer">
      <module name="usb">
        <unit unitID="usbdo.usb" mrp="" bldFile="&layer_real_source_path;/group" name="usb" />
      </module>
      <module name="">
        <unit unitID="usbdo.usb.usbextension" mrp="" bldFile="&layer_real_source_path;/usbextension/group" filter="!sf_build" name="usb_usbextension" />
        <unit unitID="usbdo.usb.usb_plat.usb_audio_stream_plugin_api" mrp="" bldFile="&layer_real_source_path;/usb_plat/usb_audio_stream_plugin_api/group" filter="!sf_build" name="usb_usb_plat_usb_audio_stream_plugin_api" />
      </module>    
    </layer>
  </systemModel>
</SystemDefinition>