title: Does Android 4.2.2 support usb bluetooth dongle?
body: <p>I can use <code>blueZ hciconfig</code> to find the usb bluetooth device 'hci0'. But I can't enable the bluetooth on Android 4.2.2. It seems android use a new bluetooth stack since version 4.2 . So it doesn't rely on the BlueZ statck now.
  This is my BoardConfig:</p>
  
  <pre><code>BOARD_HAVE_BLUETOOTH := true  
  BOARD_HAVE_BLUETOOTH_BCM := true
  </code></pre>
  
  <p>And I enabled the <code>HCI USB drvier</code> in the kernel.</p>
  
  <p>Does any one have the idea about how to support <code>usb bluetooth</code> dongle on Android 4.2.2 ?
  The issue stuck me two weeks. And I can't get more information from the internet.</p>
  
  <p>Thanks very much !</p>