iOS External Accessory Framework: how to get a protocol string for certain MFI device
<p>I'm writing an iOS application for communicating with mini mPlay Drumi MP18B (a small Bluetooth loudspeaker). As far as I know, <code>showBluetoothAccessoryPickerWithNameFilter</code> displays only devices with protocol strings added to Supported External Accessory Protocols key of Info.plist. So I need to add this protocol string to a list.</p>

<p>Where can I get a protocol string for this certain device? Is there a list of device supported protocols anywhere in an internet? Most of manufactures doesn't mention this information in their technical specifications.</p>

<p>Apple refer this protocol string (or ID) in a documentation:</p>

<blockquote>
  <p>The picker displays only Bluetooth devices that include an iAP over Bluetooth unique ID in their extended inquiry response.</p>
</blockquote>