This file described features of the camera.

Here is a deviceInfo.xml from A33

<?xml version="1.0" encoding="utf-8"?>
<plist version="1.0">
<dict>
	<key>XMLFileType</key>
	<string>DeviceInfoXML</string>
	<key>Version</key>
	<string>1.0.00.16230</string>
	<key>DeviceInfo</key>
	<dict>
		<key>Category</key>
		<integer>6</integer>
		<key>Feature</key>
		<integer>3712</integer>
		<key>Format</key>
		<integer>66</integer>
		<key>db</key>
		<dict>
			<key>name</key>
			<string>AVIndex</string>
			<key>version</key>
			<string>1.0.00</string>
		</dict>
	</dict>
</dict>
</plist>