I added: <uses-permission android:name="android.hardware.usb.action.USB_ACCESSORY_ATTACHED" /> to the manifest file, still the same as before. -- View this message in context: http://mono-for-android.1047100.n5.nabble.com/GetAccessoryList-tp5710208p5710236.html Sent from the Mono for Android mailing list archive at Nabble.com.