/* opens the currently attached USB accessory */
public ParcelFileDescriptor openAccessory(UsbAccessory accessory) {
UsbAccessory currentAccessory = mHandler.getCurrentAccessory();
if (currentAccessory == null) {
throw new IllegalArgumentException("no accessory attached");
}
if (!currentAccessory.equals(accessory)) {
String error = accessory.toString() + " does not match current accessory " + currentAccessory;
throw new IllegalArgumentException(error);
}
getCurrentSettings().checkPermission(accessory);
return nativeOpenAccessory();
}
/* returns the currently attached USB accessory */
public UsbAccessory getCurrentAccessory() {
return mHandler.getCurrentAccessory();
}
