I'm new on this forum so first a hello from the Netherlands

Here is the thing. I'd like to connect the PhidgetsRFID 1024 to a tablet. It is a pretty custom tablet: rockchip-pt201 (micro USB).
I have an OTG cable connected. So far so good. The device is also "recognized" in Eclipse. I'm using this code snipped for that.
manager = (UsbManager) getSystemService(Context.USB_SERVICE);
deviceList = manager.getDeviceList();
When i instantiate the RFIDPhidget and set setAntennaOn(true) it throws the error: Device unattached.
Unfortunately my tablet doesn't have the correct permissions. All the efforts to push the android.hardware.usb.host.xml file have failed, no root access

So i'm looking for a solution, a different tablet, which will work instantly. Does any of you know which tablet will work if any (with micro USB)?
Regards,
Chamin Hardeman