Read from Rfid reader and get USB error 1: Transfer error on interrupt endpoint: Input/Output Error

[tyrion9]

Environment:

• OS: Windows 10 64bit
• Java version Oracle Java 8
• usb4java version 1.3.0

Bug description
I want to read data from Rfid Reader, all procedures is ok, but when pipe.syncSubmit(buffer);. I catched an error: javax.usb.UsbPlatformException: USB error 1: Transfer error on interrupt endpoint: Input/Output Error

Reproduction
`public static void main(String[] args) throws UsbException {
UsbHub hub = UsbHostManager.getUsbServices().getRootUsbHub();
UsbDevice selectedUsb = null;
UsbInterface iFace = null;

    for (UsbDevice device : (List<UsbDevice>) hub.getAttachedUsbDevices()) {
        UsbDeviceDescriptor desc = device.getUsbDeviceDescriptor();
        System.out.println(desc.idProduct() + "." + desc.idVendor());
        if (desc.idProduct() == idProduct && desc.idVendor() == idVendor)
            selectedUsb = device;
    }

    UsbConfiguration configuration = selectedUsb.getActiveUsbConfiguration();
    System.out.println(selectedUsb.getUsbDeviceDescriptor());

    final UsbPipe pipe;
    UsbPipe pipeTmp = null;
    int length = 0;

    for (Object i : selectedUsb.getActiveUsbConfiguration().getUsbInterfaces()) {
        iFace = (UsbInterface) i;
        iFace.claim(new UsbInterfacePolicy()
        {
            @Override
            public boolean forceClaim(UsbInterface usbInterface)
            {
                return true;
            }
        });
        for (Object e : iFace.getUsbEndpoints()) {
            UsbEndpoint endp = (UsbEndpoint) e;
            if (endp.getDirection() == UsbConst.ENDPOINT_DIRECTION_IN) {
                pipeTmp = endp.getUsbPipe();
                break;
            }
        }
    }

    pipe = pipeTmp;
    pipe.open();

    byte[] buffer = new byte[8];
    pipe.syncSubmit(buffer);
}

`.

[tyrion9]

It seems my rfid reader (http://www.sycreader.com/index.php/en/walkthroughmetaldetector/317.html) device is not working with libusb driver. I install Zadig to replace default windows driver (HidUsb (v6.1) with libusb 1.3 driver and exam the device that is not working properly.

usb4java uses native libusb 1.0, I think it can't work.

[bbrand84]

I got that error when I set up my byte buffer too small. To fix this issue, I set it to the maximum size that I got from the endpoint description of the reading endpoint (ENDPOINT_DIRECTION_IN, 0x81), instead of 4 bytes (8 in your example) that I had the impression would be enough to contain the answer. Hope that helps some people.