Using Android to Communicate with a USB HID Device

Question

I am new to USB and to Android so please forgive me if I don\'t explain myself clearly.

I have a USB HID device that I can communicate with in Windows. I am trying

Answer 1

You can get a full list of the details of interfaces and endpoint by using the following:

UsbManager mManager = (UsbManager) getSystemService(Context.USB_SERVICE);
HashMap deviceList = mManager.getDeviceList();
Iterator deviceIterator = deviceList.values().iterator();

while (deviceIterator.hasNext())
    {
        UsbDevice device = deviceIterator.next();
        Log.i(TAG,"Model: " + device.getDeviceName());
        Log.i(TAG,"ID: " + device.getDeviceId());
        Log.i(TAG,"Class: " + device.getDeviceClass());
        Log.i(TAG,"Protocol: " + device.getDeviceProtocol());
        Log.i(TAG,"Vendor ID " + device.getVendorId());
        Log.i(TAG,"Product ID: " + device.getProductId());
        Log.i(TAG,"Interface count: " + device.getInterfaceCount());
        Log.i(TAG,"---------------------------------------");
   // Get interface details
        for (int index = 0; index < device.getInterfaceCount(); index++)
        {
        UsbInterface mUsbInterface = device.getInterface(index);
        Log.i(TAG,"  *****     *****");
        Log.i(TAG,"  Interface index: " + index);
        Log.i(TAG,"  Interface ID: " + mUsbInterface.getId());
        Log.i(TAG,"  Inteface class: " + mUsbInterface.getInterfaceClass());
        Log.i(TAG,"  Interface protocol: " + mUsbInterface.getInterfaceProtocol());
        Log.i(TAG,"  Endpoint count: " + mUsbInterface.getEndpointCount());
    // Get endpoint details 
            for (int epi = 0; epi < mUsbInterface.getEndpointCount(); epi++)
        {
            UsbEndpoint mEndpoint = mUsbInterface.getEndpoint(epi);
            Log.i(TAG,"    ++++   ++++   ++++");
            Log.i(TAG,"    Endpoint index: " + epi);
            Log.i(TAG,"    Attributes: " + mEndpoint.getAttributes());
            Log.i(TAG,"    Direction: " + mEndpoint.getDirection());
            Log.i(TAG,"    Number: " + mEndpoint.getEndpointNumber());
            Log.i(TAG,"    Interval: " + mEndpoint.getInterval());
            Log.i(TAG,"    Packet size: " + mEndpoint.getMaxPacketSize());
            Log.i(TAG,"    Type: " + mEndpoint.getType());
        }
        }
    }
    Log.i(TAG," No more devices connected.");
}