android usb requestWait not return

Question

ByteBuffer byteBuffer = ByteBuffer.allocate(9);;    
UsbRequest request = new UsbRequest();
request.initialize(mConnection,mEndpointIntr);
boolean b = request.queue(byte         


        

Answer 1

On my own USB HID device with two endpoints (IN and OUT) connected to MK802, I encountered the same problem (queuing a request returned false). I had claimInterface called with false. Setting the following helped, I receive data alright.

c.claimInterface(device.getInterface(0), true);