Hi!
I am trying an USB host connection, and so far I've managed to make
connection with a interrupt endpoint. The problem lays on trying to read
data from this endpoint. Everytime i call request.queue the application
crash. The code is as folllows:
@Override
public void run() {
// STARTS EXECUTING THE CONNECTION
ByteBuffer buffer = ByteBuffer.allocate(5);
// read data from the interrupt endpoint. For IN endpoints,
// the endpoint will attempt to read the given number of bytes
// into the specified buffer.
UsbRequest request = new UsbRequest();
request.initialize( connection, ep );
while (true){
textView6.setVisibility(View.VISIBLE);
// queue a request on the interrupt endpoint
request.queue(buffer, 5);
// requestWait() a completed USB request, or null if an error occurred
if (connection.requestWait() == request) {
byte[] data = buffer.array();
String str = new String( data);
textView6.setText( str );
} else {
Toast toast = Toast.makeText(getApplicationContext(), "Request for data
failed.", Toast.LENGTH_SHORT);
toast.show();
}
}
}
}
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