title: Qt send full byte on serial port
body: <p>I have this simple code that use QtSerialPort:</p>
  
  <pre><code>char foo[] = {130,50,'\0'};
  serial-&gt;write(foo);
  </code></pre>
  
  <p>The result on my serial is {2, 50}. I think that che biggest number that I can send is 128 (char go from -128 to 128). Where is the manner for send number from 0 to 255? I try to use unsigned char but the method "write" don't work with it. The same problem also appear with QByteArray.</p>
  
  <p>Thankyou all.</p>