title: Setup serial port on Virtualbox for working with Pyserial
body: <p>My host machine's running Ubuntu with Windows XP guest via Virtualbox. </p>
  
  <p>My Ubuntu host have one serial port(/dev/ttyS0), and now I want to use hyperterminal inside XP guest to send &amp; recieve data via serial port(COM0) to my Ubuntu host</p>
  
  <p>On the Ubuntu host I use pyserial to read &amp; write data to XP guest.</p>
  
  <p>How to setup Virtualbox for this case?</p>
  
  <p>Thanks!</p>