title: Create serial communication in NetBSD
body: <blockquote>
    <p>I'm trying to create serial communication in NetBSD. This
    communication will connect the computer with  a controller via RS-485.</p>
  </blockquote>
  
  <p>The problem is that I don't know if it necessary some configuration or driver to do it.</p>
  
  <p>Specifically, the communication will be through the RS-485 port. I've tried to use /dev/tty01, but there are no pulses in serial output.</p>
  
  <p>Are there some configurations , drivers or codes necessary to open, send and receive serial data in NetBSD?</p>
  
  <p>I didn't have sucess until now.</p>
  
  <p>Thanks</p>