title: How to change the watchdog timer in linux embedded
body: <p>I have to use the linux watchdog driver (/dev/watchdog). It works great, I write an character like this:</p>
  
  <pre><code> echo 1 &gt; /dev/watchdog
  </code></pre>
  
  <p>And the watchdog start and after an about 1 minute, the system reboot.</p>
  
  <p>The question is, how can I change the timeout? I have to change the time interval in the driver?</p>