static/netbsd/man4/pwdog.4 4.html


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<table class="head">
  <tr>
    <td class="head-ltitle">PWDOG(4)</td>
    <td class="head-vol">Device Drivers Manual</td>
    <td class="head-rtitle">PWDOG(4)</td>
  </tr>
</table>
<div class="manual-text">
<section class="Sh">
<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<p class="Pp"><code class="Nm">pwdog</code> &#x2014; <span class="Nd">Quancom
    PWDOG1 watchdog timer device</span></p>
</section>
<section class="Sh">
<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<p class="Pp"><code class="Cd">pwdog0 at pci?</code></p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp">The <code class="Nm">pwdog</code> driver provides support for
    Quancom PWDOG1 boards.</p>
<p class="Pp">If the kernel crashes, the watchdog timer is not reset and the
    system will reboot (assuming a proper connection is made between the PWDOG1
    and the motherboard). Alternatively, the watchdog can be reinitialized via a
    userland process which ensures that process scheduling, not just kernel
    timeout processing, is still taking place.</p>
<p class="Pp">The timeout period of the PWDOG1 card is set using DIP switches
    and cannot be changed by software.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
  ALSO</a></h1>
<p class="Pp"><a class="Xr">intro(4)</a>, <a class="Xr">pci(4)</a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
<p class="Pp">The <code class="Nm">pwdog</code> driver first appeared in
    <span class="Ux">OpenBSD 4.1</span> and <span class="Ux">NetBSD
  6.0</span>.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
<p class="Pp">The <code class="Nm">pwdog</code> driver was written by
    <span class="An">Marc Balmer</span>
    &lt;<a class="Mt" href="mailto:mbalmer@NetBSD.org">mbalmer@NetBSD.org</a>&gt;.</p>
</section>
</div>
<table class="foot">
  <tr>
    <td class="foot-date">August 11, 2011</td>
    <td class="foot-os">NetBSD 10.1</td>
  </tr>
</table>