static/freebsd/man4/chvgpio.4 3.html


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<table class="head">
  <tr>
    <td class="head-ltitle">CHVGPIO(4)</td>
    <td class="head-vol">Device Drivers Manual</td>
    <td class="head-rtitle">CHVGPIO(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">chvgpio</code> &#x2014; <span class="Nd">Intel
    Cherry View SoC GPIO controller</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">device gpio</code>
  <br/>
  <code class="Cd">device chvgpio</code></p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp"><code class="Nm">chvgpio</code> supports the GPIO controller that
    can be found in Intel's Cherry View SoC family.</p>
<p class="Pp">The Cherry View SoC has 5 banks of GPIO pins, NORTH, EAST,
    SOUTHEAST, SOUTHWEST and VIRTUAL. All but VIRTUAL are exposed to userland as
    <span class="Pa">/dev/gpiocN</span>, where N is 0-3. Pins in each bank are
    pre-named to match names in the Intel&#x00AE; Atom&#x2122; Z8000 Processor
    Series Vol 2</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">gpio(3)</a>, <a class="Xr">gpio(4)</a>,
    <a class="Xr">gpioctl(8)</a></p>
<p class="Pp"><cite class="Rs"><span class="RsT">Intel&#x00AE; Atom&#x2122;
    Z8000 Processor Series Vol 1</span>.</cite></p>
<p class="Pp"><cite class="Rs"><span class="RsT">Intel&#x00AE; Atom&#x2122;
    Z8000 Processor Series Vol 2</span>.</cite></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">chvgpio</code> manual page first appeared in
    <span class="Ux">FreeBSD 12</span>.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
<p class="Pp">This driver and man page were written by <span class="An">Tom
    Jones</span>
    &lt;<a class="Mt" href="mailto:tj@enoti.me">tj@enoti.me</a>&gt;.</p>
</section>
</div>
<table class="foot">
  <tr>
    <td class="foot-date">November 17, 2017</td>
    <td class="foot-os">FreeBSD 15.0</td>
  </tr>
</table>