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Diffstat (limited to 'static/freebsd/man4/pcf8574.4 3.html')
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diff --git a/static/freebsd/man4/pcf8574.4 3.html b/static/freebsd/man4/pcf8574.4 3.html deleted file mode 100644 index 0aea0ef5..00000000 --- a/static/freebsd/man4/pcf8574.4 3.html +++ /dev/null @@ -1,79 +0,0 @@ -<table class="head"> - <tr> - <td class="head-ltitle">PCF8574(4)</td> - <td class="head-vol">Device Drivers Manual</td> - <td class="head-rtitle">PCF8574(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">pcf8574</code> — <span class="Nd">driver - for the PCF8574 8-bit I2C IO expander</span></p> -</section> -<section class="Sh"> -<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1> -<p class="Pp">To compile this driver into the kernel, place the following lines - in your kernel configuration file:</p> -<div class="Bd Pp Bd-indent"><code class="Cd">device pcf8574</code> -<br/> -<code class="Cd">device gpio</code> -<br/> -<code class="Cd">device iicbus</code></div> -<p class="Pp">Alternatively, to load the driver as a module at boot time, place - the following line in <a class="Xr">loader.conf(5)</a>:</p> -<div class="Bd Pp Bd-indent Li"> -<pre>pcf8574_load="YES"</pre> -</div> -</section> -<section class="Sh"> -<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1> -<p class="Pp">The <code class="Nm">pcf8574</code> driver provides - <a class="Xr">gpiobus(4)</a> control over 8 GPIO pins. The pins are - quasi-bidirectional. Only low output can be actively driven. High output is - equivalent to input.</p> -<p class="Pp">On an <a class="Xr">FDT(4)</a> based system the following - properties must be set:</p> -<dl class="Bl-tag"> - <dt id="compatible"><var class="Va">compatible</var></dt> - <dd>Must be set to "nxp,pcf8574".</dd> - <dt id="reg"><var class="Va">reg</var></dt> - <dd>The I2C address of <code class="Nm">pcf8574</code>.</dd> -</dl> -<p class="Pp">The DTS part for a <code class="Nm">pcf8574</code> device usually - looks like:</p> -<div class="Bd Pp Li"> -<pre>/ { - - ... - pcf8574@27 { - compatible = "nxp,pcf8574"; - reg = <0x27>; - }; -};</pre> -</div> -</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">fdt(4)</a>, <a class="Xr">gpiobus(4)</a>, - <a class="Xr">iicbus(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">pcf8574</code> driver and this manual page - was written by <span class="An">Andriy Gapon</span> - <<a class="Mt" href="mailto:avg@FreeBSD.org">avg@FreeBSD.org</a>>.</p> -</section> -<section class="Sh"> -<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1> -<p class="Pp">The <code class="Nm">pcf8574</code> driver does not support the - input change interrupt that the hardware provides.</p> -</section> -</div> -<table class="foot"> - <tr> - <td class="foot-date">November 6, 2021</td> - <td class="foot-os">FreeBSD 15.0</td> - </tr> -</table> |
