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<table class="head">
<tr>
<td class="head-ltitle">AIBS(4)</td>
<td class="head-vol">Device Drivers Manual</td>
<td class="head-rtitle">AIBS(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">aibs</code> — <span class="Nd">ASUSTeK AI
Booster ACPI ATK0110 voltage, temperature and fan sensor</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 line
in your kernel configuration file:</p>
<div class="Bd Pp Bd-indent"><code class="Cd">device aibs</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>aibs_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">aibs</code> driver provides support for the
voltage, temperature and fan sensors available through the ATK0110 ASOC ACPI
device on ASUSTeK motherboards. The number of sensors of each type, as well
as the description of each sensor, varies according to the motherboard.</p>
<p class="Pp">The driver supports an arbitrary set of sensors, provides
descriptions regarding what each sensor is used for, and reports the current
values as well as the supposed range specifications of each sensor's input
as defined by the motherboard manufacturer through ACPI.</p>
<p class="Pp">The range specifications are as follows:</p>
<ul class="Bl-bullet">
<li>Voltage sensors have a lower and an upper range specification.</li>
<li>Temperature sensors have two upper specifications.</li>
<li>Fan sensors may either have only the lower specification, or, depending on
the DSDT, one lower and one upper specification.</li>
</ul>
<p class="Pp">Sensor readings and the range specifications are made available
through the <a class="Xr">sysctl(3)</a> interface, and can be monitored with
<a class="Xr">sysctl(8)</a>. For example, on an ASUS V3-P5G965 barebone:</p>
<div class="Bd Pp Bd-indent Li">
<pre>> sysctl dev.aibs.0.{volt,temp,fan}
dev.aibs.0.volt.0: 1192 850 1600
dev.aibs.0.volt.1: 3312 2970 3630
dev.aibs.0.volt.2: 5017 4500 5500
dev.aibs.0.volt.3: 12302 10200 13800
dev.aibs.0.temp.0: 28.0C 80.0C 95.0C
dev.aibs.0.temp.1: 55.0C 60.0C 95.0C
dev.aibs.0.fan.0: 878 600 7200
dev.aibs.0.fan.1: 0 700 7200
> sysctl -d dev.aibs.0.{volt,temp,fan}
dev.aibs.0.volt:
dev.aibs.0.volt.0: Vcore Voltage
dev.aibs.0.volt.1: +3.3 Voltage
dev.aibs.0.volt.2: +5 Voltage
dev.aibs.0.volt.3: +12 Voltage
dev.aibs.0.temp:
dev.aibs.0.temp.0: CPU Temperature
dev.aibs.0.temp.1: MB Temperature
dev.aibs.0.fan:
dev.aibs.0.fan.0: CPU FAN Speed
dev.aibs.0.fan.1: CHASSIS FAN Speed</pre>
</div>
<p class="Pp">Generally, sensors provided by the <code class="Nm">aibs</code>
driver may also be supported by certain other drivers or utilities that
access the ISA / LPC or I2C / SMBus devices directly. The precise collection
of <code class="Nm">aibs</code> sensors is comprised of the sensors
specifically utilised in the motherboard design, which may be supported
through a combination of one or more physical hardware monitoring chips.</p>
<p class="Pp">The <code class="Nm">aibs</code> driver, however, provides the
following advantages when compared to the native hardware monitoring drivers
or other utilities:</p>
<ul class="Bl-bullet">
<li>Sensor values from <code class="Nm">aibs</code> are expected to be more
reliable. For example, voltage sensors in many hardware monitoring chips
can only sense voltage from 0 to 2 or 4 volts, and the excessive voltage
is removed by the resistors, which may vary with the motherboard and with
the voltage that is being sensed. In <code class="Nm">aibs</code>, the
required resistor factors are provided by the motherboard manufacturer
through ACPI; in the native drivers, the resistor factors are encoded into
the driver based on the chip manufacturer's recommendations. In essence,
sensor values from <code class="Nm">aibs</code> are very likely to be
identical to the readings from the Hardware Monitor screen in the
BIOS.</li>
<li>Sensor descriptions from <code class="Nm">aibs</code> are more likely to
match the markings on the motherboard.</li>
<li>Sensor range specifications are supported by <code class="Nm">aibs</code>.
The range specification is reported for each individual sensor as
suggested by the motherboard manufacturer. For example, the threshold for
the CPU temperature sensor is likely to be significantly higher than that
for the chassis temperature sensor.</li>
<li>Support for newer chips in <code class="Nm">aibs</code>. Newer chips may
miss a native driver, but should be supported through
<code class="Nm">aibs</code> regardless.</li>
</ul>
</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">sysctl(3)</a>, <a class="Xr">acpi(4)</a>,
<a class="Xr">sysctl(8)</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">aibs</code> driver first appeared in
<span class="Ux">OpenBSD 4.7</span>, <span class="Ux">DragonFly 2.5</span>,
<span class="Ux">NetBSD 6.0</span> and <span class="Ux">FreeBSD
9.0</span>.</p>
<p class="Pp">An earlier version of the driver,
<code class="Nm">acpi_aiboost</code>, first appeared in
<span class="Ux">FreeBSD 7.0</span> and <span class="Ux">NetBSD
5.0</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">aibs</code> driver was written for
<span class="Ux">OpenBSD</span>, <span class="Ux">DragonFly</span>,
<span class="Ux">NetBSD</span> and <span class="Ux">FreeBSD</span> by
<span class="An">Constantine A. Murenin</span>
<<a class="Mt" href="mailto:cnst@FreeBSD.org">cnst@FreeBSD.org</a>>,
Raouf Boutaba Research Group, David R. Cheriton School of Computer Science,
University of Waterloo.</p>
<p class="Pp">An earlier version of the driver, named
<code class="Nm">acpi_aiboost</code>, was written for
<span class="Ux">FreeBSD</span> by <span class="An">Takanori
Watanabe</span>.</p>
</section>
</div>
<table class="foot">
<tr>
<td class="foot-date">April 4, 2010</td>
<td class="foot-os">FreeBSD 15.0</td>
</tr>
</table>
|
