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diff --git a/static/freebsd/man4/man4.powerpc/smu.4 3.html b/static/freebsd/man4/man4.powerpc/smu.4 3.html new file mode 100644 index 00000000..09c9d88c --- /dev/null +++ b/static/freebsd/man4/man4.powerpc/smu.4 3.html @@ -0,0 +1,113 @@ +<table class="head"> + <tr> + <td class="head-ltitle">SMU(4)</td> + <td class="head-vol">Device Drivers Manual (powerpc)</td> + <td class="head-rtitle">SMU(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">smu</code> — <span class="Nd">Apple System + Management Unit Driver</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 smu</code></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">smu</code> driver provides support for the + System Management Unit (SMU) found in many Apple G5 systems. This includes + most Power Macintosh G5 and all iMac G5 systems.</p> +<p class="Pp">The Apple SMU controller provides software power management and + thermal control functionality, and is responsible for managing system + cooling devices.</p> +</section> +<section class="Sh"> +<h1 class="Sh" id="HARDWARE"><a class="permalink" href="#HARDWARE">HARDWARE</a></h1> +<p class="Pp">Chips supported by the <code class="Nm">smu</code> driver + include:</p> +<p class="Pp"></p> +<ul class="Bl-bullet Bl-compact"> + <li>Apple System Management Unit</li> +</ul> +</section> +<section class="Sh"> +<h1 class="Sh" id="THERMAL_MANAGEMENT"><a class="permalink" href="#THERMAL_MANAGEMENT">THERMAL + MANAGEMENT</a></h1> +<p class="Pp">The <code class="Nm">smu</code> driver provides basic automatic + thermal management. Without a userspace daemon providing more advanced + control, the driver will attempt to maintain system temperatures in a + conservative range through coarse-grained control of system cooling devices + (see below). Automatic kernel-level thermal control will take over if more + than 3 seconds elapses between userspace cooling setting adjustments.</p> +</section> +<section class="Sh"> +<h1 class="Sh" id="SYSCTL_VARIABLES"><a class="permalink" href="#SYSCTL_VARIABLES">SYSCTL + VARIABLES</a></h1> +<p class="Pp">The <code class="Nm">smu</code> driver provides power management + services and thermal readout through a sysctl interface. The following + sysctls can be used to control the power management behavior and to examine + current system power and thermal conditions.</p> +<dl class="Bl-tag"> + <dt id="dev.smu._d.server_mode"><var class="Va">dev.smu.%d.server_mode</var></dt> + <dd>Restart after power failure behavior (1 causes system to reboot after + power cut, 0 causes system to remain off).</dd> + <dt id="dev.smu._d.target_temp"><var class="Va">dev.smu.%d.target_temp</var></dt> + <dd>Target system temperature, in degrees Celsius. The + <code class="Nm">smu</code> driver will attempt to adjust fans to maintain + the temperature of the warmest component in the system at or below this + level.</dd> + <dt id="dev.smu._d.critical_temp"><var class="Va">dev.smu.%d.critical_temp</var></dt> + <dd>System critical temperature, in degrees Celsius. If any component in the + system exceeds this temperature, the machine will be shut down within 500 + ms.</dd> + <dt id="dev.smu._d.fans._s.minrpm"><var class="Va">dev.smu.%d.fans.%s.minrpm</var></dt> + <dd>Minimum allowed speed for this fan.</dd> + <dt id="dev.smu._d.fans._s.maxrpm"><var class="Va">dev.smu.%d.fans.%s.maxrpm</var></dt> + <dd>Maximum allowed speed for this fan.</dd> + <dt id="dev.smu._d.fans._s.rpm"><var class="Va">dev.smu.%d.fans.%s.rpm</var></dt> + <dd>Current speed for this fan. The fan speed can be adjusted by changing this + sysctl. If more than 3 seconds elapses between fan speed adjustments, the + kernel will resume automatic control of the fan.</dd> + <dt id="dev.smu._d.sensors._s"><var class="Va">dev.smu.%d.sensors.%s</var></dt> + <dd>Current reading from this sensor. Four sensor types are supported. + Temperature sensors are in units of degrees Celsius, current sensors in + milliamps, voltage sensors in millivolts, and power sensors in + milliwatts.</dd> +</dl> +</section> +<section class="Sh"> +<h1 class="Sh" id="LED_INTERFACE"><a class="permalink" href="#LED_INTERFACE">LED + INTERFACE</a></h1> +<p class="Pp">The <code class="Nm">smu</code> driver provides an + <a class="Xr">led(4)</a> annunciator interface at + <span class="Pa">/dev/led/sleepled</span>.</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">acpi(4)</a>, <a class="Xr">led(4)</a>, + <a class="Xr">pmu(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">smu</code> device driver appeared in + <span class="Ux">FreeBSD 8.0</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">smu</code> driver was written by + <span class="An">Nathan Whitehorn</span> + <<a class="Mt" href="mailto:nwhitehorn@FreeBSD.org">nwhitehorn@FreeBSD.org</a>>.</p> +</section> +</div> +<table class="foot"> + <tr> + <td class="foot-date">February 22, 2010</td> + <td class="foot-os">FreeBSD 15.0</td> + </tr> +</table> |