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control cpu speed and voltage using 2.6 kernel interface

This simple client controls CPU speed and voltage using the sysfs interface to the CPUFreq driver in v2.6 Linux kernels. It does not depend on APM or ACPI, and it doesn't try to do anything other than control the CPU.

The name is somewhat misleading, as any CPUfreq capable processor will work, not just those from AMD. However, it works better on CPUs that support more than two speed steps, like those with AMD's PowerNow! or Intel's Pentium M series.

This daemon is less complicated than cpufreqd or cpudyn, at the cost of absolutely depending on a 2.6 kernel with the userspace governor and sysfs support enabled.

Package version:1.00-1.1+b1


Some notes on preparing a system for use with powernowd.

The requirements for powernowd are really minimal. If you use a prebuilt 2.6
kernel package, all the required kernel modules are included.  You just need
to ensure they are loaded (cpufreq_userspace, and on my system also 
speedstep_centrino).  One way to do this is to add them to /etc/modules, which
will cause them to load at boot time (se


PowerNow Daemon, (c) 2003-2008 John Clemens
Daemon to control the speed and voltage of CPUs.

This is a simple client to the CPUFreq driver that uses Linux kernel v2.5/v2.6 
sysfs interface.  You need a supported CPU and a kernel that supports 
sysfs to run this daemon.  The name is somewhat misleading, as this will work
with any CPUfreq capable processor, not just processors supporting AMD's 


POWERNOWD(1)                                            POWERNOWD(1)

       powernowd - control the speed and voltage of cpus

       powernowd [options]

       This  is  a simple client to the cpufreq driver, and uses the
       sysfs interface in Linux kernel version 2.6.  You need a sup‐
       ported cpu, and a kernel that supports sysfs to run this dae‐


powernowd (1.00-1.1+b1) unstable; urgency=low

  * Binary-only non-maintainer upload for mipsel; no 


This package was debianized by Bdale Garbee <> on
Mon,  3 Nov 2003 17:36:48 -0700.


Browse inside powernowd_1.00-1.1+b1_mipsel.deb

         [DIR]DEBIAN/ (6)  65535+ mirrors
         [DIR]etc/ (2)  65535+ mirrors
         [DIR]usr/ (2)  65535+ mirrors

Download powernowd_1.00-1.1+b1_mipsel.deb

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