[Soekris] Power management on a Net4801

[Arnau Sanchez]

Hi,

I have a Net4801 with Linux 2.6.17 and I wanted to add some power management to 
save power. Taking a look on that manual:

http://www.brixandersen.dk/papers/net4801/net4801.html

I saw that there is a feature called "Suspend Modulation":

3.1.1. Suspend Modulation

To enable the Suspend Modulation feature of the Geode SC1100 processor you need 
the kernel options listed below.

     * CPU Frequency scaling (CONFIG_CPU_FREQ)
     * Cyrix MediaGX/NatSemi Geode Suspend Modulation (CONFIG_X86_GX_SUSPMOD)

I use a debian kernel 2.6.17 with these options already enabled, that way:

CONFIG_CPU_FREQ=y
CONFIG_X86_GX_SUSPMOD=m

But when I try to install the module it fails:

# modprobe gx-suspmod
FATAL: Error inserting gx_suspmod 
(/lib/modules/2.6.17-voyage/kernel/arch/i386/kernel/cpu/cpufreq/gx-suspmod.ko): 
No such device

Anyone knows the reason?

I want to use this feature to reduce power consumption on night, but perhaps is 
there any better way to achieve this...

thanks very much!

arnau