[Mactel-linux-devel] Applesmc question: fans run too fast

[Jean-Baka Domelevo-E. <dom...@gm...>]

Hi,

On my MacBook Pro (Santa Rosa, Debian Sid, kernel 2.6.23.9-mactel),
the applesmc module bahaves strangely: the fans run too fast, even
when there is no real CPU activity on my machine.

Here is the output of a "modinfo applesmc" :

filename:       /lib/modules/2.6.23.9-mactel/kernel/drivers/hwmon/applesmc.ko
author:         Nicolas Boichat
description:    Apple SMC
license:        GPL v2
vermagic:       2.6.23.9-mactel SMP preempt mod_unload CORE2
depends:        input-polldev


And here is the script I use to lower the fan speed, somewhat hazardous (?):

#!/bin/bash
# Lowers both fans to 2000 rpm (?)
FANPATH=/sys/devices/platform/applesmc.768
echo 1 > $FANPATH/fan1_manual
echo 1 > $FANPATH/fan2_manual
echo 2000 > $FANPATH/fan1_output
echo 2000 > $FANPATH/fan2_output


As you can see, my applesmc control directory is named applesmc.768.

Do you have any idea why these fans want to take off?

Thanks,
   JB