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mattmatteh
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Joined: 10 Mar 2004
Posts: 449
Location: near chicago

PostPosted: Tue Aug 09, 2005 8:52 pm    Post subject: ibook g4 fan Reply with quote

where is there information on how to control the fan ? i put the module in the kernel and the fan is on alot. i just put it as a module but not sure how to set it.

is there a way to find out how hot the chip is running in osx so it can run the same way in linux?

matt
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JoseJX
Retired Dev
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Joined: 28 Apr 2002
Posts: 2774

PostPosted: Tue Aug 09, 2005 10:34 pm    Post subject: Reply with quote

From the kernel module source:

Code:

module_param(limit_adjust, int, 0644);
MODULE_PARM_DESC(limit_adjust,"Adjust maximum temperatures (50 sensor1, 70 sensor2) "
                 "by N degrees.");

module_param(fan_speed, int, 0644);
MODULE_PARM_DESC(fan_speed,"Specify starting fan speed (0-255) "
                 "(default 64)");


So, there are two options: limit_adjust and fan_speed. These options can be set when loading the module.
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Fugee47
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Joined: 25 Nov 2004
Posts: 196
Location: Germany

PostPosted: Wed Aug 10, 2005 6:59 am    Post subject: Reply with quote

i load the module on system-startup this way:

therm_adt746x fan_speed=32 limit_adjust=6

Then the fan begins to work later on a less noisy basis.
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Cenrim
Tux's lil' helper
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Joined: 04 Dec 2004
Posts: 142
Location: Germany

PostPosted: Thu Aug 18, 2005 3:10 pm    Post subject: Reply with quote

to adjust the module parameters without unloading and loading the module again (or don't use it as a module at all) you can do
Code:

# echo 6 >> /sys/devices/temperatures/limit_adjust                   
# echo 32 >> /sys/devices/temperatures/specified_fan_speed

;)
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ruben
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Joined: 04 Jul 2003
Posts: 462

PostPosted: Thu Aug 18, 2005 10:36 pm    Post subject: Reply with quote

You could use XRG to see how hot the chip is running in osx.
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