asus-fan

ASUS fan(s) control kernel module. The following Notebooks should be supported - be aware that it's pre alpha

Single Fan	Two Fans (NVIDIA)
UX21E	UX32VD
UX31E	UX42VS
UX21A	UX52VS
UX31A	U500VZ
UX32A	NX500
UX301LA
UX302LA
N551JK
N56JN

Quickstart

• Build - just run make inside the directory
• Install - run sudo make install inside the directory
• Load - simply as usual:

modprobe asus_fan

• Interface - the fan(s) is/are exposed as hwmon, thus available in:

/sys/class/hwmon/hwmonX

• Monitor Fan speed -simply use xsensors for graphical, or sensors for console monitoring

- **Set Fan Speed** - write anything from 0 to 255 to ```pwmX```, like:
```bash
echo 123 > ${fpath}/pwmX   # set to 123
echo 0 > ${fpath}/pwmX     # switch fan off (DANGEROUS!)
echo 255 > ${fpath}/pwmX   # set to max speed

• ATTENTION - the fan is now in manual mode - do not burn your machine!
• Set Auto-Fan(s): to reactivate the automatic fan control write "256" to cur_state:

echo 256 > ${fpath}/pwmX   # reset to auto-mode (always for all fans)

• fancontrol - There is a script called "fancontrol" that can be configured according to temperature source, fans to control, minimum and maximum temperature... thats done by "pwmconfig" Nevertheless that script did it worse for me than the original controller - thus you can tell it to stop the fan completely...

-Max fan speed- There is an additional file for controling the maximum fan speed. It's r/w and controls both, automatic mode and manual mode maximum speed. Value range: 0-255 reset value:256

TODOs:

• as a more general aproach: remove check for model name but only verfy existance of acpi functions
• do a code review and clean it up
• check with more models and the dual fan models
• add an included fan controller
• submit an upstream patch - any howtos?? wtf, write acpi-devel kernel-mailinglist ??

THANKS TO:

• To Felipe Contreras (felipec) for providing the initial version (https://gist.github.com/felipec/6169047)
• To Markus Meissner (daringer) for the asus_fan version with "thermal" interface - the hwmon version is a port of that one