[iMac] Fan Control

I have an 21.5-inch iMac from 2011 on which i recently installed LE. It works great, except that the fans go nutz. I have experienced this before, however i cobbeld together a script to set the fan speeds manually. It looks like this

and worked great on the prev linux distro i had installed. On LE the applesmc.768 path does not exist tho and i am unsure how to set the speed otherwise. I installed the pack with lm_sensors from the addon section but this does not help as sensors does not detect the fans. Any ideas on how to fix this?

Took me a bit cuz i was busy and macs can be a pain to get working with anything non apple approved buuut.. It worked. The applesmc now shows up in sensors and the script also works again. However, i have two questions. When i changed the config, I noticed that some config values were set to "=m" and some to "=y". What's the difference? I went with y as that seemed intuitive to me, but what does m do? The other thing is that the installed LE now is a devel version. Does updating from that work? I am planing to give this mac to my family and i want it to be easy to use. Not having automatic updates on what's a TV to them would be bad.

Thank you for the help and awsers. Nice to see this enabled for everyone aswell.