Thermal drivers

modulename: thermal_sys.ko

configname: CONFIG_THERMAL

Linux Kernel Configuration
└─>Device Drivers
└─>Thermal drivers
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
Thermal drivers offer a generic mechanism for
thermal management. Usually it's made up of one or more thermal
zones and cooling devices.
Each thermal zone contains its own temperature, trip points,
and cooling devices.
All platforms with ACPI or Open Firmware thermal support can use
this driver.
If you want this support, you should say Y here.

source code: