- Update config files: CONFIG_THERMAL=y
    
    The generic thermal module is used by several ACPI components
    (processor, fan, thermal and video) and a few other drivers. So
    in practice it will end up being loaded on almost all systems
    which support ACPI. It is small so build it into the kernel to
    improve boot speed on all ACPI-enabled architectures (i386,
    x86_64 and ia64.)