dkms-acpi_call

Kernel module to call ACPI methods

A kernel module that enables you to call ACPI methods by writing the method name followed by arguments to /proc/acpi/call, for example to turn off discrete graphics card in a dual graphics environment (like NVIDIA Optimus). This version is intended for setting battery of ThinkPad notebook. tpacpi-bat supports ThinkPad T420(s)/T520/W520/X220 and newer models only.