The tpctl user-space tool, in conjunction with the thinkpad kernel module, provides access to some SMAPI functions on various ThinkPad models. This software is now obsolete because the modules no longer build under the latest versions of Linux.
On some relatively new ThinkPad models similar functionality is exposed through an ACPI interface. On some relatively new ThinkPad models a different set of SMAPI features is made available by the tp_smapi driver. On some models the SMAPI interface is not available at all.
Various power management options and hardware control. For details and usage, see the README.
Project Homepage / Availability
See the list of supported models.