Description:

ThinkPad laptops include a proprietary interface called SMAPI BIOS
(System Management Application Program Interface) which provides some
hardware control functionality that is not accessible by other means.

This driver exposes some features of the SMAPI BIOS through a sysfs
interface. It is suitable for newer models, on which SMAPI is invoked
through IO port writes.

WARNING:
This driver uses undocumented features and direct hardware access.
It thus cannot be guaranteed to work, and may cause arbitrary damage
(especially on models it wasn't tested on).

NOTE:
This package replaces module hdaps from upstream kernel with an
improved and tp_smapi compatible one. See the documentation.