The ACPI

As of October 2013, the ACPI Specification is developed and maintained by the UEFI Forum. The most up to date version of the specification is available from the UEFI Forum web site. Current links for related documents and specifications are maintained on the UEFI Forum site. Information presented here remains for historical reference purposes only.... Please follow this link for definitive information about the current state of ACPI. ACPI establishes industry-standard interfaces enabling OS-directed configuration, power management, and thermal management of mobile, desktop, and server platforms. When first published in 1999, ACPI evolved an existing collection of power management BIOS code, Advanced Power Management (APM) application programming interfaces (APIs), PNPBIOS APIs, and Multiprocessor Specification (MPS) tables into a well-defined power management and configuration interface specification. The specification enables new power management technologies to evolve independently in operating systems and hardware while ensuring that they continue to work together.Read More