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Advanced Configuration & Power Interface (ACPI)

The Advanced Configuration and Power Interface (ACPI) is an open industry specification co-developed by Hewlett-Packard, Intel, Microsoft, Phoenix, and Toshiba. It establishes industry-standard interfaces for OS-directed configuration and power management on notebooks, desktops, and servers. The ACPI specification is available for download from the ACPI website.

Source code

An ACPI reference implementation in source code form, the ACPI Component Architecture (ACPICA), is available for free download from the ACPICA website. This source code provides an OS-independent implementation of ACPI that can be easily adapted to any host operating system.

ACPI-related documents

This describes Intel® processor driver capabilities bit definitions.