Hardware Dev Center

Industry Initiatives for Power Management

The OnNow initiative defines hardware and software support required for power management.

The Advanced Configuration and Power Interface Specification, part of the OnNow initiative, defines a hardware-level interface that enables operating systems to implement power management in a consistent, platform-independent way.

A Device Class Power Management Reference Specification is available for each common device class, such as audio or communications devices. Each of these specifications defines power management requirements for a class of device. Driver writers should refer to these specifications, available through the ACPI / Power Management website, for device-specific details.



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