Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
Return Value Information
Package {
Revision, // Integer – Current revision is: 0
ActiveRelationship[0] // Package
….
ActiveRelationship[n] // Package
}
Each ActiveRelationship sub-Package contains the elements described below:
Package {
SourceDevice,
TargetDevice,
Weight,
AC0MaxLevel,
AC1MaxLevel,
AC2MaxLevel,
AC3MaxLevel,
AC4MaxLevel,
AC5MaxLevel,
AC6MaxLevel,
AC7MaxLevel,
AC8MaxLevel,
AC9MaxLevel
}
// Object Reference to a Fan Device Object
// Object Reference to a Device Object
// Integer
// Integer
// Integer
// Integer
// Integer
// Integer
// Integer
// Integer
// Integer
// Integer
// Integer
Table 11-287 Thermal Relationship Package Values
Element Object Type Description
SourceDevice Reference The fan device that has an impact on the cooling of the device indicated
(to a device) by TargetDevice.
TargetDevice Reference The device that is impacted by the fan device indicated by SourceDevice.
(to a device)
Weight Integer Indicates the SourceDevice’s contribution to the platform’s TargetDevice
total cooling capability when the fans of all entries in the _ART with the
same target device are engaged at their highest (maximum capability)
performance state. This is represented as a percentage value (0-100).
AC0MaxLevel
AC1MaxLevel
Integer
(DWORD)
Integer
(DWORD)
Indicates the maximum fans speed level in percent (0-100) that OSPM
may engage on the SourceDevice when a temperature exceeds the
_AC0 trip point value.
A value of 0xFFFFFFFF in this field indicates that the SourceDevice is not
to be engaged for the trip point.
Indicates the maximum fans speed level in percent (0-100) that OSPM
may engage on the SourceDevice when a temperature exceeds the
_AC1 trip point value.
A value of 0xFFFFFFFF in this field indicates that the SourceDevice is not
to be engaged for the trip point.
610 April, 2015 Version 6.0