Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
Hex value
0x82
0x83
0x84
0x85-0xBF
Description
Throttling Present Capabilities Changed. Used to notify OSPM that the number of
supported processor throttling states has changed. This notification causes OSPM to reevaluate
the _TPC object. See Section 8, “Processor Configuration and Control,” for more
information.
Guaranteed Changed. Used to notify OSPM that the value of the CPPC Guaranteed
Register has changed.
Minimum Excursion. Used to notify OSPM that an excursion to CPPC Minimum has
occurred.
Reserved.
Table 5-152 User Presence Device Notification Values
Hex value
0x80
0x81-0xBF
Description
User Presence Changed. Used to notify OSPM that a meaningful change in user presence
has occurred, causing OSPM to re-evaluate the _UPD object.
Reserved.
Table 5-153 Ambient Light Sensor Device Notification Values
Hex value
0x80
0x81
0x82
0x83-0xBF
Description
ALS Illuminance Changed. Used to notify OSPM that a meaningful change in ambient light
illuminance has occurred, causing OSPM to re-evaluate the _ALI object.
ALS Color Temperature Changed. Used to notify OSPM that a meaningful change in
ambient light color temperature or chromaticity has occurred, causing OSPM to re-evaluate
the _ALT and/or _ALC objects.
ALS Response Changed. Used to notify OSPM that the set of points used to convey the
ambient light response has changed, causing OSPM to re-evaluate the _ALR object.
Reserved.
Table 5-154 Power Meter Object Notification Values
Hex value
0x80
0x81
0x82
0x83
0x84
0x85-0xBF
Description
Power Meter Capabilities Changed. Used to notify OSPM that the power meter information
has changed.
Power Meter Trip Points Crossed. Used to notify OSPM that one of the power meter trip
points has been crossed.
Power Meter Hardware Limit Changed. Used to notify OSPM that the hardware limit has
been changed by the platform.
Power Meter Hardware Limit Enforced. Used to notify OSPM that the hardware limit has
been enforced by the platform.
Power Meter Averaging Interval Changed. Used to notify OSPM that the power averaging
interval has changed.
Reserved.
254 April, 2015 Version 6.0