Advanced Configuration and Power Interface Specification

Advanced Configuration and Power Interface Specification
Name Description Heading
_CID
_CLS
_CPC
_CRS
_CRT
Compatible ID – returns a device’s Plug and Play Compatible
ID list.
Class Code – supplies OSPM with the PCI-defined class,
subclass and programming interface for a device. Optional.
Continuous Performance Control – declares an interface that
allows OSPM to transition the processor into a performance
state based on a continuous range of allowable values.
Current Resource Settings – returns the current resource
settings for a device.
Critical Temperature – returns the shutdown critical
temperature.
Section 6.1.2 page 279
Section 6.1.3 page 280
Section 8.4.7.1 page 477
Section 6.2.2 page 295
Section 11.4.4 page 612
_CSD C State Dependencies – returns a list of C-state
Section 8.4.2.2 page 432
dependencies.
_CST C States – returns a list of supported C-states. Section 8.4.2.1 page 429
_CWS
_DBT
_DCK
_DCS
Clear Wake Status – Clears the wake status of a Time and
Alarm Control Method Device.
Debounce Timeout -Debounce timeout setting for a GPIO
input connection, resource descriptor field
Dock – sets docking isolation. Presence indicates device is a
docking station.
Display Current Status – returns status of the display output
device.
Section 9.18.6 page 545
Section 19.6.54 page 843
Section 6.5.2 page 382
Section B.5.6 page 979
_DDC Display Data Current – returns the EDID for the display output Section B.5.5 page 979
device.
_DDN Dos Device Name – returns a device logical name. Section 6.1.4 page 281
_DEC Decode – device decoding type, resource descriptor field. Section 19.2.8 page 778
_DEP Operation Region Dependencies -- evaluates to a package
and designates device objects that OSPM should assign a
higher priority in start ordering due to future operation region
accesses.
Section 6.5.8 page 387
_DGS Display Graphics State – returns the current state of the output Section B.5.7 page 980
device.
_DIS Disable – disables a device. Section 6.2.3 page 296
_DLM Device Lock Mutex- Designates a mutex as a Device Lock Section 5.7.5 page 274
_DMA
_DOD
_DOS
_DPL
_DRS
Direct Memory Access – returns a device’s current resources
for DMA transactions.
Display Output Devices – enumerate all devices attached to
the display adapter.
Disable Output Switching – sets the display output switching
mode.
Device Selection Polarity - The polarity of the Device Selection
signal on a SPISerialBus connection, resource descriptor field
Drive Strength – Drive strength setting for a GPIO output
connection, resource descriptor field
Section 6.2.4 page 296
Section B.3.2 page 971
Section B.3.1 page 970
Section 19.6 page 785
Section 19.6.55 page 844
260 April, 2015 Version 6.0