Advanced Configuration and Power Interface Specification

ACPI Software Programming Model
Name Description Heading
_DSD Device Specific Data– returns device-specific information. Section 6.2.5 page 299
_DSM Device Specific Method – executes device-specific functions. Section 9.14.1 page 531
_DSS Device Set State – sets the display device state. Section B.5.8 page 980
_DSW Device Sleep Wake – sets the sleep and wake transition Section 7.3.1 page 395
states for a device.
_DTI Device Temperature Indication – conveys native device Section 11.4.6 page 612
temperature to the platform.
_Exx Edge GPE – method executed as a result of a generalpurpose
Section 5.6.4.1 page 244
event.
_EC Embedded Controller – returns EC offset and query
Section 12.12 page 658
information.
_EDL Eject Device List – returns a list of devices that are dependent Section 6.3.1 page 332
on a device (docking).
_EJD Ejection Dependent Device – returns the name of dependent Section 6.3.2 page 333
(parent) device (docking).
_EJx Eject – begin or cancel a device ejection request (docking). Section 6.3.3 page 334
_END Endian-ness – Endian orientation of a UART SerialBus Section 19.6 page 785
connection, resource descriptor field
_EVT Event Method - Event method for GPIO-signaled events Section 5.6.5.3 page 249
numbered larger than 255.
_FDE Floppy Disk Enumerate – returns floppy disk configuration Section 9.9.1 page 514
information.
_FDI Floppy Drive Information – returns a floppy drive information Section 9.9.2 page 515
block.
_FDM Floppy Drive Mode – sets a floppy drive speed. Section 9.9.3 page 516
_FIF Fan Information – returns fan device information. Section 11.3.1.1 page 604
_FIX Fixed Register Resource Provider – returns a list of devices Section 6.2.5 page 299
that implement FADT register blocks.
_FLC Flow Control – Flow Control mechanism for a UART SerialBus Section 19.6 page 809
connection, resource descriptor field
_FPS Fan Performance States – returns a list of supported fan Section 11.3.1.2 page 605
performance states.
_FSL Fan Set Level – Control method that sets the fan device’s Section 11.3.1.3 page 606
speed level (performance state).
_FST Fan Status – returns current status information for a fan Section 11.3.1.4 page 606
device.
_GAI Get Averaging Interval – returns the power meter averaging Section 10.4.5 page 589
interval.
_GCP Get Capabilities – Returns the capabilities of a Time and Section 9.18.2 page 542
Alarm Control Method Device
_GHL Get Hardware Limit – returns the hardware limit enforced by Section 10.4.7 page 590
the power meter.
_GL Global Lock – OS-defined Global Lock mutex object. Section 5.7.1 page 269
Version 6.0 261