PEP_PROCESSOR_PARK_PREFERENCE structure (pepfx.h)
The PEP_PROCESSOR_PARK_PREFERENCE structure indicates the preferences of the operating system and platform extension plug-in (PEP) regarding whether the specified processor should be parked to reduce power consumption.
Syntax
typedef struct _PEP_PROCESSOR_PARK_PREFERENCE {
PEPHANDLE Processor;
UCHAR PoPreference;
UCHAR PepPreference;
} PEP_PROCESSOR_PARK_PREFERENCE, *PPEP_PROCESSOR_PARK_PREFERENCE;
Members
Processor
A PEPHANDLE value that identifies the processor. The PEP supplied this handle in a previous PEP_DPM_REGISTER_DEVICE notification.
PoPreference
The operating system's parking preference for this processor. For more information, see Remarks.
PepPreference
The PEP's parking preference for this processor. For more information, see Remarks.
Remarks
The Processors member of the PEP_PPM_PARK_SELECTION structure is a pointer to an array of PEP_PROCESSOR_PARK_PREFERENCE structures.
The Processor and PoPreference members of the PEP_PROCESSOR_PARK_PREFERENCE structure contain input values that are supplied by the Windows power management framework when a PEP_NOTIFY_PPM_PARK_SELECTION notification is sent to the PEP. The PepPreference member contains an output value that the PEP writes to the structure in response to this notification.
The following table lists the three values that are defined for the PoPreference and PepPreference members.
| Parking preference | Value | Meaning |
|---|---|---|
| PROCESSOR_PARK_PREFERENCE_NONE | 0x0 | No preference. Either parked or unparked is okay. |
| PROCESSOR_PARK_PREFERENCE_PARKED | 0x1 | The operating system or PEP specifies that the processor should be parked. |
| PROCESSOR_PARK_PREFERENCE_UNPARKED | 0x2 | The operating system or PEP specifies that the processor should not be parked. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Supported starting with Windows 10. |
| Header | pepfx.h (include Pep_x.h) |