PCI_PMCSR structure (wdm.h)
The PCI_PMCSR structure is used to report the contents of the device's power management control status register.
Syntax
typedef struct _PCI_PMCSR {
USHORT PowerState :2;
USHORT Rsvd1 :6;
USHORT PMEEnable :1;
USHORT DataSelect :4;
USHORT DataScale :2;
USHORT PMEStatus :1;
} PCI_PMCSR, *PPCI_PMCSR;
Members
PowerState
Indicates the power state of the device. This member can have the following values:
| Value | Meaning |
|---|---|
| 0x00 | Indicates that the device is in D0. |
| 0x01 | Indicates that the device is in D1. |
| 0x02 | Indicates that the device is in D2. |
| 0x03 | Indicates that the device is in D3. |
For more information about the power state register, see the PCI Power Management Specification.
Rsvd1
Reserved.
NoSoftReset
Rsvd2
PMEEnable
Indicates, when 1, that the device is enabled to assert the PME signal. When 0, the device is not enabled to assert the PME signal. For more information about the meaning of the PME Enable bit, see the PCI Power Management Specification.
DataSelect
Indicates which data is to be reported through the data register. For more information about the values that this member can hold, see the PCI Power Management Specification.
DataScale
Indicates the scaling factor used to interpret the value of the data register. For more information about the values that this member can hold, see the PCI Power Management Specification.
PMEStatus
Contains a one-bit value (either 0 or 1) that reports the value of the PMEStatus bit in the power management register. For more information about the values that this member can hold, see the PCI Power Management Specification.
Requirements
| Requirement | Value |
|---|---|
| Header | wdm.h (include Wdm.h, Miniport.h) |