PCI_EXPRESS_ROOT_STATUS_REGISTER union (ntddk.h)
The PCI_EXPRESS_ROOT_STATUS_REGISTER structure describes a PCI Express (PCIe) root status register of a PCIe capability structure.
Syntax
typedef union _PCI_EXPRESS_ROOT_STATUS_REGISTER {
struct {
ULONG PMERequestorId :16;
ULONG PMEStatus :1;
ULONG PMEPending :1;
ULONG Rsvd :14;
};
ULONG AsULONG;
} PCI_EXPRESS_ROOT_STATUS_REGISTER, *PPCI_EXPRESS_ROOT_STATUS_REGISTER;
Members
DUMMYSTRUCTNAME
DUMMYSTRUCTNAME.PMERequestorId
A PCI_EXPRESS_PME_REQUESTOR_ID structure that describes the power management event (PME) requester identifier of the last PME requester.
DUMMYSTRUCTNAME.PMEStatus
A single bit that indicates that a power management event (PME) was asserted by the requester identified by the PMERequestorId member.
DUMMYSTRUCTNAME.PMEPending
A single bit that indicates that another power management event (PME) is pending while the PMEStatus bit is set.
DUMMYSTRUCTNAME.Rsvd
Reserved.
AsULONG
A ULONG representation of the contents of the PCI_EXPRESS_ROOT_STATUS_REGISTER structure.
Remarks
The PCI_EXPRESS_ROOT_STATUS_REGISTER structure is available in Windows Server 2008 and later versions of Windows.
A PCI_EXPRESS_ROOT_STATUS_REGISTER structure is contained in the PCI_EXPRESS_CAPABILITY structure.
Requirements
Requirement | Value |
---|---|
Header | ntddk.h (include Ntddk.h, Miniport.h) |