PCI_EXPRESS_LINK_CAPABILITIES_REGISTER union

The PCI_EXPRESS_LINK_CAPABILITIES_REGISTER structure describes a PCI Express (PCIe) link capabilities register of a PCIe capability structure.

Syntax

typedef union _PCI_EXPRESS_LINK_CAPABILITIES_REGISTER {
  struct {
    ULONG MaximumLinkSpeed  :4;
    ULONG MaximumLinkWidth  :6;
    ULONG ActiveStatePMSupport  :2;
    ULONG L0sExitLatency  :3;
    ULONG L1ExitLatency  :3;
    ULONG ClockPowerManagement  :1;
    ULONG SurpriseDownErrorReportingCapable  :1;
    ULONG DataLinkLayerActiveReportingCapable  :1;
    ULONG Rsvd  :3;
    ULONG PortNumber  :8;
  };
  ULONG  AsULONG;
} PCI_EXPRESS_LINK_CAPABILITIES_REGISTER, *PPCI_EXPRESS_LINK_CAPABILITIES_REGISTER;

Members

DUMMYSTRUCTNAME

DUMMYSTRUCTNAME.MaximumLinkSpeed

DUMMYSTRUCTNAME.MaximumLinkWidth

DUMMYSTRUCTNAME.ActiveStatePMSupport

DUMMYSTRUCTNAME.L0sExitLatency

DUMMYSTRUCTNAME.L1ExitLatency

DUMMYSTRUCTNAME.ClockPowerManagement

DUMMYSTRUCTNAME.SurpriseDownErrorReportingCapable

DUMMYSTRUCTNAME.DataLinkLayerActiveReportingCapable

DUMMYSTRUCTNAME.LinkBandwidthNotificationCapability

DUMMYSTRUCTNAME.AspmOptionalityCompliance

DUMMYSTRUCTNAME.Rsvd

DUMMYSTRUCTNAME.PortNumber

AsULONG

A ULONG representation of the contents of the PCI_EXPRESS_LINK_CAPABILITIES_REGISTER structure.

Remarks

The PCI_EXPRESS_LINK_CAPABILITIES_REGISTER structure is available in Windows Server 2008 and later versions of Windows.

A PCI_EXPRESS_LINK_CAPABILITIES_REGISTER structure is contained in the PCI_EXPRESS_CAPABILITY structure.

Requirements

   
Header ntddk.h (include Ntddk.h, Miniport.h)

See Also

PCI_EXPRESS_CAPABILITY