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PCI_EXPRESS_DEVICE_STATUS_REGISTER union (ntddk.h)

  • Article

The PCI_EXPRESS_DEVICE_STATUS_REGISTER structure describes a PCI Express (PCIe) device status register of a PCIe capability structure.

Syntax

typedef union _PCI_EXPRESS_DEVICE_STATUS_REGISTER {
  struct {
    USHORT CorrectableErrorDetected  :1;
    USHORT NonFatalErrorDetected  :1;
    USHORT FatalErrorDetected  :1;
    USHORT UnsupportedRequestDetected  :1;
    USHORT AuxPowerDetected  :1;
    USHORT TransactionsPending  :1;
    USHORT Rsvd  :10;
  };
  USHORT AsUSHORT;
} PCI_EXPRESS_DEVICE_STATUS_REGISTER, *PPCI_EXPRESS_DEVICE_STATUS_REGISTER;

Members

DUMMYSTRUCTNAME

DUMMYSTRUCTNAME.CorrectableErrorDetected

A single bit that indicates that a correctable error has been detected.

DUMMYSTRUCTNAME.NonFatalErrorDetected

A single bit that indicates that a non-fatal uncorrectable error has been detected.

DUMMYSTRUCTNAME.FatalErrorDetected

A single bit that indicates that a non-fatal uncorrectable error has been detected.

DUMMYSTRUCTNAME.UnsupportedRequestDetected

A single bit that indicates that an unsupported request has been detected.

DUMMYSTRUCTNAME.AuxPowerDetected

A single bit that indicates that AUX power has been detected.

DUMMYSTRUCTNAME.TransactionsPending

A single bit that indicates that the device has issued non-posted requests that have not been completed. The device clears this bit when all outstanding non-posted requests have completed or have been terminated by the completion timeout mechanism.

DUMMYSTRUCTNAME.Rsvd

Reserved.

AsUSHORT

A USHORT representation of the contents of the PCI_EXPRESS_DEVICE_STATUS_REGISTER structure.

Remarks

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

A PCI_EXPRESS_DEVICE_STATUS_REGISTER structure is contained in the PCI_EXPRESS_CAPABILITY structure.

Requirements

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

See also

PCI_EXPRESS_CAPABILITY