// ntddk.h

typedef struct _WHEA_PCI_SLOT_NUMBER {
  union {
    struct {
      ULONG DeviceNumber : 5;
      ULONG FunctionNumber : 3;
      ULONG Reserved : 24;
    } bits;
    ULONG AsULONG;
  } u;
} WHEA_PCI_SLOT_NUMBER, *PWHEA_PCI_SLOT_NUMBER;
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Windows Driver Kit DDI reference (ns-ntddk-_whea_pci_slot_number)

_WHEA_PCI_SLOT_NUMBER structure

Description

The WHEA_PCI_SLOT_NUMBER structure describes a logical PCI slot.

Members

`u`

A union that contains the following members:

`u.bits`

A structure that describes the logical PCI slot.

`u.bits.DeviceNumber`

The device number that is assigned to the logical PCI slot.

`u.bits.FunctionNumber`

The specific function on the device that is located in the logical PCI slot.

`u.bits.Reserved`

Reserved for system use.

`u.AsULONG`

A ULONG representation of the contents of the WHEA_PCI_SLOT_NUMBER structure.

Remarks

A WHEA_PCI_SLOT_NUMBER structure is contained within the WHEA_AER_BRIDGE_DESCRIPTOR, WHEA_AER_ENDPOINT_DESCRIPTOR, and WHEA_AER_ROOTPORT_DESCRIPTOR structures.

WHEA_PCI_SLOT_NUMBER - NtDoc