// wdm.h

typedef struct _BUS_RESOURCE_UPDATE_INTERFACE {
  USHORT                    Size;
  USHORT                    Version;
  PVOID                     Context;
  PINTERFACE_REFERENCE      InterfaceReference;
  PINTERFACE_DEREFERENCE    InterfaceDereference;
  PGET_UPDATED_BUS_RESOURCE GetUpdatedBusResource;
} BUS_RESOURCE_UPDATE_INTERFACE, *PBUS_RESOURCE_UPDATE_INTERFACE;
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Windows Driver Kit DDI reference (ns-wdm-_bus_resource_update_interface)

_BUS_RESOURCE_UPDATE_INTERFACE structure

Description

Enables device drivers to make direct calls to parent bus driver routines. This structure defines the GUID_BUS_RESOURCE_UPDATE_INTERFACE interface.

Members

`Size`

The size, in bytes, of this structure.

`Version`

The driver-defined interface version. Current version is PCI_FPB_RESOURCE_UPDATE_INTERFACE_VERSION.

`Context`

A pointer to interface-specific context information.

`InterfaceReference`

A pointer to an InterfaceReference routine that increments the interface's reference count.

`InterfaceDereference`

A pointer to an InterfaceDereference routine that decrements the interface's reference count.

`GetUpdatedBusResource`

A pointer to the busdriver-implemented callback function that is invoked to retrieve the updated resource information. See GET_UPDATED_BUS_RESOURCE

Remarks

The BUS_RESOURCE_UPDATE_INTERFACE structure is an extension of the INTERFACE structure.

BUS_RESOURCE_UPDATE_INTERFACE - NtDoc