USBPM_EVENT_CALLBACK_PARAMS structure (usbpmapi.h)

Contains the details of the events related to changes in policy manager arrival/removal, hub arrival/removal or connector state change. This structure is used in the EVT_USBPM_EVENT_CALLBACK callback function.

Syntax

typedef struct _USBPM_EVENT_CALLBACK_PARAMS {
  USBPM_EVENT_TYPE EventType;
  union {
    struct {
      ULONG AccessGranted;
    } PolicyManagerArrival;
    struct {
      USBPM_HUB HubHandle;
    } HubArrivalRemoval;
    struct {
      USBPM_CONNECTOR ConnectorHandle;
    } ConnectorStateChange;
  } EventData;
  PVOID            Context;
} USBPM_EVENT_CALLBACK_PARAMS, *PUSBPM_EVENT_CALLBACK_PARAMS;

Members

EventType

A USBPM_EVENT_TYPE-type value that indicates the type of event.

EventData

A union that contains the event-specific data. The client driver should set the event data in the inner structure related to the event.

EventData.PolicyManagerArrival

Data about the Policy Manager arrival event.

EventData.PolicyManagerArrival.AccessGranted

EventData.HubArrivalRemoval

Data about the hub arrival or removal event.

EventData.HubArrivalRemoval.HubHandle

The handle to the connector hub.

EventData.ConnectorStateChange

Data about the connector state change event.

EventData.ConnectorStateChange.ConnectorHandle

The handle to the connector.

Context

The context which is provided by the client driver in a previous call to UsbPm_Register.

Requirements

Requirement	Value
Minimum supported client	Windows 10, version 1809
Minimum KMDF version	1.27
Minimum UMDF version	2.27
Header	usbpmapi.h