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ACX_DEVICEINIT_CONFIG structure (acxdevice.h)

  • Article

The ACX_DEVICEINIT_CONFIG structure provides configuration information to the class extension.

Syntax

typedef struct _ACX_DEVICEINIT_CONFIG {
  ULONG                     Size;
  ULONG                     Flags;
  WDF_SYNCHRONIZATION_SCOPE SynchronizationScope;
  WDF_EXECUTION_LEVEL       ExecutionLevel;
  PVOID                     Context[ACX_DEVICEINIT_CONFIG_CONTEXT_SIZE];
} ACX_DEVICEINIT_CONFIG, *PACX_DEVICEINIT_CONFIG;

Members

Size

This field is set by the ACX_DEVICE_CONFIG_INIT function.

Flags

Reserved.

SynchronizationScope

A WDF_SYNCHRONIZATION_SCOPE value specifying how the framework will synchronize execution of an object's event callback functions.

Internal only. Do not change the default value.

ExecutionLevel

A WDF_EXECUTION_LEVEL value specifying the maximum IRQL at which the framework will call the event callback functions that a driver has supplied for a framework object.

Internal only. Do not change the default value.

Context[ACX_DEVICEINIT_CONFIG_CONTEXT_SIZE]

Pointer to the context space for the class extension.

Remarks

Instances of this structure must be initialized by calling the ACX_DEVICEINIT_CONFIG_INIT function. A pointer to an ACX_DEVICEINIT_CONFIG structure is passed as a parameter to the AcxDeviceInitInitialize function.

ACX requirements

Minimum ACX version: 1.0

For more information about ACX versions, see ACX version overview.

Requirements

Requirement Value
Header acxdevice.h

See also