WdfIoQueueGetDevice method

[Applies to KMDF and UMDF]

The WdfIoQueueGetDevice method returns a handle to the framework device object that a specified I/O queue belongs to.

Syntax


WDFDEVICE WdfIoQueueGetDevice(
  [in]  WDFQUEUE Queue
);

Parameters

Queue [in]

A handle to a framework queue object.

Return value

WdfIoQueueGetDevice returns a handle to a framework device object.

A bug check occurs if the driver supplies an invalid object handle.

Remarks

For more information about the WdfIoQueueGetDevice method, see Obtaining I/O Queue Properties.

Examples

The following code example obtains a handle to the framework device object that is associated with the I/O queue that contains a specified request.


WDFDEVICE  device;

device = WdfIoQueueGetDevice(WdfRequestGetIoQueue(Request));

Requirements

Minimum KMDF version

1.0

Minimum UMDF version

2.0

Header

Wdfio.h (include Wdf.h)

Library

Wdf01000.sys (KMDF);
WUDFx02000.dll (UMDF)

IRQL

<= DISPATCH_LEVEL

DDI compliance rules

DriverCreate, KmdfIrql, KmdfIrql2

See also

WdfRequestGetIoQueue

 

 

Send comments about this topic to Microsoft

Show:
© 2014 Microsoft