!wudfext.wudfdevicequeues

The !wudfext.wudfdevicequeues extension displays information about all the I/O queues for a device.

Syntax

!wudfext.wudfdevicequeues pWDFDevice

Parameters

pWDFDevice

Specifies the address of the IWDFDevice interface to display information about all of its associated I/O queues. The !wudfext.wudfdriverinfo extension command determines the address of IWDFDevice.

DLL

Comments

The following is an example of the !wudfext.wudfdevicequeues display:

kd> !wudfdevicequeues 0xf2f80
--------------------------------------------------
Queue: 1 (!wudfqueue 0x000f3500)
    WdfIoQueueDispatchSequential, POWER MANAGED, WdfIoQueuePowerOn, CAN ACCEPT, CAN DISPATCH
    Number of driver owned requests: 1
      IWDFIoRequest 0x000fa7c0     CWdfIoRequest 0x000fa748
    Number of waiting requests: 199
      IWDFIoRequest 0x000fa908     CWdfIoRequest 0x000fa890
      IWDFIoRequest 0x000faa50     CWdfIoRequest 0x000fa9d8
…
      IWDFIoRequest 0x000fa678     CWdfIoRequest 0x000fa600
    Driver's callback interfaces.
      IQueueCallbackRead 0x000f343c
      IQueueCallbackDeviceIoControl 0x000f3438
      IQueueCallbackWrite 0x000f3440

Additional Information

For more information, see User-Mode Driver Framework Debugging.