！wudfext.wudfdevice

！wudfext.wudfdevice 擴充功能會顯示裝置的 隨插即用 （PnP） 和電源管理狀態系統。

!wudfext.wudfdevice pWDFDevice

參數

pWDFDevice
指定要顯示 PnP 或電源管理狀態之 IWDFDevice 介面的位址。

DLL

Wudfext.dll

其他資訊

如需詳細資訊，請參閱 使用者模式驅動程式架構偵錯。

備註

您可以使用 ！wudfext.wudfdevice 擴充功能來判斷 pWDFDevice 參數所指定裝置目前的 PnP 或電源管理狀態。

以下是 ！wudfext.wudfdevice 顯示器的範例：

kd> !wudfdevice 0xf2f80 
Pnp Driver Callbacks:
  IPnpCallback: 0x0
  IPnpCallbackHardware: 0x0
  IPnpSelfManagedIo: 0x0
Pnp State Machine:
  CurrentState:  WdfDevStatePnpStarted
  Pending UMIrp: 0x00000000
    Could not read event queue depth, assuming 8
  Event queue:
    Processed/in-process events:
      PnpEventAddDevice
      PnpEventStartDevice
      PnpEventPwrPolStarted
    Pending events:
    State History:
      WdfDevStatePnpInit
      WdfDevStatePnpInitStarting
      WdfDevStatePnpHardwareAvailable
      WdfDevStatePnpEnableInterfaces
      WdfDevStatePnpStarted
Power State Machine:
  CurrentState:      WdfDevStatePowerD0
  Pending UMIrp:     0x00000000
  IoCallbackFailure: false
    Could not read event queue depth, assuming 8
  Event queue:
    Processed/in-process events:
      PowerImplicitD0
    Pending events:
    State History:
      WdfDevStatePowerStartingCheckDeviceType
      WdfDevStatePowerD0Starting
      WdfDevStatePowerD0StartingConnectInterrupt
      WdfDevStatePowerD0StartingDmaEnable
      WdfDevStatePowerD0StartingStartSelfManagedIo
      WdfDevStatePowerDecideD0State
      WdfDevStatePowerD0
Power Policy State Machine:
  CurrentState             : WdfDevStatePwrPolStartingSucceeded
  PowerPolicyOwner         : false
  PendingSystemPower UMIrp : 0x00000000
  PowerFailed              : false
    Could not read event queue depth, assuming 8
  Event queue:
    Processed/in-process events:
      PwrPolStart
      PwrPolPowerUp
    Pending events:
    State History:
      WdfDevStatePwrPolStarting
      WdfDevStatePwrPolStarted
      WdfDevStatePwrPolStartingSucceeded