!wudfext.wudfdevice

!wudfext.wudfdevice 扩展显示设备的即插即用 (PnP) 和电源管理状态系统。

!wudfext.wudfdevice pWDFDevice

参数

pWDFDevice
指定要显示相关 PnP 或电源管理状态的 IWDFDevice 接口的地址。

DLL

Wudfext.dll

其他信息

有关详细信息，请参阅用户模式驱动程序框架调试。

注解

可以使用 !wudfext.wudfdevice 扩展来确定 pWDFDevice 参数指定的设备的当前 PnP 或电源管理状态。

下面是 !wudfext.wudfdevice 的显示示例：

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