共用方式為

！usbkd.usbhubext

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！usbkd.usbhubext 命令會顯示USB中樞的相關信息。

!usbkd.usbhubext DeviceExtension

參數

DeviceExtension
下列其中一個位址：

  • USB 中樞功能裝置物件 （FDO） 的裝置延伸模組。
  • 連接到 USB 中樞之裝置之實體裝置物件的裝置擴充功能。

DLL

Usbkd.dll

範例

以下是尋找 USB 中樞 FDO 裝置擴充功能的位址的其中一種方式。 首先輸入 ！usbkd.usb2tree。

0: kd> !usbkd.usb2tree
...
2)!ehci_info ffffe00001ca11a0 !devobj ffffe00001ca1050 PCI: VendorId 8086 DeviceId 293c RevisionId 0002 
    RootHub !hub2_info ffffe000023201a0 !devstack ffffe00002320050

在上述輸出中，您可以看到建議的命令 ！devstack ffffe00002320050。 輸入此命令。

0: kd> !kdexts.devstack ffffe00002320050

  !DevObj           !DrvObj            !DevExt           ObjectName
> ffffe00002320050  \Driver\usbhub     ffffe000023201a0  0000002d
  ffffe0000213c050  \Driver\usbehci    ffffe0000213c1a0  USBPDO-3
...

在上述輸出中，您可以看到中樞 FDO 的裝置延伸模組位址為 ffffe000023201a0。

現在，將裝置擴充功能的位址傳遞至 ！usbkd.usbhubext 命令。

0: kd> !usbkd.usbhubext ffffe000023201a0

FDO ffffe00002320050 PDO ffffe0000213c050 HubNumber# 3
dt USBHUB!_DEVICE_EXTENSION_HUB ffffe000023201a0
!usbhublog ffffe000023201a0
RemoveLock ffffe00002320668
FdoFlags ffffe00002320ba0

CurrentPowerIrp: System (0000000000000000) Device (0000000000000000)

ObjReferenceList: !usblist ffffe00002320b70, RL 
ExceptionList: !usblist ffffe00002321498, EL [Empty]
DmTimerListHead: !usblist ffffe00002321040, TL [Empty]
PdoRemovedListHead: !usblist ffffe00002321478, PL [Empty]
PdoPresentListHead: !usblist ffffe00002321468, PL 
WorkItemListHead: !usblist ffffe00002320c80, WI [Empty]
SshBusyListHead: !usblist ffffe00002320dc0, BL 


## PnP FUNC HISTORY (latest at bottom)

01. IRP_MN_QUERY_DEVICE_RELATIONS
...
## POWER FUNC HISTORY (latest at bottom)

01. IRP_MN_QUERY_POWER    - PowerSystemHibernate
...

## HARD RESET STATE HISTORY (latest at bottom)

##     EVENT                           STATE                                   NEXT

01. HRE_Pause                       HReset_WaitReady                        HReset_Paused                           
...

## PNP STATE HISTORY (latest at bottom)

##     EVENT                           STATE                                   NEXT

01. Ev_SYSTEM_POWER                 FDO_WaitPnpStop                         FDO_WaitPnpStop                         
...

## POWER STATE HISTORY (latest at bottom)

##     EVENT                           STATE                                   NEXT

01. Ev_SET_POWER_S0                 FdoSx_Dx                                FdoWaitS0IoComplete_Dx                  
...

## BUS STATE HISTORY (latest at bottom)

##     EVENT                           STATE                                   NEXT

01. BE_BusSuspend                   BS_BusPause                             BS_BusSuspend                           
...

SSH_EnabledStatus: [SSH_ENABLED_VIA_POWER_POLICY]

## SSH STATE HISTORY (latest at bottom)

##     EVENT                           STATE                                   NEXT

01. SSH_Event_ResumeHubComplete     SSH_State_HubPendingResume              SSH_State_HubActive                     
...

## PORT DATA

PortData 1: !port2_info ffffe000021bf000 Port State = PS_WAIT_CONNECT PortChangeLock: 0, Pcq_State: Pcq_Run_Idle             
     PDO 0000000000000000 
...

以下是尋找連線到 USB 中樞之裝置 PDO 之裝置延伸模組位址的其中一種方式。 首先輸入 ！usbkd.usb2tree。

0: kd> !usbkd.usb2tree
...
2)!ehci_info ffffe00001ca11a0 !devobj ffffe00001ca1050 PCI: VendorId 8086 DeviceId 293c RevisionId 0002 
    RootHub !hub2_info ffffe000023201a0 !devstack ffffe00002320050
        Port 1: !port2_info ffffe000021bf000 
        Port 2: !port2_info ffffe000021bfb40 
        Port 3: !port2_info ffffe000021c0680 !devstack ffffe00007c882a0

在上述輸出中，您可以看到建議的命令 ！devstack ffffe00007c882a0。 輸入此命令。

0: kd> !kdexts.devstack ffffe00007c882a0

  !DevObj           !DrvObj            !DevExt           ObjectName
  ffffe00006ce2260  \Driver\USBSTOR    ffffe00006ce23b0  00000070
> ffffe00007c882a0  \Driver\usbhub     ffffe00007c883f0  USBPDO-4
...

在上述輸出中，您可以看到裝置 PDO 的裝置延伸模組位址為 ffffe00007c883f0。

現在，將裝置延伸模組的位址傳遞至 ！usbhcdpnp 命令。

0: kd> !usbkd.usbhubext ffffe00007c883f0

dt USBHUB!_DEVICE_EXTENSION_PDO ffffe00007c883f0
PARENT HUB: FDO ffffe00002320050 !hub2_info ffffe000023201a0
!usbhubinfo ffffe00002320050
PORT NUMBER : 3
IoList: !usblist ffffe00007c888b0, IO 
LatchList: !usblist ffffe00007c888e0, LA 

## PnP ID's

DeviceId:USB\VID_0781&PID_5530  
HardwareId:USB\VID_0781&PID_5530&REV_0100USB\VID_0781&PID_5530  
CompatibleId:USB\Class_08&SubClass_06&Prot_50USB\Class_08&SubClass_06USB\Class_08  
SerialNumberId:20052444100A47F319CB  
UniqueId:3  
ProductId:Cruzer  

## Pnp Func History (latest at bottom)

01. IRP_MN_QUERY_BUS_INFORMATION
...

## Power Func History (latest at bottom)


## PNP STATE HISTORY (latest at bottom)

##     EVENT                           STATE                                   NEXT

01. (6)                            (0)                                    PDO_WaitPnpStart                        
02. Ev_PDO_IRP_MN_START             PDO_WaitPnpStart                        PDO_WaitPnpStop                         

## POWER STATE HISTORY (latest at bottom)

##     EVENT                           STATE                                   NEXT

    [EMPTY]

## HARDWARE STATE HISTORY (latest at bottom)

##     EVENT                           STATE                                   NEXT

01. PdoEv_CreatePdo                 (0)                                    Pdo_Created                             
02. PdoEv_RegisterPdo               Pdo_Created                             Pdo_HwPresent                           
03. PdoEv_QBR                       Pdo_HwPresent                           Pdo_PnpRefHwPresent                     

## IDLE STATE HISTORY (latest at bottom)

##     EVENT                           STATE                                   NEXT

    [EMPTY]

另請參閱

USB 2.0 調試程式擴充功能

通用序列總線 （USB） 驅動程式