!usbkd.usbhubext
!usbkd.usbhubext 命令显示有关 USB 集线器的信息。
!usbkd.usbhubext DeviceExtension
参数
DeviceExtension
以下地址之一：
- USB 集线器功能设备对象 (FDO) 的设备扩展。
- 用于连接 USB 集线器的设备的物理设备对象 (PDO) 的设备扩展。
DLL
Usbkd.dll
示例
下面是查找 USB 集线器 FDO 设备扩展地址的一种方法。 首先输入 !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
在前面的输出中，可以看到建议的命令 !devstack ffffe00002320050。 输入此命令：
0: kd> !kdexts.devstack ffffe00002320050
!DevObj !DrvObj !DevExt ObjectName
> ffffe00002320050 \Driver\usbhub ffffe000023201a0 0000002d
ffffe0000213c050 \Driver\usbehci ffffe0000213c1a0 USBPDO-3
...
在前面的输出中，可以看到集线器 FDO 的设备扩展名地址是 ffffe000023201a0。
现在，将设备扩展的地址传递给 !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
...
以下是查找连接到 USB 集线器的设备的 PDO 的设备扩展地址的一种方法。 首先输入 !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
在前面的输出中，可以看到建议的命令 !devstack ffffe00007c882a0。 输入此命令：
0: kd> !kdexts.devstack ffffe00007c882a0
!DevObj !DrvObj !DevExt ObjectName
ffffe00006ce2260 \Driver\USBSTOR ffffe00006ce23b0 00000070
> ffffe00007c882a0 \Driver\usbhub ffffe00007c883f0 USBPDO-4
...
在前面的输出中，可以看到设备 PDO 的设备扩展名地址是 ffffe00007c883f0。
现在，将设备扩展的地址传递给 !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]