！usb3kd.hub_info_from_fdo
！usb3kd.hub_info_from_fdo 命令會顯示USB 3.0樹狀目錄中中樞的相關信息。
!usb3kd.hub_info_from_fdo DeviceObject
參數
DeviceObject
代表中樞的功能裝置物件 （FDO） 位址。
DLL
Usb3kd.dll
範例
您可以從 ！usb_tree 的輸出或各種其他調試程式命令，取得 FDO 的位址。 例如， ！devstack 命令會顯示 FDO 的位址。 在下列範例中，FDO 的位址為fffffa800597a660。
3: kd> !devnode 0 1 usbhub3
Dumping IopRootDeviceNode (= 0xfffffa8003609cc0)
DevNode 0xfffffa8005981730 for PDO 0xfffffa8004ffc550
...
3: kd> !devstack 0xfffffa8004ffc550
!DevObj !DrvObj !DevExt ObjectName
fffffa800597a660 \Driver\USBHUB3 fffffa8005ad92d0
> fffffa8004ffc550 \Driver\USBXHCI fffffa8005251d00 USBPDO-0
...
現在您可以將 FDO 的地址傳遞至 ！usb3kd.hub_info_from_fdo 命令。
3: kd> !hub_info_from_fdo fffffa800597a660
## Dumping HUB Information fffffa800597a660
----------------------------------------
dt USBHUB3!_HUB_FDO_CONTEXT 0xfffffa8005ad92d0
!rcdrlogdump usbhub3 -a 0xfffffa8005ad8010
Capabilities: Initialized, Configured, HasOverCurrentProtection, SelectiveSuspendSupportedByParentStack, CannotWakeOnConnect, NotArmedForWake
Total number of ports: 4, HUB depth is 0
Number of 3.0 ports: 2 (Range 1 - 2)
Number of 2.0 ports: 2 (Range 3 - 4)
Descriptors:
dt _USB_HUB_DESCRIPTOR 0xfffffa8005ad9728
dt _USB_30_HUB_DESCRIPTOR 0xfffffa8005ad9728
dt _USB_DEVICE_DESCRIPTOR 0xfffffa8005ad92d0
dt _USB_CONFIGURATION_DESCRIPTOR 0xfffffa8005ad9770
List of PortContext: 4
[1] !port_info 0xfffffa8005a5ca80 !device_info 0xfffffa8005b410c0
Last Port Status(2.0): Connected Enabled Powered HighSpeedDeviceAttached
Last Port Change: <none>
Current Port(2.0) State: ConnectedEnabled.WaitingForPortChangeEvent
Current Device State: ConfiguredInD0
...
Current Hub State: ConfiguredWithIntTransfer
Hub State History: <Event> NewState (<Operation>(),..) :
[43] <OperationSuccess> ConfiguredWithIntTransfer
...
Hub Event History:
[ 0] PortEnableInterruptTransfer
...