!usbkd.ehci_info_from_fdo
O comando !usbkd.ehci_info_from_fdo exibe informações sobre um controlador de host USB.
!usbkd.ehci_info_from_fdo fdo
Parâmetros
FDO
Endereço do objeto de dispositivo funcional (FDO) de um controlador de host USB UHCI ou EHCI. Você pode obter o endereço do FDO a partir da saída do comando !usb2tree.
DLL
Usbkd.dll
Exemplos
Primeiro use o comando !usb2tree para obter o endereço do FDO.
0: kd> !usbkd.usb2tree
EHCI MINIPORT(s) dt usbport!_USBPORT_MINIPORT_DRIVER ffffe00001f48bd0
1)!ehci_info ffffe00001ca11a0 !devobj ffffe00001ca1050 PCI: VendorId 8086 DeviceId 293c RevisionId 0002
...
Na saída anterior, você pode ver que o endereço do FDO do controlador host USB é ffffe00001ca1050. Passe o endereço do FDO para !ehci_info_from_fdo.
0: kd> !usbkd.ehci_info_from_fdo ffffe00001ca1050
HC Flavor 1000 FDO ffffe00001ca1050
Root Hub: FDO ffffe00002320050 !hub2_info ffffe000023201a0
Operational Registers ffffd000228bf020
Device Data ffffe00001ca2da0
dt USBPORT!_FDO_EXTENSION ffffe00001ca15a0
DM Timer Flags ffffe00001ca16d4
FDO Flags ffffe00001ca16d0
HCD Log ffffe00001ca11a0
DeviceHandleList: !usblist ffffe00001ca23b8, DL
DeviceHandleDeletedList: !usblist ffffe00001ca23c8, DL [Empty]
GlobalEndpointList: !usblist ffffe00001ca2388, EP
EpNeoStateChangeList: !usblist ffffe00001ca2370, SC [Empty]
GlobalTtListHead: !usblist ffffe00001ca23a8, TT [Empty]
BusContextHead: !usblist ffffe00001ca16b0, BC
## Pending Requests
[001] dt USBPORT!_USB_IOREQUEST_CONTEXT ffffe00001ca1450 Tag: AddD Obj: ffffe00001ca11a0
...
## XDPC List
01) dt USBPORT!_XDPC_CONTEXT ffffe00001ca1f18
...
## PnP FUNC HISTORY (latest at bottom)
[01] IRP_MN_QUERY_CAPABILITIES
...