!usb3kd.port_info
The !usb3kd.port_info command displays information about a USB port in the USB 3.0 tree.
!usb3kd.port_info PortContext
Parameters
PortContext
Address of a _PORT_CONTEXT structure.
DLL
Usb3kd.dll
Examples
To obtain the address of the port context, look at the output of the !usb_tree command. In the following example, the address of a port context is 0xfffffa8005abe0c0.
3: kd> !usb_tree
## Dumping HUB Tree - !drvObj 0xfffffa800597f770
--------------------------------------------
Topology
--------
1) !xhci_info 0xfffffa80051d1940 ... - PCI: VendorId ...
!hub_info 0xfffffa8005ad92d0 (ROOT)
...
!port_info 0xfffffa8005abe0c0 !device_info 0xfffffa8005abd0c0 Desc: ... USB Flash Drive Speed: Super
Now you can pass the address of the port context to the !port_info command.
3: kd> !port_info 0xfffffa8005abe0c0
## Dumping Port Context 0xfffffa8005abe0c0
---------------------------------------
dt USBHUB3!_PORT_CONTEXT 0xfffffa8005abe0c0
!hub_info 0xfffffa8005ad92d0 (dt _HUB_FDO_CONTEXT 0xfffffa8005ad92d0)
!device_info 0xfffffa8005abd0c0 (dt _DEVICE_CONTEXT 0xfffffa8005abd0c0)
!rcdrlogdump usbhub3 -a 0xfffffa8005abf6b0
PortNumber: 2
Last Port Status(3.0): Connected Enabled Powered
Last Port Change: <none>
CurrentPortEvent: PsmEventPortConnectChange
Current Port(3.0) State: ConnectedEnabled.WaitingForPortChangeEvent
Port(3.0) State History: <Event> NewState (<Operation>(),..) :
[34] <Push> WaitingForPortChangeEvent
...
Port Event History:
[ 8] TransferSuccess
...