Enter the target name that you created when you set up the target computer. In the Kernel Debugging dialog box, open the USB tab. Starting a Debugging Session Using WinDbg After the USB debug driver is installed, you can use either the 32-bit or 64-bit version of WinDbg for subsequent debugging sessions. This is why it is important to match the bitness of WinDbg to the bitness of Windows. Click OK.Īt this point, the USB debug driver gets installed on the host computer.

On the File menu, choose Kernel Debug.

For example, if the host computer is running a 64-bit version of Windows, open the 64-bit version of WinDbg as Administrator.

On the host computer, open a version of WinDbg (as Administrator) that matches the bitness of Windows running on the host computer.

Determine the bitness (32-bit or 64-bit) of Windows running on the host computer.

Connect a Universal Serial Bus (USB) 3.0 debug cable to the USB 3.0 ports that you have chosen for debugging on the host and target computers.

Starting a Debugging Session for the First Time When you have finished using the xHCI host controller for debugging, re-enable selective suspend for the xHCI host controller. If there is a Power Management tab, open the tab, and clear the Allow the computer to turn off this device to save power check box. Right click the node, and choose Properties. In Device Manager, navigate to the node for the root hub of the xHCI host controller. In Device Manager, navigate to the node for the xHCI host controller. To avoid these problems, disable selective suspend for the xHCI host controller (and its root hub) that you are using for debugging. In some cases, power transitions can interfere with debugging over USB 3.0. Look for an indication that a port on the host controller supports debugging. In UsbView, expand the nodes of the xHCI host controllers. In UsbView, locate all of the xHCI host controllers. The UsbView tool is included in Debugging Tools for Windows. On the target computer, launch the UsbView tool. On the target computer, an xHCI (USB 3.0) host controller that supports debugging On the host computer, an xHCI (USB 3.0) host controller This is an A-A crossover cable that has only the USB 3.0 lines and no Vbus. The computer that runs the debugger is called the host computer, and the computer being debugged is called the target computer.ĭebugging over a USB 3.0 cable requires the following hardware:Ī USB 3.0 debug cable. This topic describes how to set up USB 3.0 debugging manually. Debugging Tools for Windows supports kernel debugging over a USB 3.0 cable.

Usb xhci compliant host controller wiki