What if there is more than one EHCI controller in the target computer?
If there is more than one EHCI controller in the target computer, you should specify the controller that should be used for kernel debugging. Otherwise, you could have a situation where your USB debug cable is plugged into the debug port connector of one controller when the operating system on the target computer is attempting to use the debug port of a different EHCI controller. Failure to specify the controller to use for kernel debugging when there is more than one EHCI controller in the test computer typically results in USB kernel debugging not working. To specify the EHCI controller to use for kernel debugging, type the following in a command prompt window with elevated privileges on the target computer: bcdedit -set {current} loadoptions busparams=x.y.z The x, y, and z values are computed from the bus, device, and function numbers for the EHCI controller that is to be used for kernel debugging.
Related Questions
- Can a controller temporarily turn off any JAWS user settings on the target computer, in order to troubleshoot a problem that the target computer is having?
- While in a JAWS Tandem session, can the controller use the Task Manager on the target computer?
- What if there is more than one EHCI controller in the target computer?
