Let me check this information and I will be back as soon as possible.
I am sorry for the delay on coming back to you.
Based on our research, Windows 7 doesn’t support kernel debug over xHCI. This is a OS debug limitation. In this case there are two options for you:
- Install Windows 8 on the system to use xHCI debug.
- Un-install xHCI driver on Win 7 so USB port will be routed back to the EHCI controller. You then can connect cable to port 1 or 9 for kernel debug.
I am already using Windows 8.1 for both the host and target system. I should have mentioned it in my original post.
As I mentioned before, I can get this to work with NEC chipsets and VIA chipsets. For some reason it isn't working on
Intel chipsets (Broadwell & Haswell EP). Can you confirm if this is working at Intel? If so, what do I need to do.
Let me verify this internally and I will be back. I am sorry for the delay on this process.
Thanks again for looking at this.
There is no limitation with our chipsets. xHCI debug works the xHCI controller . Definitely work on Broadwell PCH and Haswell EP Definitely, it works since it’s required by MSFT HCK test for debug port.
My question for you, is the port routed to xHCI controller or EHIC?