Hi, We have updated the HCK filters. After that, It seems that this test failure is filtered now. Good! Thank you. On Fri, May 16, 2014 at 10:43 AM, Matthew van Eerde < Matthew.van.Eerde@xxxxxxxxxxxxx> wrote: > It’s not clear to me whether this is a problem in the USB class driver > or in your descriptor. > > > > If the former, the appropriate mitigation for the test failure is for > Microsoft to issue an errata, since the bug is in the OS. > > > > If the latter, you should fix your descriptor. > > > > Can you send me a screenshot of your KS filter in KS Studio, and your > descriptor? I’m particularly interested in the terminal type of the pin in > question. > > >