Yo Alan! On Tue, 3 Jul 2012 10:07:09 -0400 (EDT) Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > In particular, it can matter a lot during debugging. Thus, you and > Sarah have been talking about USB-2 vs. USB-3 -- and yet the > impression I got was that Sarah really meant EHCI vs. xHCI. Maybe my > impression was wrong. To clarify things a bit, I have a xHCI controlled chip. That chip is ID'ed: 1849:7023. It runs USB 3.0 and has a blue connector. The xHCI'ed chip is connected, using a USB 3.0 cable to an external 4 port USB 3.0 hub. 3 of the hub's USB 3.0 ports have blue USB 3.0 connectors. The reamining 1 of the hub's USB 3.0 ports is connected internal to the hub to a USB 2.0 hub (black connectors). My test case involves three sub-tests. plugging a USB 2.0 (High Speed) headset into: 1. a USB 2.0 port on the hub. 2. a USB 3.0 port on the hub. 3. directly in to the mobo USB 3.0 port. Is that clear? Do you suspect I have misused any terms? RGDS GARY --------------------------------------------------------------------------- Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97701 gem@xxxxxxxxxx Tel:+1(541)382-8588
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