On Mon, Oct 22, 2012 at 11:52:16AM -0400, Alan Stern wrote: > On Sun, 21 Oct 2012, Holger Hans Peter Freyther wrote: > > On Mon, Oct 15, 2012 at 04:21:47PM -0400, Alan Stern wrote: > Unfortunately there's nothing here to indicate the cause of the > problem. Either the scanner just stopped working (for no apparent > reason), or the xHCI controller stopped communicating with it (for no > apparent reason). > > Did you connect the scanner to the computer with a USB-2 cable or a > USB-3 cable? Not that it's supposed to matter... Yeah, that shouldn't matter. > Maybe Sarah can give you some pointers on where to look next. I've asked for a physical bus trace from one of our QA folks with the same scanner. I think that will shed some light on whether this is a host-side bug or a software bug. I do know that a certain set of scanners don't work under Ivy Bridge/Panther Point xHCI hosts, I just haven't had time to look at the bus trace to figure out why. Sarah Sharp -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
