On Sun, May 29, 2011 at 10:24:24AM +0000, Michael Niederle wrote: > Hi, Greg! > > > Hm, not good. Can you enable CONFIG_USB_DEBUG and send us the kernel > > logs when you plug the device in? I'm sure that Sarah will want to see > > those to try to resolve this. > > I enabled USB debugging. This added the first three lines to the following > kernel log. The same USB port works fine when under BIOS control (boot > loader) - so the hardware seems to work properly. > > Greetings, Michael > > [ 19.305855] hub 3-0:1.0: state 7 ports 2 chg 0000 evt 0004 > [ 19.305871] hub 3-0:1.0: port 2, status 0101, change 0001, 12 Mb/s > [ 19.409033] hub 3-0:1.0: debounce: port 2: total 100ms stable 100ms status > 0x101 [ 19.510758] xhci_hcd 0000:02:00.0: Unknown completion code 192 for > reset device command. [ 19.510763] usb 3-2: Cannot reset HCD device state > [ 19.510766] hub 3-0:1.0: port 2 not enabled, trying reset again... Hi Michael, There are two patches that Greg pushed to Linus yesterday that should solve this issue: e2b0217 xhci: Add defines for hardcoded slot states 001fd38 xhci: Do not issue device reset when device is not setup If you test with latest tree, it should fix your issue. The patches are marked as being bound for the stable trees. Let me know if you run into any other problems with the Etron xHCI host. 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
