On Fri, 11 Nov 2011, Andiry Xu wrote: > On 11/10/2011 07:52 PM, Tomi Orava wrote: > > > > Quoting Andiry Xu <andiry.xu@xxxxxxx>: > > > >> On 11/09/2011 05:59 AM, Tomi Orava wrote: > >>> > >>> Quoting Andiry Xu <andiry.xu@xxxxxxx>: > >>> > >>>> On 11/08/2011 01:35 PM, Tomi Orava wrote: > >>>>> > >>>>> Hi, > >>>>> > >>>>>> The USB 2.0 hub doesn't want to enumerate under EHCI. -32 is -EPIPE, > >>>>>> which is a protocol error, maybe a stall? In any case, it looks like > >>>>>> your hub is just not working. Have you tried a different hub? Or a > >>>>>> different cable to the hub? > >>>>> > >>>>> I just wanted to verify that all the end devices are ok and working, > >>>>> so I plugged the Cypress usb 2.0 hub & logitech web camera to > >>>>> my lenovo laptop (standard log below) and everything is working > >>>>> just fine. > >>>>> I'm currently using another logitech mouse via this hub. > >>>>> Would it help to get more detailed usb debug log out of these devices > >>>>> while connected to a host where they do work ? > >>>>> > >>>> > >>>> Please try the patch attached, connect the hub to the USB2.0 ports on > >>>> your original board to see if it helps. > >>> > >>> Here is the full kernel log with your & Sarah's patches applied. > >> > >> You plugged to the xHCI ports. Please plug it to USB2(EHCI) ports. > > > > Ups! Here is the proper log: http://ncircle.nullnet.fi/usb/usb.log > > Its 800K, mostly due to xhci_hcd debug logs. > > > > So the host just fail to fetch device descriptor of the hub devices. > I'll try to find some hub using Cypress Tetra and check the issue locally. Tomi, can you try plugging a different device into the same port? Maybe a USB flash drive? Do you get the same result? Alan Stern -- 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
