2012/7/13 VIKAS SAJJAN C <vikas.sajjan@xxxxxxxxxxx>: > > I tested same USB 2.0 device on a linux machine running 3.2.19 kernel connecting through same VIA SS hub. > it works fine. > now i wonder where is the issue in my 3.4.0 kernel. is it in my exynos driver or usb core... I built the 3.2.19 kernel and 3.4.0 kernel on x86. And my VIA hub works fine. I can't duplicate your issue. Maybe you can get a new one or upgrade the FW. According to your information, it seems like you tested it on embedded platform.I am not sure my environment is the same as your or what works fine on x86 definitely works fine on embedded system. I will try it under other host controller. Best Regards, Elric > > ------- Original Message ------- > Sender : Elric Fu<elricfu1@xxxxxxxxx> > Date : Jul 13, 2012 18:59 (GMT+09:00) > Title : Re: usb 2.0 device connected on Super Speed HUB on USB 3.0 Port throws > error during enumeration on 3.4 kernel. > > 2012/7/13 Andiry Xu <andiry.xu@xxxxxxx>: >> On 07/13/2012 04:57 PM, VIKAS SAJJAN C wrote: >>> >>> Hi Andiry, >>> >>> >>> 1. xHCI root hub --- SS hub --- some other USB 2.0 devices >>> ----- I tired with 2 more usb 2.0 devices , same error comes. >>> >>> 2. xHCI root hub --- some other SS hub or HS hub --- the same USB2.0 >>> device >>> ------ i connected xHCI root hub -->HS hub--> the same 2.0 device , it >>> works fine. >>> >>> I dont have another SS hub to check with. >> >> >> SO that sounds like a hub issue. > > I think it seems like the hub is broken. > >> >> >>> >>> please find the attachement fot the log. >>> >> >> It's a VIA USB3.0 hub. I've not used it before but I heard it has several >> issues. So the easiest solution is to use another SS hub which passes USB-IF >> certification. > > Umm, Until now no one pass the USB-IF due to the Forum isn't ready > for usb 3.0 hub. > >> >> >> Thanks, >> Andiry >> >>> >>> ------- Original Message ------- >>> Sender : Andiry Xu<andiry.xu@xxxxxxx> >>> Date : Jul 13, 2012 17:11 (GMT+09:00) >>> Title : Re: usb 2.0 device connected on Super Speed HUB on USB 3.0 Port >>> throws >>> error during enumeration on 3.4 kernel. >>> >>> On 07/13/2012 03:50 PM, VIKAS SAJJAN C wrote: >>>> >>>> Hi Andiry, >>>> >>>> Thanks for the reply. >>>> >>>> If I connect the USB 2.0 Device directly to the USB 3.0 Port (without the >>>> SS Hub ), it works fine. >>>> It even works fine if i connect the same USB 2.0 Device through a SS Hub >>>> connected to USB 2.0 port (EHCI root hub). >>>> >>>> the Problem comes if i connect the same USB 2.0 Device through a SS Hub >>>> connected to USB 3.0 port (XHCI root hub). >>>> >>> >>> When a SS hub is connected to EHCI, it just works like a HS hub. No >>> address device command is issued. >>> >>> Can you post the output of lsusb -vvvv and lspci -vvnn? >>> >>> And what occurs with the following two scnearios: >>> >>> 1. xHCI root hub --- SS hub --- some other USB 2.0 devices >>> 2. xHCI root hub --- some other SS hub or HS hub --- the same USB2.0 >>> device >>> >>> Thanks, >>> Andiry >>> >>> >>>> >>>> ------- Original Message ------- >>>> Sender : Andiry Xu<andiry.xu@xxxxxxx> >>>> Date : Jul 13, 2012 16:29 (GMT+09:00) >>>> Title : Re: usb 2.0 device connected on Super Speed HUB on USB 3.0 Port >>>> throws >>>> error during enumeration on 3.4 kernel. >>>> >>>> On 07/13/2012 02:49 PM, VIKAS SAJJAN C wrote: >>>>> >>>>> Hi , >>>>> I am working on 3.4 kernel , when i try to connect a USB 2.0 device on >>>>> Super Speed HUB , i get following error. >>>>> >>>>> usb 3-1.1: Device not responding to set address. >>>>> usb 3-1.1: device not accepting address 3, error -71 >>>>> >>>>> any inputs will be of great help. >>>>> >>>>> Thanks and Regards >>>>> Vikas Sajjan ¢éì¹» ®&Þ~º&¶ ¬–+-±éݶ ¥Šw®žË›±Êâmébžìn±¸§¶ ›¡Ü¨}©ž²Æ >>>>> zÚ&j:+v‰¨¾ «‘êçzZ+€Ê+zf£¢·hšˆ§~††Ûiÿûàz¹ ®w¥¢¸?™¨èÚ&¢)ߢ f >>>> >>>> >>>> The address command is rejected by the device. What happens if you plug >>>> the device to EHCI controller or to xHCI root hub (without the SS hub)? >>>> >>>> Thanks, >>>> Andiry >>>> >>> >>> >> >> >> -- >> 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 -- 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
