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
