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&¢)ߢf
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
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