hi Greg: 2014-03-06 22:49 GMT+08:00 Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>: > On Thu, Mar 06, 2014 at 10:35:24PM +0800, vichy wrote: >> hi sarah: >> > Can you send me the output of `sudo lsusb -v` for when the device is >> > under EHCI and when it's under xHCI? Also, please take a usbmon trace, >> > as described by >> > http://lxr.free-electrons.com/source/Documentation/usb/usbmon.txt >> > >> > Start the trace just before you plug the device in. Take one trace when >> > the device under EHCI, and one when it's under xHCI. >> Please reference the attachment >> >> > >> >> Below is my host environment >> > >> > Which kernel are you running? >> Linux 3.13.0 > > Please try 3.13.5, as a number of known USB 3 bugs have been fixed in > there since 3.13.0 Sure! BTW, would you please let me know what bug fixed in 3.13 for usb3? is it related to modem? appreciate your help, -- 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
