I have similar bug, but the device (icy box multi card reader) doesn't work since 8.10 It worked flawlessly before and also works with all windows versions.
The log is spammed with
hub 2-0:1.0: unable to enumerate USB device on port 1
and sometimes mixed with lines
usb 2-1: new high speed USB device using ehci_hcd and address 82
...
usb 2-1: new high speed USB device using ehci_hcd and address 10
(always different number).
I have similar bug, but the device (icy box multi card reader) doesn't work since 8.10 It worked flawlessly before and also works with all windows versions.
The log is spammed with
hub 2-0:1.0: unable to enumerate USB device on port 1
and sometimes mixed with lines
usb 2-1: new high speed USB device using ehci_hcd and address 82
...
usb 2-1: new high speed USB device using ehci_hcd and address 10
(always different number).