[LAU] Unbinding USB devices

[Ralf Mardorf]

PS:

[rocketmouse at archlinux ~]$ sudo lsusb -vvv 2>/dev/null | grep bcdUSB
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               3.00
  bcdUSB               2.00
  bcdUSB               2.00
[rocketmouse at archlinux ~]$ sudo lsusb -vvv | grep bcdUSB
can't get debug descriptor: Resource temporarily unavailable
can't get device qualifier: Resource temporarily unavailable
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
can't get debug descriptor: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
  bcdUSB               3.00
  bcdUSB               2.00
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
  bcdUSB               2.00
[rocketmouse at archlinux ~]$ printf "0000:00:1a.0" | sudo tee unbind >/dev/null
[rocketmouse at archlinux ~]$ sudo lsusb -vvv 2>/dev/null | grep bcdUSB
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               3.00
  bcdUSB               2.00
  bcdUSB               2.00

Strange, just one 2.0 port is used by the mouse. However, the mobo
should show 8 ports USB 2.0 and 4 USB 3.0.

[rocketmouse at archlinux ~]$ printf "0000:00:1a.0" | sudo tee bind >/dev/null
[rocketmouse at archlinux ~]$ sudo lsusb -vvv 2>/dev/null | grep bcdUSB
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               2.00
  bcdUSB               3.00
  bcdUSB               2.00
  bcdUSB               2.00