user/bkusbreset

   1 #!/bin/bash
   2 # script to force reset USB devices
   3 # soruce: http://billauer.co.il/blog/2013/02/usb-reset-ehci-uhci-linux/
   4
   5
   6 if [[ $EUID != 0 ]] ; then
   7   echo This must be run as root!
   8   exit 1
   9 fi
  10
  11 for xhci in /sys/bus/pci/drivers/?hci_hcd ; do
  12
  13   if ! cd $xhci ; then
  14     echo Weird error. Failed to change directory to $xhci
  15     exit 1
  16   fi
  17
  18   echo Resetting devices from $xhci...
  19
  20   for i in ????:??:??.? ; do
  21     echo -n "$i" > unbind
  22     echo -n "$i" > bind
  23   done
  24 done