#!/bin/bash
# FreeAgentFix 1.4 2008-02-17 19:45:13-05 root Stable
#================================================================
# FreeAgentFix - fix "Free Agent" USB drives going off line in Linux
#   Author: davidsen@tmr.com
# Based on discussions in LKML and similar lists
#   brings the drive online
#   clears standby
#   Tells the kernel to allow restart

# sanity check
if [ $# -lt 1 ]; then
  echo "FreeAgentFix v1.4 - keeps \"Free Agent\" drives online in Linux"
  echo
  echo "Usage:"
  echo "  ./FreeAgentFix sdX"
  echo
  echo "Where \"X\" is the drive letter assigned when the drive is connected"
  echo
  echo "Plug in the drive, see what device name is assigned to the drive"
  echo "using \"dmesg | tail -10\" or similar"
  echo "run the script with the drive name only (without /dev/)"
  echo
  echo

  # this should be made executable (chmod +x FreeAgentFix) but if
  # someone sources it, don't mess them up
  fn=${0##*/}
  if [ "$fn" == "FreeAgentFix" ]; then
    exit; else
    return
  fi
fi

disk=$1

bash -xv <<XX
# Start the drive
sdparm --command=start /dev/${disk}
# Clear the standby
sdparm --clear STANDBY -6 /dev/${disk}
# Allow restart
cd /sys/block/${disk}/device/scsi_disk*
if [ -f allow_restart ]; then
 echo 1 >allow_restart
fi