assignAPC

#!/bin/bash
#emacs: -*- mode: shell-script; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
#ex: set sts=4 ts=4 sw=4 noet:
#-------------------------- =+- Shell script -+= --------------------------
#
# @file      assignAPC
# @date      Fri Feb 20 11:16:31 2009
# @brief
#
#
#  Yaroslav Halchenko                                      CS@UNM, CS@NJIT
#  web:     http://www.onerussian.com                      & PSYCH@RUTGERS
#  e-mail:  yoh@onerussian.com                              ICQ#: 60653192
#
# DESCRIPTION (NOTES):
#
#   Helper script to create deterministic links to each APC unit's USB device
#   It was coded long ago, so it is quite sloppy ;)
#
# COPYRIGHT: Yaroslav Halchenko 2007-2009
#
# LICENSE:
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the
#  Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
#  MA 02110-1301, USA.
#
# On Debian system see /usr/share/common-licenses/GPL for the full license.
#
#-----------------\____________________________________/------------------

LDIR=/etc/apcupsd/links
APCDEVICES=( YS0320110332 YS0422220996 YS0422221259 )

mkdir -p $LDIR

for d in ${APCDEVICES[*]}
do
#  echo $d
  # First find out bus/dev for this device
  usbparm=`grep -6 $d /proc/bus/usb/devices | grep 'Bus.*Dev' | head -1 | sed -e 's/.*Bus=0*\([1-90]*\) .*Dev#=[ 0]*\([0-9]*\) .*/\1 \2 0/g' 2>/dev/null`
  found=0
  # find out hiddev for it in a stupid way for now
  for dhid in /dev/usb/hiddev*
    do
    hidparm=`/usr/local/sbin/usbinfo $dhid 2>/dev/null`
    if [ "x${hidparm}x" == "x${usbparm}x" ]
	then
	found=1
	ln -sf $dhid $LDIR/$d
	break;
    fi
  done
  [ $found == 1 ] || echo "Couldn't find corresponding device for UPS $d"
done