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Linux/UNIX/POSIX Shell Script  |  2005-10-21  |  1KB  |  48 lines
  1. #!/bin/sh
  2.  
  3. # udev external PROGRAM script
  4. # return devfs-names for ide-devices
  5. # BUS="ide", KERNEL="hd*", PROGRAM="/etc/udev/ide-devfs.sh %k %b %n", NAME="%k", SYMLINK="%c{1} %c{2}", GROUP="%c{3}"
  6.  
  7. HOST="${2%\.[0-9]}"
  8. TARGET="${2#[0-9]\.}"
  9.  
  10. if [ -z "${HOST#[13579]}" ]; then
  11.     HOST=$((${HOST} - 1))
  12.     BUS="1"
  13. else
  14.     BUS="0"
  15. fi
  16.  
  17. get_dev_number() {
  18.     num=0
  19.     DRIVE="${1%%[0-9]*}"
  20.  
  21.     for x in /proc/ide/*/media; do
  22.         if [ -e "${x}" ]; then
  23.             lMEDIA=`cat ${x}`
  24.             if [ "${lMEDIA}" = "$2" ]; then
  25.                 num=$((${num} + 1))
  26.             fi
  27.             if [ "${x}" = "/proc/ide/${DRIVE}/media" ]; then
  28.                 break
  29.             fi
  30.         fi
  31.     done
  32.     
  33.     echo $((${num} - 1))
  34. }
  35.  
  36. if [ -z "$3" ] && [ -f /proc/ide/${1}/media ]; then
  37.     MEDIA=`cat /proc/ide/${1}/media`
  38.     if [ "${MEDIA}" = "cdrom" ]; then
  39.         echo ide/host${HOST}/bus${BUS}/target${TARGET}/lun0/cd cdroms/cdrom`get_dev_number $1 cdrom` ${MEDIA}
  40.     elif [ "${MEDIA}" = "floppy" ]; then
  41.         echo ide/host${HOST}/bus${BUS}/target${TARGET}/lun0/disc floppies/floppy`get_dev_number $1 floppy`/disc ${MEDIA}
  42.     elif [ "${MEDIA}" = "disk" ]; then
  43.         echo ide/host${HOST}/bus${BUS}/target${TARGET}/lun0/disc discs/disc`get_dev_number $1 disk`/disc ${MEDIA}
  44.     fi
  45. else
  46.     echo ide/host${HOST}/bus${BUS}/target${TARGET}/lun0/part$3 discs/disc`get_dev_number $1 disk`/part$3
  47. fi
  48.