Australian Personal Computer 2003 July/CD 2 Debian 3.0r1/Debian.iso/isolinux/root.bin/root/sbin/MAKEDEV

Text File | 2002-03-02 | 42.5 KB | 1,850 lines

#! /bin/sh -

RCSID='$Id: MAKEDEV 2.3 1997/09/29 19:03:13 johnsonm Exp $'

#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#
# Customisation:
#   The devices fall into various classes.  This section contains the mapping
# from a class name into a group name and permission.
#   You will almost certainly need to edit the group name to match your
# system, and you may change the permissions to suit your preference.  These
# lines _must_ be of the format "user group perm".

 public="  root root   0666"
private="  root root   0600"
 system="  root root   0660"
   kmem="  root kmem   0640"
    tty="  root tty    0666"
   cons="  root tty    0600"
    vcs="  root root   0600"
dialout="  root dialout 0660"
    dip="  root dip    0660"
  mouse="  root root   0660"
printer="  root lp     0660"
 floppy="  root floppy 0660"
   disk="  root disk   0660"
   scsi="  root root   0600"
  cdrom="  root cdrom  0660"
   tape="  root tape   0660"
  audio="  root audio  0660"
  video="  root video  0660"
     fb="  root video  0620"
  ibcs2="  root root   0666"
scanner="  root root   0666"
   coda="  root root   0600"
  ipsec="  root root   0200"
readable="  root root   0444"

MAXVT=63

# defaults for $major_*
major_ide0=3
major_ide1=22
major_sd=8
major_lp=6

# Remark: OSS/Linux becomes major_OSSLinux

#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#

# don't stomp on devfs users
if  [ -c .devfsd ]
then
    echo ".devfsd presence implies active DevFS.  Aborting MAKEDEV invocation."
    # use exit 0, not 1, so postinst scripts don't fail on this
    exit 0
fi

#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#

procfs=/proc

opt_v=
opt_d=
opt_n=

while [ $# -ge 1 ]
do
    case $1 in
        --)    shift; break ;;
        -v)    shift; opt_v=1 ;;
        -d)    shift; opt_d=1 ;;
        -n)    shift; opt_n=1; opt_v=1 ;;
        -V)    shift; opt_V=1 ;;
        -*)    echo "$0: unknown flag \"$1\"" >&2; exit 1 ;;
        *)    break ;;
    esac
done

if [ "$opt_V" ]
then
    echo "$RCSID"
    exit 0
fi

opts="${opt_n:+-n} ${opt_v:+-v} ${opt_d:+-d}"

#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#

makedev () {    # usage: makedev name [bcu] major minor owner group mode
    if [ "$opt_v" ]
    then    if [ "$opt_d" ]
        then    echo "delete $1"
        else    echo "create $1    $2 $3 $4 $5:$6 $7"
        fi
    fi
    if [ ! "$opt_n" ]
    then    if [ "$opt_d" ]
        then
            rm -f $1
        else
            rm -f $1-
            mknod $1- $2 $3 $4 &&
            chown $5:$6 $1- &&
            chmod $7 $1- &&
            mv $1- $1
        fi
    fi
}
symlink () {    # usage: symlink name target
    if [ "$opt_v" ]
    then    if [ "$opt_d" ]
        then    echo "delete $1"
        else    echo "create $1    -> $2"
        fi
    fi
    [ ! "$opt_n" ] && rm -f $1 &&
    [ ! "$opt_d" ] && ln -s $2 $1
}

#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#

# Debian allows us to assume /bin/sh is a POSIX compliant shell, so go for it!

math () {
    eval echo "\$(($*))"
}
index () {    # index string c
    eval "I=\${1%$2*}"
    eval echo "\${#I}"
}
suffix () {
    eval echo "\${1#$2}"
}
strip () {
    eval echo "\${1% $2 *} \${1#* $2 }"
}
first () {
    eval echo "\${1:0:1}"
}
second () {
    eval echo "\${1:1:1}"
}
substr () {
    echo $1 | cut -c $2
}

#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#---#

devices=
if [ ! -f $procfs/devices ]
then
    echo "$0: warning: can't read $procfs/devices" >&2
else
    exec 3<$procfs/devices
    while read major device <&3
    do
        device=`echo $device | sed 's#/.*##'`
        case "$major" in
            Character|Block|'')
                ;;
            *)
                eval "major_$device=$major"
                devices="$devices $device"
                ;;
        esac
    done
    exec 3<&-
fi

Major () {
    device=$2
    if [ "$opt_d" ]
    then
        echo -1    # don't care
    else
        eval echo \${major_$1:-\${device:?\"unknown major number for $1\"}}
    fi
}

cvt () {
    while [ $# -ne 0 ]
    do
        case "$1" in
            mem|tty|ttyp|cua|cub|cui)    ;;
            hd)    (for d in a b c d e f g h ; do
                    echo -n hd$d " "
                 done) ; echo
                ;;
            ide0)    echo hda hdb ;;
            ide1)    echo hdc hdd ;;
            ide2)    echo hde hdf ;;
            ide3)    echo hdg hdh ;;
            ide4)    echo hdi hdj ;;
            ide5)    echo hdk hdl ;;
            sd)    echo sda sdb sdc sdd ;;
            dasd)   (for d in a b c d e f g h i j k l m \
                    n o p q r s t u v w x y z ; do
                    echo -n dasd$d " "
                done) ; echo
                ;;
            raw)    echo raw ;;
            sg)    echo sg ;;
            sr)    echo scd ;;
            st)    echo st0 ;;
            xd)    echo xda xdb ;;
            ad)    echo ada adb ;;
            fd)    echo fd0 fd1 ;;
            lp)    echo lp ;;
            mt)    echo ftape ;;
            qft)    echo ftape ;;
            loop)    echo loop ;;
            md)    echo md ;;
            ibcs2)    echo ibcs2 ;;
            tpqic02)    echo qic ;;
            sound)        echo audio ;;
            logiscan)    echo logiscan ;;
            ac4096)        echo ac4096 ;;
            hw)    echo helloworld ;;
            sbpcd | sbpcd[123])    echo $1 ;;
            joystick)    echo js ;;
            input)    echo input ;;
            apm_bios)    echo apm ;;
            dcf)        echo dcf ;;
            aztcd)        echo aztcd ;;
            cm206cd)    echo cm206cd ;;
            gscd)        echo gscd ;;
            pcmcia)    ;; # taken care of by its own driver
            ttyC)    echo cyclades ;;
            isdn)    echo isdnmodem isdnbri dcbri ;;
            vcs)    ;;
            pty)    echo pty ;;
            misc)    echo misc ;;
            3dfx)    echo 3dfx ;;
            agpgart)    echo agpgart ;;
            microcode)    echo microcode ;;
            ipmi|ipmikcs)    echo ipmi ;;
            fb)    echo fb ;;
            nb)    echo nb0 nb1 ;;
            netlink)    echo netlink ;;
            tap)    echo netlink ;;
            hamradio)    echo hamradio ;;
            snd)    ;;
            ptm)    ;;
            pts)    ;;
            ttyS)    echo ttyS0 ttyS1 ttyS2 ttyS3 ;;
            ttyI)    echo ttyI0 ttyI1 ttyI2 ttyI3 ;;
            ircomm|irlpt)    irda ;;
            ppp)    echo ppp ;;
            usb)    echo usb ;;
            lvm)    ;; # taken care of by LVM userspace tools
            ramdisk)    echo ram ;;
            *)    echo "$0: don't know what \"$1\" is" >&2 ;;
        esac
        shift
    done
}

for arg
do
#    case `cvt $arg` in
    case $arg in
    generic)
        # pick the right generic-<arch> using dpkg's knowledge
        case `dpkg --print-installation-architecture` in
            alpha)
                $0 $opts generic-alpha
                ;;
            arm)
                $0 $opts generic-arm
                ;;
            hppa)
                $0 $opts generic-hppa
                ;;
            i386)
                $0 $opts generic-i386
                ;;
            ia64)
                $0 $opts generic-ia64
                ;;
            m68k)
                $0 $opts generic-m68k
                ;;
            mips)
                $0 $opts generic-mips
                ;;
            mipsel)
                $0 $opts generic-mipsel
                ;;
            powerpc)
                $0 $opts generic-powerpc
                ;;
            s390)
                $0 $opts generic-s390
                ;;
            sparc)
                $0 $opts generic-sparc
                ;;
            *)
                echo "$0: no support for generic on this arch" >&2
                exit 1
                ;;
        esac
        ;;
    generic-alpha)
        $0 $opts std
        $0 $opts fd
        $0 $opts fd0 fd1
        $0 $opts hda hdb hdc hdd
        $0 $opts xda xdb
        $0 $opts sda sdb sdc sdd
        $0 $opts scd0 scd1
        $0 $opts st0 st1
        $0 $opts sg
        $0 $opts pty
        $0 $opts console
        $0 $opts ttyS0 ttyS1 ttyS2 ttyS3
        $0 $opts busmice
        $0 $opts lp
        $0 $opts par
        $0 $opts audio
        $0 $opts fb
        ;;
    generic-arm)
        $0 $opts std
        $0 $opts fd
        $0 $opts fd0 fd1
        $0 $opts hda hdb hdc hdd
        $0 $opts xda xdb
        $0 $opts sda sdb sdc sdd
        $0 $opts scd0 scd1
        $0 $opts st0 st1
        $0 $opts sg
        $0 $opts pty
        $0 $opts console
        $0 $opts ttyS0 ttyS1 ttyS2 ttyS3
        $0 $opts busmice
        $0 $opts lp
        $0 $opts par
        $0 $opts audio
        $0 $opts fb
        ;;
    generic-hppa)
        $0 $opts std
        $0 $opts fd
        $0 $opts fd0 fd1
        $0 $opts sda sdb sdc sdd
        $0 $opts scd0 scd1
        $0 $opts st0 st1
        $0 $opts sg
        $0 $opts pty
        $0 $opts console
        $0 $opts ttyS0 ttyS1 ttyS2 ttyS3
        $0 $opts busmice
        $0 $opts lp
        $0 $opts par
        $0 $opts audio
        $0 $opts fb
        $0 $opts rtc
        ;;
    generic-i386)
        $0 $opts std
        $0 $opts fd
        $0 $opts fd0 fd1
        $0 $opts hda hdb hdc hdd
        $0 $opts xda xdb
        $0 $opts sda sdb sdc sdd
        $0 $opts scd0 scd1
        $0 $opts st0 st1
        $0 $opts sg
        $0 $opts pty
        $0 $opts console
        $0 $opts ttyS0 ttyS1 ttyS2 ttyS3
        $0 $opts busmice
        $0 $opts lp
        $0 $opts par
        $0 $opts audio
        $0 $opts fb
        $0 $opts isdn-io eda edb sonycd mcd mcdx cdu535
        $0 $opts optcd sjcd cm206cd gscd
        $0 $opts lmscd sbpcd aztcd bpcd dac960 ida ataraid cciss
        ;;
    generic-ia64)
        $0 $opts std
        $0 $opts fd
        $0 $opts fd0 fd1
        $0 $opts hda hdb hdc hdd
        $0 $opts xda xdb
        $0 $opts sda sdb sdc sdd
        $0 $opts scd0 scd1
        $0 $opts st0 st1
        $0 $opts sg
        $0 $opts pty
        $0 $opts console
        $0 $opts ttyS0 ttyS1 ttyS2 ttyS3 ttyS4 ttyS5
        $0 $opts busmice
        $0 $opts lp
        $0 $opts par
        $0 $opts audio
        $0 $opts fb
        $0 $opts efirtc
        ;;
    generic-m68k)
        $0 $opts std
        $0 $opts fd
        $0 $opts fd0 fd1
        $0 $opts hda hdb hdc hdd
        $0 $opts sda sdb sdc sdd
        $0 $opts sg
        $0 $opts ada adb adc add ade adf
        $0 $opts pty
        $0 $opts console
        $0 $opts ttyS0 ttyS1 ttyS2 ttyS3 ttyS5
        $0 $opts m68k-mice
        $0 $opts lp
        $0 $opts par
        $0 $opts nvram
        $0 $opts audio
        $0 $opts fb
        ;;
    generic-mips)
        $0 $opts std
        $0 $opts fd
        $0 $opts fd0 fd1
        $0 $opts hda hdb
        $0 $opts sda sdb sdc sdd
        $0 $opts scd0 scd1
        $0 $opts st0 st1
        $0 $opts sg
        $0 $opts pty
        $0 $opts console
        $0 $opts ttyS0 ttyS1 ttyS2 ttyS3
        $0 $opts lp
        $0 $opts par
        $0 $opts audio
        $0 $opts fb
        $0 $opts busmice
        ;;
    generic-mipsel)
        $0 $opts std
        $0 $opts fd
        $0 $opts fd0 fd1
        $0 $opts hda hdb
        $0 $opts sda sdb sdc sdd
        $0 $opts scd0 scd1
        $0 $opts st0 st1
        $0 $opts sg
        $0 $opts pty
        $0 $opts console
        $0 $opts ttyS0 ttyS1 ttyS2 ttyS3
        $0 $opts lp
        $0 $opts par
        $0 $opts audio
        $0 $opts fb
        $0 $opts rtc
        ;;
    generic-powerpc)
        $0 $opts std
        $0 $opts fd
        $0 $opts fd0 fd1
        $0 $opts hda hdb hdc hdd
        $0 $opts sda sdb sdc sdd
        $0 $opts scd0 scd1
        $0 $opts st0 st1
        $0 $opts sg
        $0 $opts pty
        $0 $opts console
        $0 $opts ttyS0 ttyS1 ttyS2 ttyS3
        $0 $opts busmice
        $0 $opts m68k-mice
        $0 $opts input
        $0 $opts lp
        $0 $opts par
        $0 $opts nvram
        $0 $opts audio
        $0 $opts adb
        $0 $opts fb
        $0 $opts rtc
        $0 $opts isdn-io
        ;;
    generic-s390)
        $0 $opts std
        $0 $opts fd
        $0 $opts dasda dasdb dasdc dasdd dasde dasdf dasdg dasdh \
            dasdi dasdj dasdk dasdl dasdm dasdn dasdo dasdp \
            dasdq dasdr dasds dasdt dasdu dasdv dasdw dasdx \
            dasdy dasdz
        $0 $opts pty
        $0 $opts consoleonly
        $0 $opts rtc
        ;;
    generic-sparc)
        $0 $opts std
        $0 $opts fd0-bare fd1-bare
        $0 $opts hda hdb hdc hdd
        $0 $opts sda sdb sdc sdd
        $0 $opts scd0 scd1
        $0 $opts st0 st1
        $0 $opts sg
        $0 $opts pty
        $0 $opts console
        $0 $opts ttyS0 ttyS1 ttyS2 ttyS3
        $0 $opts busmice
        $0 $opts fb
        $0 $opts rtc
        makedev kbd  c 11 0 $cons
        makedev sunmouse  c 10 6 $mouse
        symlink mouse sunmouse
        makedev openprom  c 10 139 $mouse
        ;;
    local)
        $0.local $opts
        ;;
    std)
        makedev mem  c 1 1 $kmem
        makedev kmem c 1 2 $kmem
        makedev null c 1 3 $public
        makedev port c 1 4 $kmem
        makedev zero c 1 5 $public
        symlink core $procfs/kcore
        makedev full c 1 7 $public
        makedev random c 1 8 $public
        makedev urandom c 1 9 $readable
        makedev tty  c 5 0 $tty
        $0 $opts ram
        $0 $opts loop
        ;;
    hamradio)
        $0 $opts scc
        $0 $opts bc
        ;;
    scc)
        for unit in 0 1 2 3 4 5 6 7
        do
            makedev scc$unit c 34 $unit $system
        done
        ;;
    bc)
        for unit in 0 1 2 3
        do
            makedev bc$unit c 51 $unit $system
        done
        ;;
    random)
        makedev random c 1 8 $public
        ;;
    urandom)
        makedev urandom c 1 9 $readable
        ;;
    ram)
        for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ; do
            makedev ram$i  b 1 $i $disk
        done
        symlink ram ram1
        ;;
    ram[0-9]|ram1[0-6])
        unit=`suffix $arg ram`
        makedev ram$unit b 1 $unit $disk
        ;;
    initrd)
        makedev initrd b 1 250 $disk
        ;;
    raw)
        makedev raw c 162 0 $disk
        symlink rawctl raw
        for i in 1 2 3 4 5 6 7 8; do
            makedev raw$i c 162 $i $disk
        done
        ;;
    consoleonly)
        makedev tty0 c 4 0 $cons
        #    new kernels need a device, old ones a symlink... sigh
        kern_rev1=`uname -r | awk -F'.' '{print $1}'`
        kern_rev2=`uname -r | awk -F'.' '{print $2}'`
        if [ $kern_rev1 -gt 2 ]
        then
            makedev console c 5 1 $cons
        else
            if [ $kern_rev1 -eq 2 -a $kern_rev2 -ge 1 ]
            then
                makedev console c 5 1 $cons
            else
                symlink console tty0
            fi
        fi
        ;;
    console)
        $0 $opts consoleonly
        major=`Major vcs 7`       # not fatal
        [ "$major" ] && makedev vcs0 c $major 0 $vcs
        symlink vcs vcs0
        [ "$major" ] && makedev vcsa0 c $major 128 $vcs
        symlink vcsa vcsa0
        # individual vts
        line=1
        while [ $line -le $MAXVT -a $line -le 63 ]
        do
            makedev tty$line c 4 $line $tty
            [ "$major" ] && makedev vcs$line c $major $line $vcs
            [ "$major" ] && makedev vcsa$line c $major `math $line + 128` $vcs
            line=`math $line + 1`
        done
        ;;
    adb)
        # pick the right arch device using dpkg's knowledge
        case `dpkg --print-installation-architecture` in
            powerpc)
                # ADB bus devices (char)
                makedev adb c 56 0 $mouse
                makedev adbmouse c 10 10 $mouse
                ;;
            m68k)
                # ACSI disk 2, whole device (block)
                makedev adb b 28 16 $disk
                for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
                do
                    minor=$(( 16 + $part ))
                    makedev adb$part b 28 $minor $disk
                done
                ;;
            *)
                echo "no support for adb on this arch" >&2
                exit 1
                ;;
        esac
        ;;
    raw1394)
        makedev raw1394 c 171 0 $disk
        ;;
    nvram)
        makedev nvram c 10 144 $mouse
        ;;
    tty[1-9]|tty[1-5][0-9]|tty[6][0-3])
        line=`suffix $arg tty`
        makedev tty$line c 4 $line $tty
        ;;
    ttyS[0-9]|ttyS[1-5][0-9]|ttyS[6][0-3])
        line=`suffix $arg ttyS`
        minor=`math 64 + $line`
        makedev ttyS$line c 4 $minor $dialout
        ;;
    pty[a-ep-z])
        bank=`suffix $arg pty`
        base=`index pqrstuvwxyzabcde $bank`
        base=`math $base \* 16`
        for i in 0 1 2 3 4 5 6 7 8 9 a b c d e f
        do
            j=`index 0123456789abcdef $i`
            makedev pty$bank$i c 2 `math $base + $j` $tty
            makedev tty$bank$i c 3 `math $base + $j` $tty
        done
        ;;
    pty)
        ptysufs=""
        for i in p q r s t u v w x y z a b c d e
        do
            ptysufs="$ptysufs pty$i"
        done
        $0 $opts $ptysufs ptmx
        ;;
    ptmx)
        # master pty multiplexer for 2.1 kernels
        makedev ptmx c 5 2 $tty
        ;;
    cyclades|ttyC)
        major1=`Major ttyC 19` || continue
        #major2=`Major cub 20` || continue
        for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 \
                         16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
        do
            makedev ttyC$i c $major1 $i $dialout
            #makedev cub$i c $major2 $i $dialout
        done
        ;;
    stallion|ttyE)
        major1=`Major ttyE 24` || continue
        #major2=`Major cue 25` || continue
        majorc=28
        minor=0
        until [ $minor -gt 256 ]
        do
            makedev ttyE$minor c $major1 $minor $dialout
            #makedev cue$minor c $major2 $minor $dialout
            minor=`math $minor + 1`
        done
        for i in 0 1 2 3
        do
            makedev staliomem$i c $majorc $i $private
        done
        ;;
    chase|ttyH)
        major1=`Major ttyH 17` || continue
        #major2=`Major cuh 18` || continue
        minor=0
        until [ $minor -gt 16 ] # tell me if 16 is wrong
        do
            makedev ttyH$minor c $major1 $minor $dialout
            #makedev cuh$minor c $major2 $minor $dialout
            minor=`math $minor + 1`
        done
        ;;
    rocketport|ttyR)
        major1=`Major ttyR 46` || continue
        #major2=`Major cur 47` || continue
        minor=0
        until [ $minor -gt 64 ] # tell me if 64 is wrong
        do
            makedev ttyR$minor c $major1 $minor $dialout
            #makedev cur$minor c $major2 $minor $dialout
            minor=`math $minor + 1`
        done
        ;;
    ttyV)
        major1=`Major ttyV 105` || continue
        #major2=`Major cuv 106` || continue
        minor=0
        until [ $minor -gt 16 ] # tell me if 16 is wrong
        do
            makedev ttyV$minor c $major1 $minor $dialout
            #makedev cuv$minor c $major2 $minor $dialout
            minor=`math $minor + 1`
        done
        ;;
    digi|ttyD)
        major1=`Major ttyD 22` || continue
        #major2=`Major cud 23` || continue
        minor=0
        until [ $minor -gt 16 ] # tell me if 16 is wrong
        do
            makedev ttyD$minor c $major1 $minor $dialout
            #makedev cud$minor c $major2 $minor $dialout
            minor=`math $minor + 1`
        done
        ;;
    specialix|ttyX)
        major1=`Major ttyX 32` || continue
        #major2=`Major cux 33` || continue
        minor=0
        until [ $minor -gt 16 ] # tell me if 16 is wrong
        do
            makedev ttyX$minor c $major1 $minor $dialout
            #makedev cux$minor c $major2 $minor $dialout
            minor=`math $minor + 1`
        done
        ;;
    specialixIO8|ttyW)
        major1=`Major ttyW 75` || continue
        #major2=`Major cuw 76` || continue
        minor=0
        until [ $minor -gt 16 ] # tell me if 16 is wrong
        do
            makedev ttyW$minor c $major1 $minor $dialout
            #makedev cuw$minor c $major2 $minor $dialout
            minor=`math $minor + 1`
        done
        ;;
    PAM|ttyM)
        major1=`Major ttyM 79` || continue
        #major2=`Major cum 80` || continue
        minor=0
        until [ $minor -gt 16 ] # tell me if 16 is wrong
        do
            makedev ttyM$minor c $major1 $minor $dialout
            #makedev cum$minor c $major2 $minor $dialout
            minor=`math $minor + 1`
        done
        ;;
    riscom|ttyL)
        major=`Major ttyL 48` || continue
        minor=0
        until [ $minor -gt 16 ] # tell me if 16 is wrong
        do
            makedev ttyL$minor c $major $minor $dialout
            minor=`math $minor + 1`
        done
        ;;
    computone|ttyF)
        major=`Major ttyF 71` || continue
        #major2=`Major cuf 72` || continue
        minor=0
        until [ $minor -gt 255 ]
        do
            makedev ttyF$minor c $major $minor $dialout
            #makedev cuf$minor c $major2 $minor $dialout
            minor=`math $minor + 1`
        done
        major=73
        for i in 0 4 8 12
        do
            makedev ip2ipl$i  c $major $i $private
            makedev ip2stat$i c $major `math $i + 1` $private
        done
        ;;
    ESP|ttyP)
        major=`Major ttyP 57` || continue
        #major2=`Major cup 58` || continue
        minor=0
        until [ $minor -gt 4 ] # tell me if 4 is wrong
        do
            makedev ttyP$minor c $major $minor $dialout
            #makedev cup$minor c $major2 $minor $dialout
            minor=`math $minor + 1`
        done
        ;;
    COMX|comx)
        major=`Major comx 88` || continue
        minor=0
        until [ $minor -gt 4 ] # tell me if 4 is wrong
        do
            makedev comx$minor c $major $minor $private
            minor=`math $minor + 1`
        done
        ;;
    isdnmodem|ttyI)
        major1=`Major ttyI 43` || continue
        #major2=`Major cui 44` || continue
        minor=0
        until [ $minor -gt 63 ]
        do
            makedev ttyI$minor c $major1 $minor $dialout
            #makedev cui$minor c $major2 $minor $dialout
            minor=`math $minor + 1`
        done
        ;;
    isdnbri)
        major=45
        minor=0
        until [ $minor -gt 63 ]
        do
            makedev isdn$minor c $major $minor $dialout
            makedev isdnctrl$minor c $major `math $minor + 64` $dialout
            makedev ippp$minor c $major `math $minor + 128` $dialout
            minor=`math $minor + 1`
        done
        makedev isdninfo c $major 255 $private
        ;;
    dcbri)
        major=52
        for i in 0 1 2 3
        do
            makedev dcbri$i c $major $i $dialout
        done
        ;;
    capi)
        major=68
        makedev capi20 c $major 0 $dialout
        for i in 0 1 2 3 4 5 6 7 8 9
        do
            makedev capi20.0$i c $major `math $i + 1` $dialout
        done
        for i in 10 11 12 13 14 15 16 17 18 19
        do
            makedev capi20.$i c $major `math $i + 1` $dialout
        done
        ;;
    ubd)
        major=98
        minor=0
        until [ $minor -gt 255 ]
        do
            makedev ubd$minor b $major $minor $disk
            minor=`math $minor + 1`
        done
        ;;
    fb)
        for i in 0 1 2 3 4 5 6 7
        do
            makedev fb$i c 29 `math 32 \* $i` $fb
            makedev fb${i}current c 29 `math 32 \* $i` $fb
            makedev fb${i}autodetect c 29 `math 32 \* $i + 1` $fb
        done
        ;;
    fb[0-7])
        dev=`suffix $arg fb`
        base=`math 32 \* $dev`
        makedev fb$dev c 29 $base $fb
        makedev fb${dev}current c 29 $base $fb
        makedev fb${dev}autodetect c 29 `math $base + 1` $fb
        for i in 0 1 2 3 4 5 6 7
        do
            makedev fb${dev}user$i c 29 `math $base + 24 + $i` $fb
        done
        ;;
    netlink|tap|tap[0-9]|tap1[0-5])
        makedev route     c 36 0 $coda
        makedev skip      c 36 1 $coda
        makedev fwmonitor c 36 3 $coda
        for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
        do
            makedev tap$i c 36 `math $i + 16` $coda
        done
        ;;
    lp)
        major=`Major lp 6` || continue
        makedev ${arg}0 c $major 0 $printer
        makedev ${arg}1 c $major 1 $printer
        makedev ${arg}2 c $major 2 $printer
        ;;
    par)
        major=`Major lp 6` || continue
        makedev ${arg}0 c $major 0 $printer
        makedev ${arg}1 c $major 1 $printer
        makedev ${arg}2 c $major 2 $printer
        ;;
    parport)
        major=`Major parport 99` || continue
        makedev ${arg}0 c $major 0 $printer
        makedev ${arg}1 c $major 1 $printer
        makedev ${arg}2 c $major 2 $printer
        ;;
    slm)
        major=`Major slm 28` || continue
        for i in 0 1 2 3
        do
            makedev slm c $major $i $printer
        done
        ;;
    input)
        major=`Major pcsp 13` || continue
        mkdir -p input
        for i in 0 1 2 3
        do
            makedev input/js$i c $major $i $mouse
            makedev input/mouse$i c $major `math $i + 32` $mouse
            makedev input/event$i c $major `math $i + 64` $mouse
        done
        makedev input/mice c $major 63 $mouse
        ;;
    busmice)
        major=`Major mouse 10` || continue
        makedev logibm      c $major 0 $mouse
        makedev psaux     c $major 1 $mouse
        makedev inportbm  c $major 2 $mouse
        makedev atibm     c $major 3 $mouse
        makedev jbm       c $major 4 $mouse
        ;;
    m68k-mice)
        major=`Major mouse 10` || continue
        makedev amigamouse c $major 4 $mouse
        makedev atarimouse c $major 5 $mouse
        makedev amigamouse1 c $major 7 $mouse
        makedev adbmouse  c $major 10 $mouse
        ;;
    3dfx)
        major=`Major $arg 107` || continue
        makedev $arg    c $major 0 $video
        ;;
    agpgart)
        major=`Major $arg 10` || continue
        makedev $arg    c $major 175 $video
        ;;
    intel_rng)
        major=`Major $arg 10` || continue
        makedev $arg    c $major 183 $private
        ;;
    cpu|microcode)
        mkdir -p cpu
        makedev cpu/microcode c 10 184 $private
        for i in 0 1 2 3
        do
            mkdir -p cpu/$i
            makedev cpu/$i/msr   c 202 $i $private
            makedev cpu/$i/cpuid c 203 $i $private
        done
        ;;
    ipmi|ipmikcs)
        major=`Major ipmikcs 10` || continue
        makedev ipmikcs    c $major 173 $private
        ;;
    irda)
        for i in 0 1
        do
            makedev ircomm$i c 161 $i $dialout
            makedev irlpt$i  c 161 `math $i + 16` $printer
        done
        ;;
    misc)
        major=`Major mouse 10` || continue
        makedev logibm      c $major 0 $mouse
        makedev psaux     c $major 1 $mouse
        makedev inportbm  c $major 2 $mouse
        makedev atibm     c $major 3 $mouse
        makedev jbm       c $major 4 $mouse
        makedev amigamouse c $major 4 $mouse
        makedev atarimouse c $major 5 $mouse
        makedev sunmouse  c $major 6 $mouse
        makedev amigamouse1 c $major 7 $mouse
        makedev smouse    c $major 8 $mouse
        makedev pc110pad  c $major 9 $mouse
        makedev adbmouse  c $major 10 $mouse
        makedev beep      c $major 128 $mouse
        makedev modreq    c $major 129 $mouse
        makedev watchdog  c $major 130 $mouse
        makedev temperature c $major 131 $mouse
        makedev hwtrap    c $major 132 $mouse
        makedev exttrp    c $major 133 $mouse
        makedev apm_bios  c $major 134 $mouse
        makedev rtc       c $major 135 $mouse
        makedev openprom  c $major 139 $mouse
        makedev relay8    c $major 140 $mouse
        makedev relay16   c $major 141 $mouse
        makedev msr       c $major 142 $mouse
        makedev pciconf   c $major 143 $mouse
        makedev nvram     c $major 144 $mouse
        makedev hfmodem   c $major 145 $mouse
        makedev led       c $major 151 $mouse
        makedev mergemem  c $major 153 $mouse
        makedev pmu       c $major 154 $mouse
        ;;
    smapi|thinkpad)
        major=`Major mouse 10` || continue
        makedev smapi     c $major 170 $mouse
        symlink thinkpad smapi
        ;;
        rtc)
        major=`Major mouse 10` || continue
        makedev rtc       c $major 135 $mouse
        ;;
    efirtc)
        major=`Major mouse 10` || continue
        makedev efirtc    c $major 136 $mouse
         ;;
    js)
        major=`Major Joystick 13` || continue
        for unit in 0 1 2 3
        do
            makedev js$unit c $major $unit $readable
            makedev djs$unit c $major `math $unit + 128` $readable
        done
        ;;
    fd[0-7]-bare)
        sarg="${arg%-bare}"
        major=`Major fd 2` || continue
        base=`suffix $sarg fd`
        if [ $base -ge 4 ]
        then
            base=`math $base + 124`
        fi
        makedev ${sarg} b $major $base $floppy
        ;;
    fd[0-7])
        major=`Major fd 2` || continue
        base=`suffix $arg fd`
        if [ $base -ge 4 ]
        then
            base=`math $base + 124`
        fi
        makedev ${arg} b $major $base $floppy
        makedev ${arg}d360  b $major `math $base +  4` $floppy
        makedev ${arg}h1200 b $major `math $base +  8` $floppy
        makedev ${arg}u360  b $major `math $base + 12` $floppy
        makedev ${arg}u720  b $major `math $base + 16` $floppy
        makedev ${arg}h360  b $major `math $base + 20` $floppy
        makedev ${arg}h720  b $major `math $base + 24` $floppy
        makedev ${arg}u1440 b $major `math $base + 28` $floppy
        makedev ${arg}u2880 b $major `math $base + 32` $floppy
        makedev ${arg}CompaQ b $major `math $base + 36` $floppy

        makedev ${arg}h1440 b $major `math $base + 40` $floppy
        makedev ${arg}u1680 b $major `math $base + 44` $floppy
        makedev ${arg}h410  b $major `math $base + 48` $floppy
        makedev ${arg}u820  b $major `math $base + 52` $floppy
        makedev ${arg}h1476 b $major `math $base + 56` $floppy
        makedev ${arg}u1722 b $major `math $base + 60` $floppy
        makedev ${arg}h420  b $major `math $base + 64` $floppy
        makedev ${arg}u830  b $major `math $base + 68` $floppy
        makedev ${arg}h1494 b $major `math $base + 72` $floppy
        makedev ${arg}u1743 b $major `math $base + 76` $floppy
        makedev ${arg}h880  b $major `math $base + 80` $floppy
        makedev ${arg}u1040 b $major `math $base + 84` $floppy
        makedev ${arg}u1120 b $major `math $base + 88` $floppy
        makedev ${arg}h1600 b $major `math $base + 92` $floppy
        makedev ${arg}u1760 b $major `math $base + 96` $floppy
        makedev ${arg}u1920 b $major `math $base + 100` $floppy
        makedev ${arg}u3200 b $major `math $base + 104` $floppy
        makedev ${arg}u3520 b $major `math $base + 108` $floppy
        makedev ${arg}u3840 b $major `math $base + 112` $floppy
        makedev ${arg}u1840 b $major `math $base + 116` $floppy
        makedev ${arg}u800  b $major `math $base + 120` $floppy
        makedev ${arg}u1600 b $major `math $base + 124` $floppy
        ;;
    ed[a-b])
        major=`Major ed 36` || continue
        unit=`suffix $arg ed`
        base=`index ab $unit`
        base=`math $base \* 64`
        makedev ed$unit b $major $base $disk
        for part in 1 2 3 4 5 6 7 8 # 9 10 11 12 13 14 15 16 17 18 19 20
        do
            makedev ed$unit$part b $major `math $base + $part` $disk
        done
        ;;
    hd[a-b])
        major=`Major ide0` || major=`Major hd 3` || continue
        unit=`suffix $arg hd`
        base=`index ab $unit`
        base=`math $base \* 64`
        makedev hd$unit b $major $base $disk
        for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
        do
            makedev hd$unit$part b $major `math $base + $part` $disk
        done
        ;;
    hd[c-d])
        major=`Major ide1 22` || continue
        unit=`suffix $arg hd`
        base=`index cd $unit`
        base=`math $base \* 64`
        makedev hd$unit b $major $base $disk
        for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
        do
            makedev hd$unit$part b $major $(( $base + $part )) $disk
        done
        ;;
    hd[e-f])
        major=`Major ide2 33` || continue
        unit=`suffix $arg hd`
        base=`index ef $unit`
        base=`math $base \* 64`
        makedev hd$unit b $major $base $disk
        for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
        do
            makedev hd$unit$part b $major $(( $base + $part )) $disk
        done
        ;;
    hd[g-h])
        major=`Major ide3 34` || continue
        unit=`suffix $arg hd`
        base=`index gh $unit`
        base=`math $base \* 64`
        makedev hd$unit b $major $base $disk
        for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
        do
            makedev hd$unit$part b $major $(( $base + $part )) $disk
        done
        ;;
    hd[i-j])
        major=`Major ide4 56` || continue
        unit=`suffix $arg hd`
        base=`index ij $unit`
        base=`math $base \* 64`
        makedev hd$unit b $major $base $disk
        for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
        do
            makedev hd$unit$part b $major $(( $base + $part )) $disk
        done
        ;;
    hd[k-l])
        major=`Major ide5 57` || continue
        unit=`suffix $arg hd`
        base=`index kl $unit`
        base=`math $base \* 64`
        makedev hd$unit b $major $base $disk
        for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
        do
            makedev hd$unit$part b $major $(( $base + $part )) $disk
        done
        ;;
    ht0)
        major=`Major ht0 37` || continue
        # Only one IDE tape drive is currently supported; ht0.
        makedev ht0 c $major 0 $tape
        makedev nht0 c $major 128 $tape
        ;;
    pt)
        major=`Major pt 96` || continue
        for i in 0 1 2 3
        do
            makedev pt$i c $major $i $tape
            makedev npt$i c $major `math $i + 128` $tape
        done
        ;;
    xd[a-d])
        major=`Major xd 13` || continue
        unit=`suffix $arg xd`
        base=`index abcd $unit`
        base=`math $base \* 64`
        makedev xd$unit b $major $base $disk
        for part in 1 2 3 4 5 6 7 8 # 9 10 11 12 13 14 15 16 17 18 19 20
        do
            makedev xd$unit$part b $major $(( $base + $part )) $disk
        done
        ;;
    sd[a-z])
        major=`Major sd 8` || continue
        unit=`suffix $arg sd`
        base=`index abcdefghijklmnopqrstuvwxyz $unit`
        base=$(( $base * 16 ))
        if [ $base -lt 256 ]; then
            major=8
        else
            major=65
            base=$(( $base - 256 ))
        fi
        makedev sd$unit b $major $base $disk
        for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
        do
            minor=$(( $base + $part ))
            makedev sd$unit$part b $major $minor $disk
        done
        ;;
    sd[a-d][a-z])
        unit=`suffix $arg sd`
        unitmaj=`first $unit`
        unitmin=`second $unit`
        basemaj=`index Xabcd $unitmaj`
        basemin=`index abcdefghijklmnopqrstuvwxyz $unitmin`
        basemaj=`math $basemaj \* 416`
        basemin=`math $basemin \* 16`
        base=`math $basemaj + $basemin`
        basemaj=`math $base / 256`
        base=`math $base % 256`
        major=`math basemaj \+ 64`
        if [ $major -gt 71 ]; then
            echo "$0: don't know how to make device \"$arg\"" >&2
            exit 0
        fi
        makedev sd$unit b $major $base $disk
        for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
        do
            minor=$(( $base + $part ))
            makedev sd$unit$part b $major $minor $disk
        done
                ;;
    dasd[a-z])
        major=`Major dasd 94` || continue
        unit=`suffix $arg dasd`
        base=`index abcdefghijklmnopqrstuvwxyz $unit`
        base=$(( $base * 4 ))
        if [ $base -lt 256 ]; then
            major=94
        else
            major=65
            base=$(( $base - 256 ))
        fi
        makedev dasd$unit b $major $base $disk
        # Not yet implemented. (Feb. 8, 2001)
        # for part in 1 2 3
        for part in 1
        do
            minor=$(( $base + $part ))
            makedev dasd$unit$part b $major $minor $disk
        done
        ;;
    ad[a-p])
        major=`Major ad 28` || continue
        unit=`suffix $arg ad`
        base=`index abcdefghijklmnop $unit`
        base=`math $base \* 16`
        makedev ad$unit b $major $base $disk
        for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
        do
            minor=$(( $base + $part ))
            makedev ad$unit$part b $major $minor $disk
        done
        ;;
    dac960)
        for ctr in 0 1 2 3 4 5 6 7
        do
            $0 $opts dac960.$ctr
        done
        ;;
    dac960.[0-7])
        [ -d rd ] || {
            mkdir rd
            chown root.root rd
            chmod 755 rd
        }
        unit=`suffix $arg dac960.`
            major=`math 48 + $unit`
            minor=0
            for ld in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 \
                17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
            do
            makedev rd/c${unit}d${ld} b $major $minor $disk
            minor=`math $minor + 1`
            for part in 1 2 3 4 5 6 7
            do
                makedev rd/c${unit}d${ld}p$part b $major $minor $disk
                minor=`math $minor + 1`
            done
            done
        ;;
    ataraid)
        for ctr in 0 1 2 # 3 4 5 6 7
        do
            $0 $opts ataraid.$ctr
        done
        ;;
    ataraid.[0-7])
        [ -d ataraid ] || {
            mkdir ataraid
            chown root.root ataraid
            chmod 755 ataraid
        }
                unit=`suffix $arg ataraid.`
                major=114
                minor=`math $unit \* 16`
                makedev ataraid/d${unit} b $major $minor $disk
                for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
                do
                   minor=`math $minor + 1`
                   makedev ataraid/d${unit}p$part b $major $minor $disk
                done
         ;;
    ida)
        for ctr in 0 1 2 # 3 4 5 6 7
        do
            $0 $opts ida.$ctr
        done
        ;;
    ida.[0-7])
        [ -d ida ] || {
            mkdir ida
            chown root.root ida
            chmod 755 ida
        }
        unit=`suffix $arg ida.`
        major=`math 72 + $unit`
        minor=0
        for ld in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
        do
            makedev ida/c${unit}d${ld} b $major $minor $disk
            minor=`math $minor + 1`
            for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
            do
            makedev ida/c${unit}d${ld}p$part b $major $minor $disk
            minor=`math $minor + 1`
            done
        done
        ;;
    cciss)
        for ctr in 0 1 2 # 3 4 5 6 7
        do
            $0 $opts cciss.$ctr
        done
        ;;
    cciss.[0-7])
        [ -d cciss ] || {
            mkdir cciss
            chown root.root cciss
            chmod 755 cciss
        }
        unit=`suffix $arg cciss.`
        major=`math 104 + $unit`
        minor=0
        for ld in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
        do
            makedev cciss/c${unit}d${ld} b $major $minor $disk
            minor=`math $minor + 1`
            for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
            do
            makedev cciss/c${unit}d${ld}p$part b $major $minor $disk
            minor=`math $minor + 1`
            done
        done
        ;;
    rom)
        major=`Major rom 31`
        for i in 0 1 2 3 4 5 6 7
        do
            makedev rom$i    b $major $i $disk
            makedev rrom$i   b $major `math $i +8` $disk
            makedev flash$i  b $major `math $i +16` $disk
            makedev rflash$i b $major `math $i +24` $disk
        done
        ;;
    nb[0-7])
        major=`Major nbd 43` || continue
        minor=`suffix $arg nb`
        makedev nb$minor b $major $minor $disk
        ;;
    loop)
        for part in 0 1 2 3 4 5 6 7
        do
            makedev loop$part b 7 $part $disk
        done
        ;;
    md)
        major=`Major md 9` || continue
        for part in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
        do
            makedev md$part b $major $part $disk
        done
        ;;
    st[0-7])
        major=`Major st 9`
        unit=`suffix $arg st`
        makedev st${unit}   c $major $unit $tape
        makedev nst${unit}  c $major `math 128 + $unit` $tape

        makedev st${unit}l  c $major `math 32 + $unit` $tape
        makedev nst${unit}l c $major `math 160 + $unit` $tape

        makedev st${unit}m  c $major `math 64 + $unit` $tape
        makedev nst${unit}m c $major `math 192 + $unit` $tape

        makedev st${unit}a  c $major `math 96 + $unit` $tape
        makedev nst${unit}a c $major `math 224 + $unit` $tape
        ;;
    qic)
        major=`Major tpqic02 12`
        makedev ntpqic11   c $major   2 $tape
        makedev tpqic11    c $major   3 $tape
        makedev ntpqic24   c $major   4 $tape
        makedev tpqic24    c $major   5 $tape
        makedev ntpqic120  c $major   6 $tape
        makedev tpqic120   c $major   7 $tape
        makedev ntpqic150  c $major   8 $tape
        makedev tpqic150   c $major   9 $tape
        makedev rmt8       c $major   6 $tape
        makedev rmt16      c $major   8 $tape
        makedev tape-d     c $major 136 $tape
        makedev tape-reset c $major 255 $tape
        $0 $opts qft
        ;;
    ftape)
        major=`Major qft 27` || continue
        for unit in 0 1 2 3
        do
            makedev qft$unit     c $major $unit $tape
            makedev nqft$unit    c $major `math $unit + 4` $tape
            makedev zqft$unit    c $major `math $unit + 16` $tape
            makedev nzqft$unit   c $major `math $unit + 20` $tape
            makedev rawqft$unit  c $major `math $unit + 32` $tape
            makedev nrawqft$unit c $major `math $unit + 36` $tape
        done
        symlink ftape qft0
        symlink nftape nqft0
        ;;
    sr|scd|scd-all)
        major=`Major sr 11` || continue
        for unit in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
        do
            makedev scd$unit b $major $unit $cdrom
            symlink sr$unit scd$unit
        done
        ;;
    pktcdvd)
        major=97
        for unit in 0 1 2 3
        do
            makedev pktcdvd$unit b $major $unit $cdrom
        done
        ;;
    cfs0)
        makedev cfs0 c 67 0 $coda
        ;;
    scd[0-9]|scd[0-1][0-9])
        major=`Major sr 11` || continue
        unit=`suffix $arg scd`
        makedev scd$unit b $major $unit $cdrom
        ln -f scd$unit sr$unit
        ;;
    ttyI[0-9]|ttyI[1-5][0-9]|ttyI[6][0-3])
        major=43
        unit=`suffix $arg ttyI`
        makedev ttyI$unit c $major $unit $dialout
        ;;
    ppp)
        major=108
        makedev ppp c $major 0 $dip
        ;;
    ippp[0-9]|ippp[1-5][0-9]|ippp[6][0-3])
        major=45
        unit=`suffix $arg ippp`
        minor=`math $unit + 128`
        makedev ippp$unit c $major $minor $dialout
        ;;
    isdn[0-9]|isdn[1-5][0-9]|isdn[6][0-3])
        major=45
        unit=`suffix $arg isdn`
        minor=`math $unit + 0`
        makedev isdn$unit c $major $minor $dialout
        ;;
    isdnctrl[0-9]|isdnctrl[1-5][0-9]|isdnctrl[6][0-3])
        major=45
        unit=`suffix $arg isdnctrl`
        minor=`math $unit + 64`
        makedev isdnctrl$unit c $major $minor $dialout
        ;;
    isdninfo)
        makedev isdninfo c 45 255 $private
        ;;
    isdn-tty)
        major=43
        for unit in 0 1 2 3 4 5 6 7
        do
            makedev ttyI$unit c $major $unit $dialout
        done
        ;;
    isdn-ippp)
        major=45
        for unit in 0 1 2 3 4 5 6 7
        do
            makedev ippp$unit c $major `math $unit + 128` $dialout
        done
        ;;
    isdn-io)
        for unit in 0 1 2 3 4 5 6 7
        do
            makedev isdn$unit c 45 $unit $dialout
            makedev isdnctrl$unit c 45 `math $unit + 64` $dialout
            makedev ippp$unit c 45 `math $unit + 128` $dialout
        done
        makedev isdninfo c 45 255 $dialout
        ;;
    sonycd)
        major=`Major sonycd 15` || continue
        makedev $arg b $major 0 $cdrom
        ;;
    mcd)
        major=`Major mcd 23` || continue
        makedev $arg b $major 0 $cdrom
        ;;
    mcdx|mcdx[0-4])
        major=`Major $arg 20` || continue
        for unit in 0 1 2 3 4
        do
            makedev mcdx$unit b $major $unit $cdrom
        done
        test -r mcdx || symlink mcdx mcdx0
        ;;
    cdu535)
        makedev $arg b 24 0 $cdrom
        ;;
    lmscd)
        makedev $arg b 24 0 $cdrom
        ;;
    sbpcd|sbpcd[123])
        major=`Major $arg 25` || continue
        base=`suffix ${arg}0 sbpcd`
        for minor in 0 1 2 3
        do
            # XXX
            unit=$(substr 0123456789abcdef $(( $base * 4 + $minor + 1 )) )
            makedev sbpcd$unit b $major $minor $cdrom
        done
        [ $arg = sbpcd ] && symlink $arg ${arg}0
        ;;
    aztcd)
        major=`Major $arg 29` || continue
        makedev ${arg}0 b $major 0 $cdrom
        ;;
    cm206cd)
        major=`Major $arg 30` || continue
        makedev ${arg}0 b $major 0 $cdrom
        ;;
    gscd)
        major=`Major $arg 16` || continue
        makedev ${arg}0 b $major 0 $cdrom
        ;;
    pcd)
        for unit in 0 1 2 3
        do
            makedev pcd$unit b 46 $unit $cdrom
        done
        ;;
    bpcd)
        makedev $arg b 41 0 $cdrom
        ;;
    optcd)
        makedev $arg b 17 0 $cdrom
        ;;
    sjcd)
        makedev $arg b 18 0 $cdrom
        ;;
    cfs|coda)
        makedev cfs0 c 67 0 $private
        ;;
    xfs|arla)
        makedev xfs0 c 103 0 $private
        ;;
    logiscan)
        major=`Major logiscan` || continue
        makedev $arg c $major 0 $scanner
        ;;
    toshiba)
        major=`Major $arg 10` || continue
        makedev $arg c $major 181 root root 0666
        ;;
    m105scan)
        major=`Major m105` || continue
        makedev $arg c $major 0 $scanner
        ;;
    ac4096)
        major=`Major ac4096` || continue
        makedev $arg c $major 0 $scanner
        ;;
    audio)
        major=`Major sound 14`
        makedev mixer      c $major  0 $audio
        makedev mixer1     c $major 16 $audio
        makedev mixer2     c $major 32 $audio
        makedev mixer3     c $major 48 $audio
        makedev sequencer  c $major  1 $audio
        makedev midi00     c $major  2 $audio
        makedev midi01     c $major 18 $audio
        makedev midi02     c $major 34 $audio
        makedev midi03     c $major 50 $audio
        makedev dsp        c $major  3 $audio
        makedev dsp1       c $major 19 $audio
        makedev dsp2       c $major 35 $audio
        makedev dsp3       c $major 51 $audio
        makedev audio      c $major  4 $audio
        makedev audio1     c $major 20 $audio
        makedev audio2     c $major 36 $audio
        makedev audio3     c $major 52 $audio
        makedev sndstat    c $major  6 $audio
        makedev audioctl   c $major  7 $audio
        major=31
        makedev mpu401data c $major 0  $audio
        makedev mpu401stat c $major 1  $audio
        major=35
        for i in 0 1 2 3
        do
            makedev midi$i  c $major $i $audio
            makedev rmidi$i c $major `math $i + 64` $audio
            makedev smpte$i c $major `math $i + 128` $audio
        done
        ;;
    pcaudio)
        major=`Major pcsp 13` || continue
        makedev pcmixer c $major 0 $audio
        makedev pcsp    c $major 3 $audio
        makedev pcaudio c $major 4 $audio
        ;;
    video|video4linux|v4l|radio)
        # video4linux api includes radio, teletext, etc.
        major=`Major video 81` || continue
        minor=0
        until [ $minor -gt 63 ]
        do
            makedev video$minor c $major $minor $video
            makedev radio$minor c $major `math $minor + 64` $video
            minor=`math $minor + 1`
        done
        symlink radio radio0
        minor=0
        until [ $minor -gt 31 ]
        do
            makedev vtx$minor c $major `math $minor + 192` $video
            makedev vbi$minor c $major `math $minor + 224` $video
            minor=`math $minor + 1`
        done
        symlink video video0
        symlink vbi vbi0
        major=82
        minor=0
        until [ $minor -gt 1 ]
        do
            makedev winradio$minor c $major $minor $video
            minor=`math $minor + 1`
        done
        major=83
        makedev vtx     c $major 0 $video
        makedev vttuner c $major 16 $video
        ;;
    i2c)
        # making it possible to create an arbitrary number of i2c
        # devices might be good, but 8 should suffice for now
        major=`Major i2c 89` || continue
        minor=0
        until [ $minor -gt 7 ]
        do
            makedev i2c-$minor c $major $minor $private
            minor=`math $minor + 1`
        done
        ;;
    tlk)
        major=102
        minor=0
        until [ $minor -gt 3 ] # tell me if 3 is wrong...
        do
            makedev tlk$minor c $major $minor $video
            minor=`math $minor + 1`
        done
        ;;
    srnd)
        makedev srnd0 c 110 0 $video
        makedev srnd1 c 110 1 $video
        ;;
    fgrab)
        makedev mmetfgrab c 40 0 $video
        makedev wvisfgrab c 26 0 $video
        for i in 0 1 # more?
        do
            makedev iscc$i    c 93 $i $video
            makedev isccctl$i c 93 `math $i + 128` $video
        done
        for i in 0 1 # more?
        do
            makedev dcxx$i c 94 $i $video
        done
        ;;
    sg|sg-all)
        major=`Major sg 21`
        for unit in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
        do
            makedev sg$unit c $major $unit $scsi
        done
        ;;
    pg)
        major=`Major pg 97`
        for unit in 0 1 2 3
        do
            makedev pg$unit c $major $unit $scsi
        done
        ;;
    fd)
        # not really devices, we use the /proc filesystem
        symlink fd     $procfs/self/fd
        symlink stdin  fd/0
        symlink stdout fd/1
        symlink stderr fd/2
        ;;
    ibcs2)
        major=`Major ibcs2 30` || continue
        makedev socksys c $major 0 $ibcs2
        symlink nfsd socksys
        makedev spx     c $major 1 $ibcs2
        symlink X0R null
        ;;
    netlink)
        major=36
        makedev route c $major 0 $private
        makedev skip  c $major 1 $private
        ;;
    enskip)
        major=64
        makedev enskip c $major 0 $private
        ;;
    ipfilt*)
        major=95
        makedev ipl     c $major 0 $private
        makedev ipnat   c $major 1 $private
        makedev ipstate c $major 2 $private
        makedev ipauth  c $major 3 $private
        ;;
    qng)
        makedev qng c 77 0 $private
        ;;
    apm)
        major=`Major mouse 10` || continue
        makedev apm_bios  c $major 134 $mouse
        ;;
    dcf)
        major=`Major dcf` || continue
        makedev $arg c $major 0 $system
        ;;
    helloworld)
        major=`Major hw` || continue
        makedev helloworld c $major 0 $public
        ;;
    ipsec)
        # For the Free S/WAN (http://www.xs4all.nl/~freeswan/)
        # implementation of IPSEC
        makedev ipsec c 36 10 $ipsec
        ;;
    comedi)
        major=98
        for minor in 0 1 2 3
        do
            makedev comedi$minor c $major $minor $public
        done
        ;;
    usb)
        mkdir -p usb
        major=180
        for i in 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
        do
            makedev usb/lp$i c $major $i $printer
            makedev usb/mouse$i c $major `math $i + 16` $mouse
            makedev usb/ez$i c $major `math $i + 32` $system
            makedev usb/scanner$i c $major `math $i + 48` $scanner
            makedev ttyACM$i c 166 $i $dialout
            makedev ttyUSB$i c 188 $i $dialout
        done
        makedev usb/rio500 c $major 64 $audio
        ;;
    paride)
                major=45
                for unit in a b c d
        do
                    base=`index abcd $unit`
                    base=`math $base \* 16`
                    makedev pd$unit b $major $base $disk
                    for part in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
                    do
                        makedev pd$unit$part b $major $(( $base + $part )) $disk
                    done
        done
        for i in 0 1 2 3
        do
            makedev pcd$i b 46 $i $cdrom
            makedev pf$i  b 47 $i $floppy
        done
                ;;
    update)
        if [ ! "$devices" ]
        then
            echo "$0: don't appear to have any devices" >&2
            continue
        fi
        if [ "$opt_d" ]
        then
            echo "$0: can't delete an update" >&2
            continue
        fi
        create=
        delete=
        devs="$devices"
        if [ -f DEVICES ]
        then
            exec 3<DEVICES
            while read device major <&3
            do
                eval now=\$major_$device
                if [ "$now" = "" ]
                then
                    delete="$delete `cvt $device`"
                    continue
                elif [ "$now" != $major ]
                then
                    create="$create "`cvt $device`
                fi
                devs=`strip " $devs " $device`
            done
            exec 3<&-
        fi
        create="$create "`cvt $devs`
        [ "$delete" != "" ] && $0 $opts -d $delete
        [ "$create" != " " ] && $0 $opts $create
        [ "$opt_n" ] && continue
        for device in $devices
        do
            if [ "`cvt $device`" ]
            then
                eval echo $device \$major_$device
            fi
        done > DEVICES
        ;;
    *)
        echo "$0: don't know how to make device \"$arg\"" >&2
        exit 1
        ;;
    esac
done

exit 0