systemd-stable/etc/udev/redhat/udev.rules

# There are a number of modifiers that are allowed to be used in some of the
# fields.  See the udev man page for a full description of them.
#
# default is OWNER="root" GROUP="root", MODE="0600"
#

# all block devices
SUBSYSTEM=="block",		GROUP="disk", MODE="0640"

# console devices
KERNEL=="tty",			MODE="0666"
KERNEL=="tty[0-9]",		GROUP="tty", MODE="0660"
KERNEL=="tty[0-9][0-9]*",	GROUP="tty", MODE="0660"
KERNEL=="vc/[0-9]*",		GROUP="tty", MODE="0660"

# pty devices
#  Set this to 0660 if you only want users belonging to tty group
#  to be able to allocate PTYs
KERNEL=="ptmx",			GROUP="tty", MODE="0666"
KERNEL=="pty[p-za-e][0-9a-f]*",	GROUP="tty", MODE="0660"
KERNEL=="tty[p-za-e][0-9a-f]*",	GROUP="tty", MODE="0660"
KERNEL=="pty/m*",		GROUP="tty", MODE="0660"
KERNEL=="vc/s*",		GROUP="tty", MODE="0660"

# serial+dialup devices
KERNEL=="ttyS*",		GROUP="uucp", MODE="0660"
KERNEL=="ippp*",		MODE="0660"
KERNEL=="isdn*",		MODE="0660"
KERNEL=="isdnctrl*",		MODE="0660"
KERNEL=="capi*",		MODE="0660"
KERNEL=="dcbri*",		MODE="0660"
KERNEL=="ircomm*",		GROUP="uucp", MODE="0660"
KERNEL=="ttyUSB*",		GROUP="uucp", MODE="0660"
KERNEL=="tts/[0-9]*",		GROUP="uucp", MODE="0660"
KERNEL=="tts/USB[0-9]*",	GROUP="uucp", MODE="0660"

# vc devices
KERNEL=="vcs",			OWNER="vcsa", GROUP="tty"
KERNEL=="vcs[0-9]*",		OWNER="vcsa", GROUP="tty"
KERNEL=="vcsa",			OWNER="vcsa", GROUP="tty"
KERNEL=="vcsa[0-9]*",		OWNER="vcsa", GROUP="tty"
KERNEL=="vcc/*",		OWNER="vcsa", GROUP="tty"

# memory devices
KERNEL=="random",		MODE="0666"
KERNEL=="urandom",		MODE="0444"
KERNEL=="mem",			GROUP="kmem", MODE="0640"
KERNEL=="kmem",			GROUP="kmem", MODE="0640"
KERNEL=="port",			GROUP="kmem", MODE="0640"
KERNEL=="full",			MODE="0666"
KERNEL=="null",			MODE="0666"
KERNEL=="zero",			MODE="0666"

# misc devices
KERNEL=="nvram",		MODE="0660"
KERNEL=="rtc",			MODE="0644"

# floppy devices
KERNEL=="fd[01]*",		GROUP="floppy", MODE="0660"

# audio devices
KERNEL=="dsp*",			MODE="0660"
KERNEL=="audio*",		MODE="0660"
KERNEL=="midi*",		MODE="0660"
KERNEL=="mixer*",		MODE="0660"
KERNEL=="sequencer*",		MODE="0660"
KERNEL=="sound/*",		MODE="0660"
KERNEL=="snd/*",		MODE="0660"
KERNEL=="beep",			MODE="0660"
KERNEL=="admm*",		MODE="0660"
KERNEL=="adsp*",		MODE="0660"
KERNEL=="aload*",		MODE="0660"
KERNEL=="amidi*",		MODE="0660"
KERNEL=="dmfm*",		MODE="0660"
KERNEL=="dmmidi*",		MODE="0660"
KERNEL=="sndstat",		MODE="0660"

# pilot/palm devices
KERNEL=="pilot",		GROUP="uucp", MODE="0660"

# lp devices
KERNEL=="lp*",			GROUP="lp", MODE="0660"
KERNEL=="parport*",		GROUP="lp", MODE="0660"
KERNEL=="irlpt*",		GROUP="lp", MODE="0660"
KERNEL=="usblp*",		GROUP="lp", MODE="0660"
KERNEL=="usb/lp*",		GROUP="lp", MODE="0660"

# tape devices
KERNEL=="ht*",			GROUP="disk", MODE="0640"
KERNEL=="nht*",			GROUP="disk", MODE="0640"
KERNEL=="pt[0-9]*",		GROUP="disk", MODE="0640"
KERNEL=="npt*",			GROUP="disk", MODE="0640"
KERNEL=="st*",			GROUP="disk", MODE="0640"
KERNEL=="nst*",			GROUP="disk", MODE="0640"
KERNEL=="osst*",		GROUP="disk", MODE="0640"
KERNEL=="nosst*",		GROUP="disk", MODE="0640"

# diskonkey devices
KERNEL=="diskonkey*",		GROUP="disk", MODE="0640"

# rem_ide devices
KERNEL=="microdrive*",		GROUP="disk", MODE="0640"

# kbd devices
KERNEL=="kbd",			MODE="0644"

# joystick devices
KERNEL=="js[0-9]*",		MODE="0644"
KERNEL=="djs[0-9]*",		MODE="0644"

# v4l devices
KERNEL=="video*",		MODE="0660"
KERNEL=="radio*",		MODE="0660"
KERNEL=="winradio*",		MODE="0660"
KERNEL=="vtx*",			MODE="0660"
KERNEL=="vbi*",			MODE="0660"
KERNEL=="video/*",		MODE="0660"
KERNEL=="vttuner",		MODE="0660"
KERNEL=="v4l/*",		MODE="0660"

# input devices
KERNEL=="input/*",		MODE="0644"

# gpm devices
KERNEL=="gpmctl",		MODE="0700"

# dri devices
KERNEL=="nvidia*",		MODE="0660"
KERNEL=="3dfx*",		MODE="0660"
KERNEL=="dri/*",		MODE="0666"

# usb devices
KERNEL=="usb/dabusb*",		GROUP="usb", MODE="0660"
KERNEL=="usb/mdc800*",		GROUP="usb", MODE="0660"
KERNEL=="usb/rio500",		GROUP="usb", MODE="0660"

# s390 devices
KERNEL=="z90crypt",		MODE="0666"

# DVB
KERNEL=="dvb/*",		MODE="0660"
KERNEL=="dvb",			MODE="0660"
KERNEL=="dvb/adapter*",		MODE="0660"

# create a symlink named after the device map name
# note devmap_name comes with extras/multipath
#KERNEL=="dm-[0-9]*", PROGRAM="/sbin/devmap_name %M %m", NAME="%k", SYMLINK="%c"

# DRI devices always go into a subdirectory (as per the LSB spec)
KERNEL=="card*",		NAME="dri/card%n"

# alsa devices
KERNEL=="controlC[0-9]*",	NAME="snd/%k"
KERNEL=="hw[CD0-9]*",		NAME="snd/%k"
KERNEL=="pcm[CD0-9cp]*",	NAME="snd/%k"
KERNEL=="midi[CD0-9]*",		NAME="snd/%k"
KERNEL=="timer",		NAME="snd/%k"
KERNEL=="seq",			NAME="snd/%k"

# input devices
KERNEL=="mice",			NAME="input/%k"
KERNEL=="mouse*",		NAME="input/%k"
KERNEL=="event*",		NAME="input/%k"
KERNEL=="js*",			NAME="input/%k"
KERNEL=="ts*",			NAME="input/%k"

KERNEL=="raw[0-9]*",		NAME="raw/%k"

KERNEL=="lp[0-9]*",		SYMLINK="par%n"
BUS=="usb", KERNEL=="lp[0-9]*",	NAME="usb/%k"

KERNEL=="microcode",		NAME="cpu/%k"
KERNEL=="ram1",			SYMLINK="ram"
KERNEL=="video0",		SYMLINK="video"
KERNEL=="radio0",		SYMLINK="radio"
KERNEL=="audio0",		SYMLINK="audio"
KERNEL=="dsp0",			SYMLINK="dsp"
KERNEL=="fb0",			SYMLINK="fb"
KERNEL=="qft0",			SYMLINK="ftape"
KERNEL=="isdnctrl0",		SYMLINK="isdnctrl"
KERNEL=="mixer0",		SYMLINK="mixer"
KERNEL=="ram0",			SYMLINK="ramdisk"
KERNEL=="sbpcd0",		SYMLINK="sbpcd"
KERNEL=="radio0",		SYMLINK="radio"
KERNEL=="tty0",			SYMLINK="systty"
KERNEL=="vbi0",			SYMLINK="vbi"
KERNEL=="null",			SYMLINK="XOR"

KERNEL=="tun",			NAME="net/%k"

KERNEL=="device-mapper",	NAME="mapper/control"

# old compat symlinks with enumeration
KERNEL=="sr[0-9]*",		SYMLINK="cdrom%e"
KERNEL=="scd[0-9]*",		SYMLINK="cdrom%e"
KERNEL=="pcd[0-9]*",		SYMLINK="cdrom%e"
KERNEL=="fd[0-9]*",		SYMLINK="floppy%e"
KERNEL=="nst[0-9]",		SYMLINK="tape%e"
KERNEL=="nosst[0-9]*",		SYMLINK="tape%e"

# do not seperate the next 2 lines!!
KERNEL=="hd[a-z]", BUS=="ide", SYSFS{removable}=="1", PROGRAM=="/etc/udev/scripts/ide-media.sh %k", RESULT=="floppy", SYMLINK="floppy%e", NAME{ignore_remove, all_partitions}="%k"

KERNEL=="hd[a-z]", BUS=="ide", SYSFS{removable}=="1", RESULT=="cdrom", SYMLINK="cdrom%e"

KERNEL=="hd[a-z]", BUS=="ide", SYSFS{removable}=="1", PROGRAM=="/etc/udev/scripts/check-cdrom.sh %k DVD", SYMLINK="dvd%e"
KERNEL=="sr[0-9]*", BUS=="scsi", PROGRAM=="/etc/udev/scripts/check-cdrom.sh %k DVD", SYMLINK="dvd%e"

KERNEL=="hd[a-z]", BUS=="ide", SYSFS{removable}=="1", PROGRAM=="/etc/udev/scripts/check-cdrom.sh %k CD-R", SYMLINK="cdwriter%e"
KERNEL=="sr[0-9]*", BUS=="scsi", PROGRAM=="/etc/udev/scripts/check-cdrom.sh %k CD-R", SYMLINK="cdwriter%e"

KERNEL=="hd[a-z]", BUS=="ide", SYSFS{removable}=="1", PROGRAM="/etc/udev/scripts/check-cdrom.sh %k DVD-R", SYMLINK="dvdwriter%e"
KERNEL=="sr[0-9]*", BUS=="scsi", PROGRAM=="/etc/udev/scripts/check-cdrom.sh %k DVD-R", SYMLINK="dvdwriter%e"

# rename sr* to scd*
KERNEL=="sr[0-9]*", BUS=="scsi", NAME="scd%n"
KERNEL=="hd[a-z]*", BUS=="ide", SYSFS{removable}=="1", NAME{ignore_remove}="%k"

KERNEL=="dvb*", PROGRAM=="/etc/udev/scripts/dvb.sh %k", NAME="%c"