systemd/rules/rules.d/50-udev-default.rules

# do not edit this file, it will be overwritten on update

SUBSYSTEM=="block", SYMLINK+="block/%M:%m"
SUBSYSTEM!="block", SYMLINK+="char/%M:%m"

KERNEL=="pty[pqrstuvwxyzabcdef][0123456789abcdef]", GROUP="tty", MODE="0660"
KERNEL=="tty[pqrstuvwxyzabcdef][0123456789abcdef]", GROUP="tty", MODE="0660"
KERNEL=="ptmx",			GROUP="tty", MODE="0666"
KERNEL=="tty",			GROUP="tty", MODE="0666"
KERNEL=="tty[0-9]*",		GROUP="tty", MODE="0620"
KERNEL=="console",		MODE="0600"
KERNEL=="vcs|vcs[0-9]*|vcsa|vcsa[0-9]*", GROUP="tty"

# serial
KERNEL=="tty[A-Z]*[0-9]|pppox[0-9]*|ircomm[0-9]*|noz[0-9]*|rfcomm[0-9]*", GROUP="dialout"
KERNEL=="ppp",			MODE="0600"
KERNEL=="mwave",		NAME="modems/mwave", GROUP="dialout"
KERNEL=="hvc*|hvsi*",		GROUP="dialout"

# mem
KERNEL=="null|zero|full|random|urandom", MODE="0666"
KERNEL=="mem|kmem|port|nvram",	GROUP="kmem", MODE="0640"

# input
KERNEL=="mouse*|mice|event*",	NAME="input/%k", MODE="0640"
KERNEL=="ts[0-9]*|uinput",	NAME="input/%k", MODE="0640"
KERNEL=="js[0-9]*",		NAME="input/%k", MODE="0644"

# video4linux
SUBSYSTEM=="video4linux",	GROUP="video"
KERNEL=="vttuner*",		GROUP="video"
KERNEL=="vtx*|vbi*",		GROUP="video"
KERNEL=="winradio*",		GROUP="video"

# graphics
KERNEL=="agpgart",		MODE="0600", GROUP="video"
KERNEL=="card[0-9]*",		NAME="dri/%k"
KERNEL=="pmu",			GROUP="video"
KERNEL=="nvidia*|nvidiactl*",	GROUP="video"
SUBSYSTEM=="graphics",		GROUP="video"
SUBSYSTEM=="drm",		GROUP="video"

# DVB (video)
SUBSYSTEM=="dvb", ENV{DVB_ADAPTER_NUM}=="?*", NAME="dvb/adapter$env{DVB_ADAPTER_NUM}/$env{DVB_DEVICE_TYPE}$env{DVB_DEVICE_NUM}", GROUP="video"

# Firewire
KERNEL=="dv1394[0-9]*",		NAME="dv1394/%n", GROUP="video"
KERNEL=="video1394[0-9]*",	NAME="video1394/%n", GROUP="video"

# libusb device nodes
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", NAME="bus/usb/$env{BUSNUM}/$env{DEVNUM}", MODE="0664"

# printer
KERNEL=="parport[0-9]*",	GROUP="lp"
SUBSYSTEM=="printer",		KERNEL=="lp*", GROUP="lp"
SUBSYSTEM=="ppdev",		GROUP="lp"
SUBSYSTEM=="usb",		KERNEL=="lp*", NAME="usb/%k", SYMLINK+="usb%k", GROUP="lp"
KERNEL=="lp[0-9]*",		GROUP="lp"
KERNEL=="irlpt[0-9]*",		GROUP="lp"

# block
SUBSYSTEM=="block", GROUP="disk"

# floppy
KERNEL=="fd[0-9]", GROUP="floppy"
KERNEL=="fd[0-9]", ACTION=="add", ATTRS{cmos}=="?*", RUN+="create_floppy_devices -c -t $attr{cmos} -m %M -M 0640 -G floppy $root/%k"
KERNEL=="hd*", SUBSYSTEMS=="ide", ATTRS{media}=="floppy", OPTIONS+="all_partitions"

# cdrom
SUBSYSTEM=="block", KERNEL=="sr[0-9]*", SYMLINK+="scd%n", GROUP="cdrom"
SUBSYSTEM=="block", KERNEL=="hd*", SUBSYSTEMS=="ide", ATTRS{media}=="cdrom", GROUP="cdrom"
SUBSYSTEMS=="scsi", ATTRS{type}=="4|5", GROUP="cdrom"
KERNEL=="pktcdvd[0-9]*", NAME="pktcdvd/%k", GROUP="cdrom"
KERNEL=="pktcdvd", NAME="pktcdvd/control", GROUP="cdrom"

# tape
KERNEL=="ht[0-9]*|nht[0-9]*", GROUP="tape"
KERNEL=="pt[0-9]*|npt[0-9]*|pht[0-9]*", GROUP="tape"
SUBSYSTEMS=="scsi", ATTRS{type}=="1|8", GROUP="tape"

# block-releated
KERNEL=="sch[0-9]*", GROUP="disk"
SUBSYSTEMS=="scsi", ATTRS{type}=="0", GROUP="disk"
KERNEL=="pg[0-9]*", GROUP="disk"
KERNEL=="qft[0-9]*|nqft[0-9]*|zqft[0-9]*|nzqft[0-9]*|rawqft[0-9]*|nrawqft[0-9]*", GROUP="disk"
KERNEL=="rawctl", NAME="raw/rawctl", GROUP="disk"
SUBSYSTEM=="raw", KERNEL=="raw[0-9]*", NAME="raw/%k", GROUP="disk"
SUBSYSTEM=="bsg", NAME="bsg/%k"
SUBSYSTEM=="aoe", NAME="etherd/%k", GROUP="disk", MODE="0220"
SUBSYSTEM=="aoe", KERNEL=="err", MODE="0440"

# network
KERNEL=="tun",			NAME="net/%k", MODE="0666"

# CPU
KERNEL=="cpu[0-9]*",		NAME="cpu/%n/cpuid", MODE="0444"
KERNEL=="msr[0-9]*",		NAME="cpu/%n/msr"
KERNEL=="microcode",		NAME="cpu/microcode", MODE="0600"

# miscellaneous
KERNEL=="fuse",			MODE="0666"
SUBSYSTEM=="rtc", DRIVERS=="rtc_cmos", SYMLINK+="rtc"
KERNEL=="auer[0-9]*",		NAME="usb/%k"
KERNEL=="hw_random",		NAME="hwrng"
KERNEL=="mmtimer",		MODE="0644"
KERNEL=="rflash[0-9]*",		MODE="0400"
KERNEL=="rrom[0-9]*",		MODE="0400"
KERNEL=="sxctl",		NAME="specialix_sxctl"
KERNEL=="rioctl",		NAME="specialix_rioctl"
KERNEL=="iowarrior[0-9]*",	NAME="usb/%k"
KERNEL=="hiddev[0-9]*",		NAME="usb/%k"
KERNEL=="legousbtower[0-9]*",	NAME="usb/%k"
KERNEL=="dabusb[0-9]*",		NAME="usb/%k"
KERNEL=="usbdpfp[0-9]*",	NAME="usb/%k"
KERNEL=="cpad[0-9]*",		NAME="usb/%k"

# do not delete static device nodes
ACTION=="remove", NAME=="?*", TEST=="/lib/udev/devices/$name", OPTIONS+="ignore_remove"
ACTION=="remove", NAME=="", TEST=="/lib/udev/devices/%k", OPTIONS+="ignore_remove"