kumquat-buildroot/package/busybox/mdev.conf

# null may already exist; therefore ownership has to be changed with command
null		root:root 666 @chmod 666 $MDEV
zero		root:root 666
full		root:root 666
random		root:root 444
urandom		root:root 444
hwrandom	root:root 444
grsec		root:root 660

kmem		root:root 640
mem		root:root 640
port		root:root 640
# console may already exist; therefore ownership has to be changed with command
console		root:tty 600 @chmod 600 $MDEV
ptmx		root:tty 666
pty.*		root:tty 660

# Typical devices
tty		root:tty 666
tty[0-9]*	root:tty 660
vcsa*[0-9]*	root:tty 660
ttyS[0-9]*	root:root 660
ttyUSB[0-9]*	root:root 660

# alsa sound devices
pcm.*		root:audio 660 =snd/
control.*	root:audio 660 =snd/
midi.*		root:audio 660 =snd/
seq		root:audio 660 =snd/
timer		root:audio 660 =snd/

# input stuff
event[0-9]+	root:root 640 =input/
mice		root:root 640 =input/
mouse[0-9]	root:root 640 =input/
ts[0-9]		root:root 600 =input/

# load modules
$MODALIAS=.*	root:root 660 @modprobe "$MODALIAS"