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# mdev-like-a-boss
# Syntax:
# [-]devicename_regex user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]
# [-]$ENVVAR=regex user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]
# [-]@maj,min[-min2] user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]
#
# [-]: do not stop on this match, continue reading mdev.conf
# =: move, >: move and create a symlink
# !: do not create device node
# @|$|*: run cmd if $ACTION=remove, @cmd if $ACTION=add, *cmd in all cases
# support module loading on hotplug
$MODALIAS=.* root:root 660 @modprobe -b "$MODALIAS"
# 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
# Kernel-based Virtual Machine.
kvm root:kvm 660
# vhost-net, to be used with kvm.
vhost-net root:kvm 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:tty 660
# block devices
ram([0-9]*) root:disk 660 >rd/%1
loop([0-9]+) root:disk 660 >loop/%1
sd[a-z].* root:disk 660 */opt/mdev/helpers/storage-device
vd[a-z].* root:disk 660 */opt/mdev/helpers/storage-device
hd[a-z].* root:disk 660 */opt/mdev/helpers/storage-device
md[0-9]* root:disk 660 */opt/mdev/helpers/storage-device
dm-[0-9]* root:disk 660 */opt/mdev/helpers/storage-device
bcache[0-9]* root:disk 660 */opt/mdev/helpers/storage-device
mmcblk[0-9].* root:disk 660 */opt/mdev/helpers/storage-device
sr[0-9]* root:cdrom 660 @ln -sf $MDEV cdrom
fd[0-9]* root:floppy 660
# Run settle-nics every time new NIC appear.
# If you don't want to auto-populate /etc/mactab with NICs, run 'settle-nis' without '--write-mactab' param.
-SUBSYSTEM=net;DEVPATH=.*/net/.*;.* root:root 600 @/opt/mdev/helpers/settle-nics --write-mactab
net/tun[0-9]* root:kvm 660
net/tap[0-9]* root:root 600
# alsa sound devices and audio stuff
SUBSYSTEM=sound;.* root:audio 660 @/opt/mdev/helpers/sound-control
adsp root:audio 660 >sound/
audio root:audio 660 >sound/
dsp root:audio 660 >sound/
mixer root:audio 660 >sound/
sequencer.* root:audio 660 >sound/
# raid controllers
cciss!(.*) root:disk 660 =cciss/%1
ida!(.*) root:disk 660 =ida/%1
rd!(.*) root:disk 660 =rd/%1
fuse root:root 666
card[0-9] root:video 660 =dri/
agpgart root:root 660 >misc/
psaux root:root 660 >misc/
rtc root:root 664 >misc/
# input stuff
SUBSYSTEM=input;.* root:input 660
# v4l stuff
vbi[0-9] root:video 660 >v4l/
video[0-9] root:video 660 >v4l/
# dvb stuff
dvb.* root:video 660
# drm etc
dri/.* root:video 660
# Don't create old usbdev* devices.
usbdev[0-9].[0-9]* root:root 660 !
# Stop creating x:x:x:x which looks like /dev/dm-*
[0-9]+\:[0-9]+\:[0-9]+\:[0-9]+ root:root 660 !
# /dev/cpu support.
microcode root:root 600 =cpu/
cpu([0-9]+) root:root 600 =cpu/%1/cpuid
msr([0-9]+) root:root 600 =cpu/%1/msr
# Populate /dev/bus/usb.
SUBSYSTEM=usb;DEVTYPE=usb_device;.* root:root 660 */opt/mdev/helpers/dev-bus-usb
# Catch-all other devices, Right now useful only for debuging.
#.* root:root 660 */opt/mdev/helpers/catch-all