7.3. Configure mdev

7.3.1. Creating /etc/mdev.conf

Now we will create the mdev.conf file for use with our system:

cat > ${CLFS}/targetfs/etc/mdev.conf<< "EOF"
# /etc/mdev/conf

# Devices:
# Syntax: %s %d:%d %s
# devices user:group mode

# null does already exist; therefore ownership has to be changed with command
null    root:root 0666  @chmod 666 $MDEV
zero    root:root 0666
grsec   root:root 0660
full    root:root 0666

random  root:root 0666
urandom root:root 0444
hwrandom root:root 0660

# console does already exist; therefore ownership has to be changed with command
#console        root:tty 0600   @chmod 600 $MDEV && mkdir -p vc && ln -sf ../$MDEV vc/0
console root:tty 0600 @mkdir -pm 755 fd && cd fd && for x in 0 1 2 3 ; do ln -sf /proc/self/fd/$x $x; done

fd0     root:floppy 0660
kmem    root:root 0640
mem     root:root 0640
port    root:root 0640
ptmx    root:tty 0666

# ram.*
ram([0-9]*)     root:disk 0660 >rd/%1
loop([0-9]+)    root:disk 0660 >loop/%1
sd[a-z].*       root:disk 0660 */lib/mdev/usbdisk_link
hd[a-z][0-9]*   root:disk 0660 */lib/mdev/ide_links
md[0-9]         root:disk 0660

tty             root:tty 0666
tty[0-9]        root:root 0600
tty[0-9][0-9]   root:tty 0660
ttyS[0-9]*      root:tty 0660
pty.*           root:tty 0660
vcs[0-9]*       root:tty 0660
vcsa[0-9]*      root:tty 0660

ttyLTM[0-9]     root:dialout 0660 @ln -sf $MDEV modem
ttySHSF[0-9]    root:dialout 0660 @ln -sf $MDEV modem
slamr           root:dialout 0660 @ln -sf $MDEV slamr0
slusb           root:dialout 0660 @ln -sf $MDEV slusb0
fuse            root:root  0666

# dri device
card[0-9]       root:video 0660 =dri/

# alsa sound devices and audio stuff
pcm.*           root:audio 0660 =snd/
control.*       root:audio 0660 =snd/
midi.*          root:audio 0660 =snd/
seq             root:audio 0660 =snd/
timer           root:audio 0660 =snd/

adsp            root:audio 0660 >sound/
audio           root:audio 0660 >sound/
dsp             root:audio 0660 >sound/
mixer           root:audio 0660 >sound/
sequencer.*     root:audio 0660 >sound/

# misc stuff
agpgart         root:root 0660  >misc/
psaux           root:root 0660  >misc/
rtc             root:root 0664  >misc/

# input stuff
event[0-9]+     root:root 0640 =input/
mice            root:root 0640 =input/
mouse[0-9]      root:root 0640 =input/
ts[0-9]         root:root 0600 =input/

# v4l stuff
vbi[0-9]        root:video 0660 >v4l/
video[0-9]      root:video 0660 >v4l/

# dvb stuff
dvb.*           root:video 0660 */lib/mdev/dvbdev

# load drivers for usb devices
usbdev[0-9].[0-9]       root:root 0660 */lib/mdev/usbdev
usbdev[0-9].[0-9]_.*    root:root 0660

# net devices
tun[0-9]*       root:root 0600 =net/
tap[0-9]*       root:root 0600 =net/

# zaptel devices
zap(.*)         root:dialout 0660 =zap/%1
dahdi!(.*)      root:dialout 0660 =dahdi/%1

# raid controllers
cciss!(.*)      root:disk 0660 =cciss/%1
ida!(.*)        root:disk 0660 =ida/%1
rd!(.*)         root:disk 0660 =rd/%1

sr[0-9]         root:cdrom 0660 @ln -sf $MDEV cdrom 

# hpilo
hpilo!(.*)      root:root 0660 =hpilo/%1

# xen stuff
xvd[a-z]        root:root 0660 */lib/mdev/xvd_links
EOF