examples/mdev_fat.conf - busybox - Git at Google


            
            #

            
            # This is a sample mdev.conf

            
            #


            # Provide user, group, and mode information for devices.  If a regex matches

            
            # the device name provided by sysfs, use the appropriate user:group and mode

            
            # instead of the default 0:0 660.

            
            #

            
            # Syntax:

            
            # [-][ENVVAR=regex;]...devicename_regex user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]

            
            # [-][ENVVAR=regex;]...@maj,min[-min2]  user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]

            
            # [-]$ENVVAR=regex                      user:group mode [=path]|[>path]|[!] [@|$|*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

            
            $MODALIAS=.*	root:root 660 @modprobe "$MODALIAS"


            # null may already exist; therefore mode 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 mode 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:uucp 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 */lib/mdev/usbdisk_link

            
            hd[a-z][0-9]*	root:disk 660 */lib/mdev/ide_links

            
            md[0-9]*	root:disk 660

            
            sr[0-9]*	root:cdrom 660 @ln -sf $MDEV cdrom

            
            fd[0-9]*	root:floppy 660


            # net devices

            
            SUBSYSTEM=net;.* root:root 600 @nameif

            
            tun[0-9]*	root:root 600 =net/

            
            tap[0-9]*	root:root 600 =net/


            # alsa sound devices and audio stuff

            
            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/

            
            # for kernels/mdevs which expose full path of alsa devices:

            
            snd/pcm.*	root:audio 660

            
            snd/control.*	root:audio 660

            
            snd/midi.*	root:audio 660

            
            snd/seq		root:audio 660

            
            snd/timer	root:audio 660


            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/


            # Less typical devices


            # raid controllers

            
            cciss!(.*)	root:disk 660 =cciss/%1

            
            ida!(.*)	root:disk 660 =ida/%1

            
            rd!(.*)		root:disk 660 =rd/%1


            ttyLTM[0-9]	root:dialout 660 @ln -sf $MDEV modem

            
            ttySHSF[0-9]	root:dialout 660 @ln -sf $MDEV modem

            
            slamr		root:dialout 660 @ln -sf $MDEV slamr0

            
            slusb		root:dialout 660 @ln -sf $MDEV slusb0


            fuse		root:root 666


            # dri device

            
            card[0-9]	root:video 660 =dri/


            # misc stuff

            
            agpgart		root:root 660 >misc/

            
            psaux		root:root 660 >misc/

            
            rtc		root:root 664 >misc/


            # 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/


            # v4l stuff

            
            vbi[0-9]	root:video 660 >v4l/

            
            video[0-9]	root:video 660 >v4l/


            # dvb stuff

            
            dvb.*		root:video 660 */lib/mdev/dvbdev


            # load drivers for usb devices

            
            usbdev[0-9].[0-9]	root:root 660 */lib/mdev/usbdev

            
            usbdev[0-9].[0-9]_.*	root:root 660


            # zaptel devices

            
            zap(.*)		root:dialout 660 =zap/%1

            
            dahdi!(.*)	root:dialout 660 =dahdi/%1


            # HTC Android

            
            # Attaching it via USB cable causes a flurry of activity:

            
            #

            
            # mdev[1271]: 48.639459 ACTION:add SUBSYSTEM:usb DEVNAME:bus/usb/001/009 DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5

            
            # mdev[1271]: mknod bus/usb/001/009 (189,8) 20660 0:0

            
            # mdev[1272]: 48.642354 ACTION:add SUBSYSTEM:usb DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0

            
            # mdev[1272]: running: modprobe "$MODALIAS"

            
            # mdev[1273]: 48.650078 ACTION:add SUBSYSTEM:scsi DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11

            
            # mdev[1274]: 48.651297 ACTION:add SUBSYSTEM:scsi_host DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11/scsi_host/host11

            
            # mdev[1275]: 49.649422 ACTION:add SUBSYSTEM:scsi DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11/target11:0:0

            
            # mdev[1276]: 49.650703 ACTION:add SUBSYSTEM:scsi DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11/target11:0:0/11:0:0:0

            
            # mdev[1276]: running: modprobe "$MODALIAS"

            
            # modprobe: module scsi:t-0x00 not found in modules.dep

            
            # mdev[1277]: 49.658002 ACTION:add SUBSYSTEM:scsi_disk DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11/target11:0:0/11:0:0:0/scsi_disk/11:0:0:0

            
            # mdev[1278]: 49.659244 ACTION:add SUBSYSTEM:scsi_device DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11/target11:0:0/11:0:0:0/scsi_device/11:0:0:

            
            # mdev[1279]: 49.660535 ACTION:add SUBSYSTEM:bsg DEVNAME:bsg/11:0:0:0 DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11/target11:0:0/11:0:0:0/bsg/11:0:0:0

            
            # mdev[1279]: mknod bsg/11:0:0:0 (253,1) 20660 0:0

            
            # mdev[1280]: 49.663516 ACTION:add SUBSYSTEM:bdi DEVNAME:(null) DEVPATH:/devices/virtual/bdi/8:16

            
            # mdev[1281]: 49.664748 ACTION:add SUBSYSTEM:block DEVNAME:sdb DEVPATH:/block/sdb

            
            # mdev[1281]: mknod sdb (8,16) 60660 0:0

            
            # mdev[1282]: 49.677597 ACTION:change SUBSYSTEM:block DEVNAME:sdb DEVPATH:/block/sdb

            
            # mdev[1283]: 50.692936 ACTION:change SUBSYSTEM:block DEVNAME:sdb DEVPATH:/block/sdb

            
            #

            
            # We are hooking to the last events. To avoid having two scripts running,

            
            # we check for DISK_MEDIA_CHANGE=1 (prev to last event has it,

            
            # and it's the _only_ difference in env for these two events as of kernel 3.7.7)

            
            # Unfortunately, there is no event for "user pressed [Turn USB storage on] btn"!

            
            # Script merely backgrounds and tries to rescan partition table for 1 minute:

            
            ACTION=change;SUBSYSTEM=block;DISK_MEDIA_CHANGE=1;.*    0:0 660 */etc/mdev.conf.change_blockdev.sh
	#
	# This is a sample mdev.conf
	#

	# Provide user, group, and mode information for devices. If a regex matches
	# the device name provided by sysfs, use the appropriate user:group and mode
	# instead of the default 0:0 660.
	#
	# Syntax:
	# [-][ENVVAR=regex;]...devicename_regex user:group mode [=path]\|[>path]\|[!] [@\|$\|*cmd args...]
	# [-][ENVVAR=regex;]...@maj,min[-min2] user:group mode [=path]\|[>path]\|[!] [@\|$\|*cmd args...]
	# [-]$ENVVAR=regex user:group mode [=path]\|[>path]\|[!] [@\|$\|*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
	$MODALIAS=.* root:root 660 @modprobe "$MODALIAS"

	# null may already exist; therefore mode 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 mode 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:uucp 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 */lib/mdev/usbdisk_link
	hd[a-z][0-9]* root:disk 660 */lib/mdev/ide_links
	md[0-9]* root:disk 660
	sr[0-9]* root:cdrom 660 @ln -sf $MDEV cdrom
	fd[0-9]* root:floppy 660

	# net devices
	SUBSYSTEM=net;.* root:root 600 @nameif
	tun[0-9]* root:root 600 =net/
	tap[0-9]* root:root 600 =net/

	# alsa sound devices and audio stuff
	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/
	# for kernels/mdevs which expose full path of alsa devices:
	snd/pcm.* root:audio 660
	snd/control.* root:audio 660
	snd/midi.* root:audio 660
	snd/seq root:audio 660
	snd/timer root:audio 660

	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/

	# Less typical devices

	# raid controllers
	cciss!(.*) root:disk 660 =cciss/%1
	ida!(.*) root:disk 660 =ida/%1
	rd!(.*) root:disk 660 =rd/%1

	ttyLTM[0-9] root:dialout 660 @ln -sf $MDEV modem
	ttySHSF[0-9] root:dialout 660 @ln -sf $MDEV modem
	slamr root:dialout 660 @ln -sf $MDEV slamr0
	slusb root:dialout 660 @ln -sf $MDEV slusb0

	fuse root:root 666

	# dri device
	card[0-9] root:video 660 =dri/

	# misc stuff
	agpgart root:root 660 >misc/
	psaux root:root 660 >misc/
	rtc root:root 664 >misc/

	# 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/

	# v4l stuff
	vbi[0-9] root:video 660 >v4l/
	video[0-9] root:video 660 >v4l/

	# dvb stuff
	dvb.* root:video 660 */lib/mdev/dvbdev

	# load drivers for usb devices
	usbdev[0-9].[0-9] root:root 660 */lib/mdev/usbdev
	usbdev[0-9].[0-9]_.* root:root 660

	# zaptel devices
	zap(.*) root:dialout 660 =zap/%1
	dahdi!(.*) root:dialout 660 =dahdi/%1

	# HTC Android
	# Attaching it via USB cable causes a flurry of activity:
	#
	# mdev[1271]: 48.639459 ACTION:add SUBSYSTEM:usb DEVNAME:bus/usb/001/009 DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5
	# mdev[1271]: mknod bus/usb/001/009 (189,8) 20660 0:0
	# mdev[1272]: 48.642354 ACTION:add SUBSYSTEM:usb DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0
	# mdev[1272]: running: modprobe "$MODALIAS"
	# mdev[1273]: 48.650078 ACTION:add SUBSYSTEM:scsi DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11
	# mdev[1274]: 48.651297 ACTION:add SUBSYSTEM:scsi_host DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11/scsi_host/host11
	# mdev[1275]: 49.649422 ACTION:add SUBSYSTEM:scsi DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11/target11:0:0
	# mdev[1276]: 49.650703 ACTION:add SUBSYSTEM:scsi DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11/target11:0:0/11:0:0:0
	# mdev[1276]: running: modprobe "$MODALIAS"
	# modprobe: module scsi:t-0x00 not found in modules.dep
	# mdev[1277]: 49.658002 ACTION:add SUBSYSTEM:scsi_disk DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11/target11:0:0/11:0:0:0/scsi_disk/11:0:0:0
	# mdev[1278]: 49.659244 ACTION:add SUBSYSTEM:scsi_device DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11/target11:0:0/11:0:0:0/scsi_device/11:0:0:
	# mdev[1279]: 49.660535 ACTION:add SUBSYSTEM:bsg DEVNAME:bsg/11:0:0:0 DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0/host11/target11:0:0/11:0:0:0/bsg/11:0:0:0
	# mdev[1279]: mknod bsg/11:0:0:0 (253,1) 20660 0:0
	# mdev[1280]: 49.663516 ACTION:add SUBSYSTEM:bdi DEVNAME:(null) DEVPATH:/devices/virtual/bdi/8:16
	# mdev[1281]: 49.664748 ACTION:add SUBSYSTEM:block DEVNAME:sdb DEVPATH:/block/sdb
	# mdev[1281]: mknod sdb (8,16) 60660 0:0
	# mdev[1282]: 49.677597 ACTION:change SUBSYSTEM:block DEVNAME:sdb DEVPATH:/block/sdb
	# mdev[1283]: 50.692936 ACTION:change SUBSYSTEM:block DEVNAME:sdb DEVPATH:/block/sdb
	#
	# We are hooking to the last events. To avoid having two scripts running,
	# we check for DISK_MEDIA_CHANGE=1 (prev to last event has it,
	# and it's the _only_ difference in env for these two events as of kernel 3.7.7)
	# Unfortunately, there is no event for "user pressed [Turn USB storage on] btn"!
	# Script merely backgrounds and tries to rescan partition table for 1 minute:
	ACTION=change;SUBSYSTEM=block;DISK_MEDIA_CHANGE=1;.* 0:0 660 */etc/mdev.conf.change_blockdev.sh