2 # This is a sample mdev.conf
5 # Provide user, group, and mode information for devices. If a regex matches
6 # the device name provided by sysfs, use the appropriate user:group and mode
7 # instead of the default 0:0 660.
10 # [-][ENVVAR=regex;]...devicename_regex user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]
11 # [-][ENVVAR=regex;]...@maj,min[-min2] user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]
12 # [-]$ENVVAR=regex user:group mode [=path]|[>path]|[!] [@|$|*cmd args...]
14 # [-]: do not stop on this match, continue reading mdev.conf
15 # =: move, >: move and create a symlink
16 # !: do not create device node
17 # @|$|*: run cmd if $ACTION=remove, @cmd if $ACTION=add, *cmd in all cases
19 # support module loading on hotplug
20 $MODALIAS=.* root:root 660 @modprobe "$MODALIAS"
22 # null may already exist; therefore ownership has to be changed with command
23 null root:root 666 @chmod 666 $MDEV
28 hwrandom root:root 444
34 # console may already exist; therefore ownership has to be changed with command
35 console root:tty 600 @chmod 600 $MDEV
42 tty[0-9]* root:tty 660
43 vcsa*[0-9]* root:tty 660
44 ttyS[0-9]* root:uucp 660
47 ram([0-9]*) root:disk 660 >rd/%1
48 loop([0-9]+) root:disk 660 >loop/%1
49 sd[a-z].* root:disk 660 */lib/mdev/usbdisk_link
50 hd[a-z][0-9]* root:disk 660 */lib/mdev/ide_links
51 md[0-9]* root:disk 660
52 sr[0-9]* root:cdrom 660 @ln -sf $MDEV cdrom
53 fd[0-9]* root:floppy 660
56 SUBSYSTEM=net;.* root:root 600 @nameif
57 tun[0-9]* root:root 600 =net/
58 tap[0-9]* root:root 600 =net/
60 # alsa sound devices and audio stuff
61 pcm.* root:audio 660 =snd/
62 control.* root:audio 660 =snd/
63 midi.* root:audio 660 =snd/
64 seq root:audio 660 =snd/
65 timer root:audio 660 =snd/
67 adsp root:audio 660 >sound/
68 audio root:audio 660 >sound/
69 dsp root:audio 660 >sound/
70 mixer root:audio 660 >sound/
71 sequencer.* root:audio 660 >sound/
73 # Less typical devices
76 cciss!(.*) root:disk 660 =cciss/%1
77 ida!(.*) root:disk 660 =ida/%1
78 rd!(.*) root:disk 660 =rd/%1
80 ttyLTM[0-9] root:dialout 660 @ln -sf $MDEV modem
81 ttySHSF[0-9] root:dialout 660 @ln -sf $MDEV modem
82 slamr root:dialout 660 @ln -sf $MDEV slamr0
83 slusb root:dialout 660 @ln -sf $MDEV slusb0
88 card[0-9] root:video 660 =dri/
91 agpgart root:root 660 >misc/
92 psaux root:root 660 >misc/
93 rtc root:root 664 >misc/
96 event[0-9]+ root:root 640 =input/
97 mice root:root 640 =input/
98 mouse[0-9] root:root 640 =input/
99 ts[0-9] root:root 600 =input/
102 vbi[0-9] root:video 660 >v4l/
103 video[0-9] root:video 660 >v4l/
106 dvb.* root:video 660 */lib/mdev/dvbdev
108 # load drivers for usb devices
109 usbdev[0-9].[0-9] root:root 660 */lib/mdev/usbdev
110 usbdev[0-9].[0-9]_.* root:root 660
113 zap(.*) root:dialout 660 =zap/%1
114 dahdi!(.*) root:dialout 660 =dahdi/%1
117 # Attaching it via USB cable causes a flurry of activity:
119 # mdev[1271]: 48.639459 ACTION:add SUBSYSTEM:usb DEVNAME:bus/usb/001/009 DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5
120 # mdev[1271]: mknod bus/usb/001/009 (189,8) 20660 0:0
121 # mdev[1272]: 48.642354 ACTION:add SUBSYSTEM:usb DEVNAME:(null) DEVPATH:/devices/pci0000:00/0000:00:02.1/usb1/1-5/1-5:1.0
122 # mdev[1272]: running: modprobe "$MODALIAS"
123 # 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
124 # 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
125 # 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
126 # 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
127 # mdev[1276]: running: modprobe "$MODALIAS"
128 # modprobe: module scsi:t-0x00 not found in modules.dep
129 # 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
130 # 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:
131 # 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
132 # mdev[1279]: mknod bsg/11:0:0:0 (253,1) 20660 0:0
133 # mdev[1280]: 49.663516 ACTION:add SUBSYSTEM:bdi DEVNAME:(null) DEVPATH:/devices/virtual/bdi/8:16
134 # mdev[1281]: 49.664748 ACTION:add SUBSYSTEM:block DEVNAME:sdb DEVPATH:/block/sdb
135 # mdev[1281]: mknod sdb (8,16) 60660 0:0
136 # mdev[1282]: 49.677597 ACTION:change SUBSYSTEM:block DEVNAME:sdb DEVPATH:/block/sdb
137 # mdev[1283]: 50.692936 ACTION:change SUBSYSTEM:block DEVNAME:sdb DEVPATH:/block/sdb
139 # We are hooking to the last events. To avoid having two scripts running,
140 # we check for DISK_MEDIA_CHANGE=1 (prev to last event has it,
141 # and it's the _only_ difference in env for these two events as of kernel 3.7.7)
142 # Unfortunately, there is no event for "user pressed [Turn USB storage] btn"!
143 # Script merely backgrounds and tries to rescan partition table for 1 minute:
144 ACTION=change;SUBSYSTEM=block;DISK_MEDIA_CHANGE=1;.* 0:0 660 */etc/mdev.conf.change_blockdev.sh