Udev is a Linux process that manages device file entries under /dev

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408 views

Can I masquerade a kernel uevent?

What I think happens From my understanding this is what happens when I connect a USB device to my computer: Kernel recognizes that I plugged in a USB device Kernel setups the very low-level things ...
4
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730 views

udev .rules not running script

I'd like my computer to run certain scripts when a specific keyboard is (1) plugged in, (2) plugged out, (3) detected at startup. Here's the device: [rob@X200 vim]$ lsusb | grep keyb Bus 005 Device ...
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219 views

How to rename devices for graphical output such as VGA0

On my Laptop the names of my graphical outputs change depending on what chip is activated in the BIOS. This leads to problems in some scripts where outputs such as VGA-0 or LVDS-0 are specified. So I ...
3
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197 views

Help with udev rules my Keyboard thinks it's a Joystick

I'm running Archlinux and I have a weird problem my "Microsoft Wired Keyboard 600" gets picked up as a Joystick and a Keyboard for some reason. Note: Output trimmed ─$ xinput list Virtual core ...
3
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206 views

What can cause a usb port speed change?

I have an instrument connected via usb to a OpenSuse (11.1 32) computer. Following the vendor instructions, I've added one rule to udev: ATTR{idVendor}=="0e0d", ATTR{idProduct}=="0003", MODE="0666" ...
3
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91 views

Trouble getting USB printer to 'stick' using udevadm

What I’ve got so far $ udevadm info -a -p$(udevadm info --q path -n /dev/usb/lp1) | grep serial ATTRS{serial}=="544336460792090000" /etc/udev/rules.d/50-udev.rules: SUBSYSTEM=="usb", ...
3
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73 views

Trigger a login by plugging in a USB drive

OS: Linux, Mint. I want to have a system where I can insert a flashdrive into a computer, and using UDEV rules, have the system login a user account. I can do the UDEV part, but what command should I ...
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123 views

Keep keyboard layout upon inserting external keyboard

I have a custom keyboard layout, that I enable using this commands: setxkbmap -verbose us -variant altgr-intl xmodmap -verbose /home/coub/.myxmodmap This works just fine, the thing is, that when I ...
3
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693 views

linux udev rule to load gadget module for client driver

I'm having a hard time automating loading a gadget module and bringing up the usb0 device as a eth interface. The interface in question is g_ether for a embedded Linux device and connecting to a PC. ...
3
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742 views

Access a variable by name in udev?

I'm trying to get access to the partition type (the one-byte field in the master boot record) in udev, so that I can set ownership and permissions based on partition type. The challenge is of course ...
2
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21 views

how do I add a udev property for my android phone?

I'm trying to get my android phone recognised by rhythmbox. Talking to upstream, rhythmbox gets the value of "id_model" for the udev device - if it is "Android" then it should work. How do I use a ...
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66 views

How can I make udev accept mass storage and reject everything else?

I'm trying to write a udev rule to allow USB mass storage devices but reject anything else (keyboard, mouse, etc). I found this online: ACTION!="add", GOTO="deauthorize_end" SUBSYSTEM!="usb", ...
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39 views

Attributes not available in udev

I'm attempting to write a udev rule for a USB device, however I'm having trouble matching the ATTRS{*} attributes in my rules. After a little debugging using udevadm info, I've found that none of my ...
2
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196 views

Why does my USB modem produce multiple /dev/ttyUSB* files?

I have a single Sierra Wireless USB 308 modem we are using for sending SMS message to, and receiving SMS messages from, customers. When this single device is plugged in, the system creates multiple ...
2
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378 views

UDEV-Rule to mount USB-Stick / execute script

I have a problem with an udev-rule. i simply want to mount a usb stick when it is plugged in. the rule correctly executes a script which mkdir the mount point and then calls mount. everything seems to ...
2
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103 views

How to add scripts for udev to run

I have several scripts i would like udev to run when a monitor is plugged/unplugged. I have added the extra udev rules, but i don't know how to add the scripts that i want udev to run. I have tried ...
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155 views

debian wheezy extreme boot delay

I migrated from Arch to Debian(wheezy) recently. Since Debian was still using sysVinit, I migrated to systemd, but following this. The system booted after a long init, using fallback LSB scripts for ...
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164 views

What is the difference between HAL and udev?

As far as I understand, if I have 3 different network cards, then HAL will cal each of them eth0, eth1 and eth irrespective of their brands, manufacturerers etc. But it seems to me that udev precisely ...
2
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656 views

How do I get ata-style IDs in /dev/disk/by-id to work for USB disks?

I have USB drive dock that I'm plugging SATA drives into. The way they show up in /dev/disk/by-id seems to be dependent on whether the drive has a partition table (usb if not, ata if yes). This makes ...
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300 views

UDEV rule to run partprobe on loop device

I use udisks2 to mount raw image over a loop device: udisksctl -f image.img --no-user-interaction Policykit is configured, so no errors here. For some reason kernel does not want to re-read ...
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327 views

Udev running hibernation script

I have this udev rule that launches a script when the battery level is 5% or below: $ cat /etc/udev/rules.d/90-lowbat.rules: SUBSYSTEM=="power_supply", ATTR{status}=="Discharging", ...
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1k views

Udev rule not working on Debian

I can detect and mount my USB drive on my Debian VM machine. And the first post here - explained below - works on my Ubuntu machine. Should not it work on Debian too? It doesn't of course. Why is ...
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504 views

persistent network interface naming and kvm

I wonder why my network interface is still named eth0 in my kvm guests. udevadm just outputs # udevadm test-builtin net_id /sys/class/net/eth0 2> /dev/null ID_NET_NAME_MAC=enxc2184ae7ab3f I ...
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429 views

Modifier keys cannot be mapped to regular keys on USB keyboard with udev

Using an hwdb file, /etc/udev/hwdb.d/99-keyboard.hwdb, I can remap the left Alt key on my USB keyboard as the Ctrl key: keyboard:usb:v*p* KEYBOARD_KEY_700e2=leftctrl This also works when I try to ...
2
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3k views

Add udev rule alias for input device

I am trying to add a udev alias rule for my xboxdrv (x-box controller) and I can't seem to figure it out. dmesg | grep "input" I see: [ 6.239955] input: Microsoft X-Box 360 pad as ...
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683 views

How can I set repeat rate of USB keyboard with udev?

How can I get my keyboard repeat rate to apply to a hotplugged USB keyboard? I made a udev rule to set the keyboard repeat delay and rate, /etc/udev/rules.d/99-usb-keyboard.rules with the following ...
2
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104 views

How to know when a device is ready

I have firewire mixing console and I wrote an udev rule which calls a script to set up the whole audio chain (alsa -> pulseaudio -> jackd -> firewire) as soon an the console is switched on. Now I ...
2
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475 views

Failed to execute shell script from “network” udev rule to change the MAC-address

I am trying to execute a shell script from udev rule, when a network interface is added, as follows: SUBSYSTEM=="net", ACTION=="add", KERNEL=="eth*", PROGRAM="/usr/local/bin/changemac.sh", ...
2
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232 views

Can a FAT32 and NTFS file system exist without UUID?

I have an USB disk drive partioned with 2 FAT32 partitions, which is not getting detected in the embedded device, but gets detected in a Fedora system. Basically in the udev rules, I am not able to ...
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579 views

Automatically update MPD database upon external storage insertion

I have an Alix board in my living room running Voyage MPD edition and acting as jukebox. In order to play "guest" music, I would like that MPD automatically updates its database with the content of ...
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18 views

Why is my udev mounted device not staying put?

I have a computer running CentOS 7. I'm trying to set up a udev rule to automatically mount a USB drive (named 'sdb1') to /mnt/flash whenever it is connected. The udev script was not working (see ...
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35 views

Kernel driver for trackpoint on Lenovo Thinkpad 13

On other ThinkPads I've succesfully configured the trackpoint with udev using this method but on my new Lenovo Thinkpad 13 this isn't possible: This command: find /sys/devices/platform/i8042 -name ...
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19 views

Can I change device node with udev rules?

In the recent udev(7) manpage (Fedora 22, systemd version 219), it seems that renaming a device node by udev using NAME key has been prohibited: NAME The name to use for a network interface. See ...
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16 views

What is the difference in using xinput and synclient for deactivating a touchpad in X

I have troubles using xinput --disable or --set-prop "Device Enabled" or set-prop "Synaptics Off". It seems that --disable / --enable and "Device Enabled" are meant to deactivate the whole device, ...
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27 views

udev working with SYMLINK but not with NAME

Problem: I'm writing persistent naming rules for a USB dongle following the tutorial here. The rule works as expected for : SUBSYSTEM=="tty", ATTRS{idVendor}=="0658", ATTRS{idProduct}=="0200", ...
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20 views

Udev: cmd executed when attaching device, but does nothing

I created rules which should run a command when i attach my USB mouse to disable the touchpad and the point stick: machine ~ # cat /etc/udev/rules.d/61-touchpad.rules # 61-touchpad.rules # disable ...
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29 views

How to wait for detected LVM volumes?

I have the following problem: I have a machine running arch and which contains a encrypted LV in a LVM. Inside the (encrypted) LV is another PV located. So I have in fact two VGs: One which contains ...
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36 views

udev: Wrong symlink is made at boot time

I am trying to create a udev rule to give a static name to a ttyUSB (a FTDI USB serial cable). My rule is quite simple (the file is named 99-usb-serial.rules): KERNEL=="ttyUSB?", ...
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106 views

when running `udevadm test`: `no db file to read /run/udev/data/+gpio_sw:PA7: No such file or directory`

I am trying to write an udev rule that matches a GPIO Pin of my Orange Pi (the GPIOs use the gpio-sunxi kernel module). My ultimate goal is to let users who are member of a particular group access ...
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36 views

Kernel module inconsistency

everyone. I have special USB device (chinese touchscreen), what I need to connect to my computer with Linux. By default, Linux assign connected device to usbhid (I found this info by execute ...
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32 views

How to automatically load a new VID&PID to module usb_serial

I have a 4G module that requires me to run echo '03f0 581d' > /sys/bus/usb-serial/drivers/generic/new_id after every startup/resume to make the modem visible. How should I make this automatic? ...
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25 views

udev rules official docs

I am looking official UDEV rules, documents, I have noticed there are changes in udev rules in RHEL 7. But could not find any documents some thing like 'request for changes'. Please help Thanks,
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111 views

Redhat 7.1 Udev Rules changes SYMLINK+ And Name

I am tying to install Oracle ASM on RHEL 7.1, for that trying to configure Udev rules. I have noticed there are is new attribute in udev rules SYMLINK+ which seems to be replacement of NAME ...
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35 views

udev rules not working

I am trying to change the name of my network device wlan0 to eth1 in order to get Matlab to active, I have added the file: 70-use-eth1-for-matlab-licensing.rules with the following contents: ...
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251 views

CentOS 7 - Forcing a disk to be /dev/sda

I've been wrestling with this problem for awhile now, and I've hit a wall and need help. In my system, I have 1 drive connected to a SATA port, an SSD. CentOS 7 is installed to this disk. Also in ...
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135 views

udev: Passing parameters via $attr{key} does not work. How to solve it?

I want to enumerate my USB-UART bridges with my own script. The script shall be called with some attributes and return a new devfs node name. I tested the script on console: ./rc3e.py -d ...
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73 views

My udev Rule do not trigger when USB driver is connected

I trying to run a script each time a USB drive is connected to the Raspberry PI by using udev rules, but cannot get it to work. I have created a file in: /etc/udev/rules.d/85-usbthumb.rules ...
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53 views

UDEV-rule:Open new gnome-terminal window on usb-plugin AND activate it for stdin/stdout/stderr?

My attempt is this: If a certain USB-device is plugged in, I want to open a gnome-terminal window in my desktop-environment. This newly opened window must be able to be interactive, this means, the ...
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30 views

External monitor script has become unreliable

I have been using the following udev rule and bash script to automatically configure my external monitor for some time now, however recently the script has become unreliable, usually doing the ...
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30 views

Using USB intermet through android phone rename dev name

I had a issue every time I connect my phone and enable Internet USB, the assosiated interfaces name changes like enx$(random mac). There's a way to set the name like ppp0 vía udev? I tried vía vendor ...