The kernel's device manager, responsible for the contents of /dev.

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bash script to cd into an USB device

i am creating a simple updater for a program which will be ran on an Odroid C1 with Ubuntu 14.04 Server.. Preamble 1) i want the updater.run downloaded from my server and placed into an USB; then ...
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2answers
60 views

How can I force USB devices to keep the same device file even after they crash and are reset?

I have 3 USB webcams and 3 Arduino's plugged into the same computer. On startup, they are labeled /dev/videoN (N goes from 0 to 2) and /dev/ttyACMN (N goes from 0 to 2). So far, so good. The problem ...
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1answer
318 views

Ubuntu 14.04 Sound on HDMI output

I have Ubuntu 14.04 LTS. I have an issue with switching audio output to HDMI when an external monitor (TV) is connected. Here is my setup: I created "udev rule" 10-hdmi_sound.rules in ...
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1answer
319 views

ARGH udev won't stop renaming my interfaces!

I have the following in /etc/udev/rules.d/70-persistent-net.rules SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="d0:50:99:50:43:17", KERNEL=="eth*", NAME="eth0" SUBSYSTEM=="net", ...
2
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0answers
96 views

Cannot start Wireless HotSpot on USB adapter plug in (with udev rule)

I really need help on this matter. I have a PC with Lubuntu 14.10 and a Wireless USB stick TP-Link TL-WN722N and I want to create a wireless hotspot that automatically gets started upon wireless USB ...
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1answer
68 views

How do I use two USB printers?

I have two USB printers, both of which have different device and product ID's: Bus 001 Device 005: ID 222a:0037 Bus 002 Device 003: ID 0493:8760 MAG Technology Co., Ltd When I try map them in the ...
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1answer
120 views

iPhone does not unmount properly when unplugged

I'm running Ubuntu 14.10 on my netbook, and connect my iPhone via USB cable so that it tethers and I can access the internet. This all works as expected. The issue is that when the iPhone is ...
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54 views

Mounting media player for sync with gPodder

I have a Creative Zen media player which "mounts" with MTP over libmtp. In 12.04 I used gPodder to sync over this MTP connection but since upgrading to 14.04, gPodder seems to no longer works over ...
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0answers
538 views

udev and eMMC rpbm partitions

I'm running into this bug: Fix udev rules to consider mmc rpmb partitions and trying to solve it using a udev rule. I haven't needed to learn anything about udev in the past, so have been reading up ...
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195 views

USB drives `/dev/disk/by-id` changed after upgrade from 12.04 to 14.04

I have two Western Digital Red external drives attached over USB. These disks previously (under Ubuntu 12.04 LTS) showed up in /dev/disk/by-id as: ...
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1answer
281 views

Ubuntu 14.10 - udev refuses to update

On Ubuntu 14.10 Udev refuses to update. I executed this code: sudo apt-get upgrade Which gave this output: Reading package lists... Done Building dependency tree Reading state ...
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1answer
122 views

Wrote udev rule to run script, but nothing happens

Here is my 81-arduino.rules file: KERNEL=="ttyACM*", ATTRS{idVendor}=="2341", ATTRS{idProduct}=="0043", ATTRS{serial}=="754393133373519132C0", RUN+="/home/z37/screenrun.sh" So when I plug-in ...
0
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1answer
49 views

How to assign a fixed device number to a camera?

I need my usb video camera (A4Tech) to take /dev/video0 and the capture card (analog converter) to take /dev/video1 regardless of the order I connect them to PC.
2
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0answers
81 views

Device not identified as removable

I have an ebook reader (Kobo Aura) that used to appear as a removable device when connected (in KDE's device notifier). Some time in the last month or so (I haven't upgraded the device), it has ...
1
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1answer
68 views

How to identify my device by their physical path?

I'm creating a computer which manipulate harddrives. I would like to identify the harddrive not by the order in which I plug them into my computer but by the slot I put them into. I know Ubuntu ...
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1answer
39 views

Write udev rules for serial device

I have one concern regarding device name assign by kernel like /dev/sda* , /dev/sdb* ... etc but i would like to write rules for assign name to new pattern like "/dev/sc**"(starting with modified ...
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0answers
72 views

Where can I find the static udev libraries for Ubuntu 14.04?

I am trying to build an executable using the USB static library which in turn needs the UDEV static library. I have the libusb-1.0.a file but cannot locate the libudev.a file for linking. I have ...
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0answers
42 views

Error to install svn on ubuntu 14.04

$ sudo apt-get install subversion apache2 libapache2-svn apache2-utils * udev requires hotplug support, not started ... fail! E: Sub-process /usr/bin/dpkg returned an error code (1) How to solve ...
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1answer
317 views

Executing a script when inserting a flash drive

How can I write a script that fires on an event? When I insert an USB flash drive, Ubuntu mounts it and automatically opens Nautilus. When this happens with a specific flash drive, I'd like to open a ...
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0answers
242 views

error in setting up android usb debugging in Ubuntu 14.10

I have a android phone from LG, and I want to use it for USB debugging. I followed the following steps: Enabled usb debugging in developers option on phone. After connecting to PC, phone shows as ...
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33 views

Mount USB device to portname instead of devicename

I am using an USB Device as a replacement for a floppy disk. I need to set up a fixed path to my USB device in order for it to work. So one option could be to always use the same USB device, I'll find ...
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0answers
11 views

mouse function is disabled

I have been aded this rule on /etc/udev/rules.d/70-plantronics.rules ACTION!="add|change", GOTO="xorg_plantronics_end" KERNEL!="event*", GOTO="xorg_plantronics_end" ENV{ID_VENDOR_ID}=="047f", ...
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1answer
90 views

Mounting USB Device in same location

I am using an USB Device as a replacement for a floppy disk. I am only using one USB device at a time. How can I make Ubuntu to mount ANY USB device into a fixed folder, eg. /media/USERNAME/USB? ...
3
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1answer
334 views

Udev not running scripts

I'm trying to make udev disable/enable my touchpad when I connect/disconnect my external mouse. I don't know what is wrong. When I call udevadm --test it seems to be calling my script, but when I ...
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0answers
129 views

Why has 14.04 LTS no static libraries in some packages?

These are the udev development packages for the last three Ubuntu LTS releases. File list of package libudev-dev in lucid File list of package libudev-dev in precise File list of package libudev-dev ...
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1answer
392 views

Why can't my udev rules rename kernel device nodes after upgrading from 12.04 to 14.04

In Ubuntu 12.04 I wrote the following udev rules to fix the /dev name of a USB RF remote control. These were: KERNEL=="event[0-9]*", ATTRS{name}=="BTC USB Multimedia Cordless Keyboard", ...
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83 views

Circumventing MacBook Pro's motion sensor using /dev/input/js0 as a joystick

I'm on a MacBook Pro 8,1 running 14.04 and I've never plugged in any device with a joystick to my laptop. When I was trying to fix an input problem I was having, I checked /dev/input/js0 thinking that ...
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1answer
176 views

Commands not executing in shell script run by udev

I'm having trouble using udev to run a shell script that backs up my hard drives to an external drive whenever the external drive is connected via USB. Everything works except the actual call to ...
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2answers
143 views

udev script does not start when event happen

I was annoyed that every time I connect my hdmi cable I need to manually change the sound setting. I started looking into udev rules, what I came out with are these two files: ...
14
votes
1answer
637 views

Only use Mass Storage devices on a selected USB port - how?

On a given USB port, I only want to accept USB Mass Storage capabilities, and nothing else. No HID devices, no Bluetooth adapters, no RS232 converters, nothing. Is there a way to do this e.g. using ...
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224 views

kernel make zImage error - No rule to make target vmlinux

I've been searching for a couple of days and I can't find anything on google about an interesting error I get when compiling a linux kernel. I initially thought this problem had something to do with ...
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1answer
59 views

How to know where in /dev/ is a USB keyboard loaded?

To be precise, when you plug in a USB storage device, it is loaded in sd something, but where is a usb keyboard loaded in /dev/?
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1answer
559 views

libusb couldn't open USB device /dev/bus/usb/002/006: Permission denied. libusb requires write access to USB device nodes

I am connecting my FTDI Device with Laptop USB. I was following all the steps given in the link How to build libftdi git under Linux But after installing.. When I was running ./eeprom it is throwing: ...
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221 views

Ubuntu 14.04 HDMI UDev Rule

I have tried multiple variations to this script but I cannot get it to work. The UDEV Rule fires the script and the script exectutes but simply does not change the audio profile. If I run the script ...
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1answer
86 views

Swapping Caps Lock and Ctrl via udev

I want to swap Caps Lock and Ctrl. My solution so far is to edit /etc/default/keyboard and setting XKBOPTIONS="ctrl:nocaps" There are problems with this solution. First it doesn't work with virtual ...
2
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1answer
2k views

mounting galaxy s4 ubuntu 14.04

The problem is as simple as the title, I can't mount my rooted galaxy s4 phone(newest update 4.4.2) on my laptop(running Ubuntu 14.04 LTS). The error message is a consistent: Unable to open MTP ...
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0answers
44 views

Unknown Floppy Drive detected

After a reboot, Ubuntu (and Windows) detect an external floppy drive that isn't even there!It's not a big problem to find a new floppy drive that I can't access, but it really looks strange in the ...
12
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1answer
674 views

USB sticks not accessible & system hangs at shut-down: related to older hardware?

Please notice the three updates at the end of the post. Original problem I installed Lubuntu 14.04.1 on an older Acer Travelmate 4500 using the forcepae option and adjusting upowerd.py according to ...
2
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1answer
2k views

chroot: Ubuntu 14.04 - udev upgrade Problems!

im running Ubuntu 14.04 (x86) on a OpenELEC (x64) host system. Everything worked great until a few days ago when it tried to upgrade the "udev" package after running apt-get upgrade. apt-get upgrade ...
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1answer
224 views

How to detect touchscreen devices from a script?

I'm looking for a reliable way to detect if a laptop has a touchscreen device from a script. I know I can parse the output of: $ xinput --list ⎡ Virtual core pointer id=2 ...
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0answers
38 views

After upgrading to Trusty my keymap file isn't working for my tivo_slide remote

I tried creating this file: ‍/etc/udev/hwdb.d/61-keyboard-local.hwdb It looks like this: lee@tv:/etc/udev/hwdb.d$ cat /etc/udev/hwdb.d/61-keyboard-local.hwdb keyboard:usb:v150ap1201* ...
2
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1answer
240 views

Cant change name of internal webcam via udev rules Ubuntu 14.04

I need to change device name of internal camera Rule: ACTION=="add", SUBSYSTEM=="video4linux", ATTR{name}=="UVC Camera (046d:0825)", NAME="video2", SYMLINK="usb/video", RUN+="/usr/bin/forudev" I ...
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1answer
296 views

How do disable the CD-ROM for all users?

I want to disable CDROM/CDRW/DVDROM/DVDRW for everyone in Ubuntu 14.04.1 desktop 64-bit edition. I have tried following but not worked: Removed user from /etc/group, as following: cdrom:x:24: as ...
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336 views

How can I remap the keys/keycodes of a usb foot switch on SystemD?

I was using the old udev rules to remap my usb foot switch key(the default is the keycode 36 -b :S) to Alt_L. Previosly I created a udev rule and a xmodmap file. But i'm trying the systemd now, and ...
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1answer
2k views

How to make my udev rule work

My USB device keeps changing its number in its name /dev/ttyUSB?. I have seen this and this, and tried to do the same with no luck. gauthier@sobel:/etc/udev/rules.d $ udevadm info -a -p $(udevadm ...
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1answer
973 views

How can I run code whenever a USB device is (un)plugged, without requiring root permissions?

I have a script that I wish to run whenever I plug/unplug a mouse or keyboard to my USB port. There is already plenty of documentation on how to configure udev rules to run arbitrary scripts when a ...
2
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1answer
2k views

Udev error while upgrading

I update and upgrade my ubuntu 14.04 server. Update is successfull but i get this error while upgrading : apt-get upgrade Reading package lists... Done Building dependency tree Reading state ...
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2answers
2k views

Explanation of 70-persistent-net.rules script

I am a newbie in scripting language.I will like to understand a script that was written by someone else.Kindly explain to me what this line of script does: IF=`cat ...
2
votes
1answer
64 views

Linux - keyboard with phone-like typing

I have a USB keyboard extension with just number-keys: I need to write chars (A to Z) on this keyboard. My idea is write the way you can on some phone keypads, where each number is mapped to ...
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212 views

What is the Purpose of /etc/init/udev-fallback-graphics.conf in Ubuntu 14.04?

What is the purpose of the upstart configuration /etc/init/udev-fallback-graphics.conf (shown below) in Ubuntu 14.04 LTS? # fallback-graphics - take actions to initiate fallback graphics # # if we ...