Tagged Questions

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

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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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0answers
15 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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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
38 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? ...
2
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1answer
71 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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29 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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43 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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12 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
56 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
56 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: ...
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1answer
223 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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94 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
17 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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0answers
207 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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0answers
138 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
27 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 ...
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335 views

mounting galaxy s4 ubuntu 14.04

I know this has topic has been touched on a lot, and I have tried just about anything I have read and still have no solution. Be aware, still relatively a noob with linux. The problem is as simple as ...
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0answers
21 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 ...
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202 views

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

Please notice the two 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 ...
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1answer
560 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
76 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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22 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* ...
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62 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
99 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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0answers
108 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
169 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
137 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 ...
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1answer
820 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
444 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
38 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 ...
1
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0answers
116 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 ...
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0answers
56 views

Error reported @ startup on 14.04

I keep getting this error message at start up: system.udevd: 'failed to execute' '/dev/udev.mode-modeswitch/' '/dev/udev.mode-modeswitch/' vendor 0x12d1 --product 0x1446 --type option-zerocd':no such ...
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0answers
53 views

How to block a virtual part of a USB device with udev?

I've got Microsoft Sculpt Ergonomic Desktop (keyboard+mouse). It's a nice set but it creates problems for me as one of its parts in the system is a virtual joystick js0. I've got an advice to use ...
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0answers
24 views

udevadm doesn't print in terminal

So I'm using Ubuntu 14.04 and I'm trying to create some udev rules as I have 8 identical USB RFID readers Firstly I wanted to check what logical ttyUSBx devices existed (where x is 0, 1, 2...) with ...
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0answers
93 views

How to distinguish between identical USB's

I have this system where I have 8 USB RFID readers which I would like to distinguish from one another. Here's a snippet from lsusb Bus 002 Device 011: ID 05fe:1010 Chic Technology Corp. Optical ...
3
votes
1answer
629 views

My custom udev hwdb rule doesn't work

I'm using ubuntu 14.04 installed in EFI Mode, I tried to write simple udev rule which for all external USB keyboards will map capslock for escape. I use a lot of vim and plug and unplug keyboards ...
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0answers
47 views

Usb3.0 udev events lag in 14.04

I have an application running on ubuntu 14.04(on an intel nuc) which responds to udev events. I have found using udeavadm monitor that there are lengthy lags in the events being sent. For instance if ...
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votes
2answers
110 views

How to disable automount of an harddrive?

I am working on a project, and for this I need to disable the aumounting of hard-drives in Ubuntu both at startup and when I plug an hard-drive. I tried one solution with "edit-conf" disabling ...
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0answers
113 views

How to mount USB drive as user writable

I want to mount my USB hard drive as myself, or in my group, whatever it takes to be able to move stuff onto the disk without sudo. I have tried setting up a rule in ...
0
votes
1answer
125 views

missing sbin/hotplug in Ubuntu

Im using Ubuntu and I cannot find /sbin/hotplug. Did anything replace it? How does it handle hotplugging? I read that kernel calls it for notifying user space when an hotplug event happens. I also ...
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2answers
68 views

Execute script on insertion of sdcard

Since I want some union mounts to be created, once a sd card is found in my system, I wrote the following udev my.rules: ACTION=="add", KERNEL=="mmcblk0", SUBSYSTEM=="block", \ RUN+="touch ...
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votes
1answer
352 views

How create symbolik link /dev/usb/lp* and permission change to raw print? Xubuntu 14.04

i want use a symbolic link from usb printers but i can't write to this device: $ ls -l /dev/usb/lp* crw-rw---- 1 root lp 180, 0 jun 25 14:17 /dev/usb/lp0 crw-rw---- 1 root lp 180, 1 jun 25 14:17 ...
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vote
1answer
245 views

Disable all USB Storage devices and enable some devices based on Vendorid

I tried by adding below udev rule ACTION=="add", SUBSYSTEMS=="usb", RUN+="/bin/sh -c 'for host in /sys/bus/usb/devices/usb*; do echo 0 > $host/authorized_default; done'" ACTION=="add", ...
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0answers
122 views

Interface not starting on boot

I have Ubuntu server 10.0.4 and ASUS-N53 wireless USB adapter I needed to compile source files to get the driver to work and the logical name I got for that interface was ra0 The ...
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0answers
109 views

Get keyboard scancodes in Ubuntu 13.10

I'm trying to find out the scancodes for a set of foot pedals so that I can rebind them to more useful keys. In older versions of Ubuntu I was able to do this using /lib/udev/keymap as discussed here, ...
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0answers
275 views

Preventing pop-up dialogs when connecting an MTP device

I'm using Lubuntu 14.04 with a Samsung Galaxy S3 running Android 4.3. Each time I connect my phone via USB, I get the following dialog: Unable to open MTP device '[usb:002,023]' A few moments later, ...
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1answer
284 views

Gamepad detected by lsusb but not by PCSX or jstest-gtk in Ubuntu 14.04

I had been using a PS3 gamepad on PCSX for a while on Ubuntu 14.04, but realized it stopped working today. The controller is detected by lsusb on Terminal, but it does not appear in PCSX or ...
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0answers
52 views

udev .rules file run as local per user?

I have my code that will run every time udev detects new usb. My code works fine when I run it as a local user. But It fails when I use udev.rules file because it runs my script as root. How can I ...
6
votes
1answer
886 views

Make the zoom slider of Microsoft Natural Ergonomic Keyboard 4000 and 7000 scroll up and down, in 14.04 (Trusty)

I tried to use this tutorial to make scroll switch work on my Microsoft Natural Ergonomic Keyboard 4000. But I face following error: sudo: /lib/udev/keymap: command not found I have udev version ...
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0answers
151 views

3 Modems HUAWEI E220 - Finding diferent data to make permanent USB Ports

I Have 3 Modems Huawei E220 USB connected on the same hub in the back USB Motherboard Ports. After they are connected they work very well - no conflicts. When I restart the system, all USB ports ...