Udev is a Linux process that manages device file entries under /dev
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47 views
Allow non-root user to read/write /dev files
In my /dev folder, I would like the following files to be user readable and writable:
/dev/ttyUSB0
/dev/gpib0
How do I do this without using chgrp? I can edit /etc/udev/rules.d but I do not know ...
0
votes
0answers
31 views
External disk doesn’t appear in /dev/
I have an external (USB-2.0) hard drive. Today I couldn’t mount it after plugging to my computer. When I look in /dev/
$ ls /dev/sd*
There is no new disk, only sda and sdb with their partitions, ...
1
vote
1answer
36 views
MAC Address changes after dirty shutdown
I'm having a strange issue which I originally thought was tied to the fact that I created an Ubuntu system from an image of another. However, after reinstalling Ubuntu from scratch I am getting the ...
3
votes
1answer
74 views
Cloned Linux system and /etc/udev/rules.d/70-persistent-net.rules
I set up an Ubuntu system and configured it properly, including defining eth0 in /etc/network/interfaces. I then imaged that system and cloned it on a new system.
When I booted up the system the ...
2
votes
1answer
41 views
udev rule for a USB device and ignoring others
Is it possible to create a udev rule for an USB device and ignore other USB devices?
I want my system to support HID USB touchscreen (hid.ko) and ignore HID devices such as keyboards, mice, etc.
1
vote
1answer
36 views
Which udev rule triggered?
a. Is it possible to find out, which udev rule triggered as soon as some USB/serial device plug-in or plug-out ?
b. Is it possible to reload one specific rule out of many rules, without device replug ...
2
votes
1answer
43 views
can not create /dev/shm
I need to create /dev/shm on an embedded ARM system.
From "Installed The Latest Changes to Current and......".
I see that it can be created with mkdir /lib/udev/devices/shm, but I'm wondering what ...
4
votes
1answer
51 views
lshw lists my drive but it has no /dev file
Ive just got a dedicated server which has 2x 1TB HDD. However when I type df -h I get the following:
[root@sd-56537 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda2 916G ...
3
votes
1answer
63 views
Kernel recognizes USB device but then I can't find it in /sys or /dev
When I connect my Samsung 390G (a cheap cell phone!) to Ubuntu 13.04, dmesg seems to indicate that the storage device thereon is recognizable:
[Sun Dec 29 01:26:10 2013] scsi16 : usb-storage ...
2
votes
2answers
44 views
Kodak still camera udev problem
My still camera is not includev in udev list.
lsusb stands:
Bus 007 Device 016: ID 040a:058b Kodak Co. Digital Camera
So I add to /usr/lib/udev/rules.d/40-libgphoto2.rules
...
1
vote
1answer
26 views
udev GROUP and MODE assignments on symbolic link have no effect
I'm trying to connect my velleman k8055 board per usb to my pc.
For this I have the udev rule
SUBSYSTEM !="usb_device", ACTION !="add", GOTO="velleman_rules_end"
ATTRS{idVendor}=="10cf", ...
4
votes
2answers
173 views
Disable the external keyboard from a script
I have a udev rule for my external keyboard. I can catch events, and by running a script I can also reach udev env variables. Can I disable keyboard with udev? Or must I use a script to disable the ...
1
vote
1answer
79 views
How to disable a usb sound device with udev
How can I disable USB device by Vendor ID? So I have:
[root@piotr ~]# lsusb
Bus 001 Device 002: ID 058f:9254 Alcor Micro Corp. Hub
Bus 001 Device 003: ID 0d8c:000c C-Media Electronics, Inc. Audio ...
3
votes
2answers
63 views
Is there a uniform way to discover information about devices?
UPD: Changed question title from manage devices to discover information about devices
One of the frequent thing I do is look up info about devices on my systems. And I am constantly find myself ...
5
votes
2answers
99 views
/dev/disk/ lists disks, why /dev/net/ doesn't list network interfaces? [duplicate]
I know that udev manages devices in /dev and I expected to find information about available network cards (hardware) or at least network interfaces (software) there.
ifconfig output shows me eth0 and ...
