Use this tag for questions about loading, configuring, or compiling them. See also /drivers for questions about which modules to use for specific hardware. A kernel module is a bit of code that can be added into the kernel by the administrator while the system is running, typically providing one ...

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103 views

Easiest way to upgrade my onboard NIC drivers on a machine without connectivity?

I was assigned a workstation where I work and I needed to install Debian on it. I chose Wheezy because the other machines I use also have it, but I ran into a problem. The workstation is a Dell ...
2
votes
0answers
350 views

TUN/TAP Will not load

I have an OpenVZ server but can't seem to get the tun/tap module to load. I ran modprode tun on the hostnode but when I go under the VM I get: Tue Sep 24 03:08:36 2013 Note: Cannot open TUN/TAP dev ...
0
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0answers
235 views

How to compile video4linux for ARM?

I would like to use a webcam using a Linux over ARM board. Through reading, I have discovered video4linux so I would like to compile it for ARM. My unique notes are: git clone ...
7
votes
1answer
2k views

How to disable keyboard?

Without unplugging my keyboard I'd like to disable it from the terminal; I was hoping that this could be done using rmmod but based on my currently loaded modules it doesn't look like it is possible. ...
0
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4answers
1k views

How to show loaded kernel modules inside OpenVZ virtual server

I am trying to find out what kernel modules are loaded inside a OpenVZ virtual server. Command lsmod is empty and I believe the reason is the way how OpenVZ's virtualisation is working. Specifically, ...
2
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2answers
2k views

What is the sequence loading linux kernel module on startup? How priority is set to them?

I have a Linux kernel module which I compiled dynamically. How is it added to startup? There are lot of .ko files in /lib/modules. How is priority set for loading these modules?
2
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3answers
662 views

How do I know which kernel configuration option enabled my driver?

TL;DR: when I was trying to compile a driver for USB DAQ device I have reconfigured the kernel. The driver refused to compile under the default distro's kernel but everything works with my tweaked ...
1
vote
1answer
330 views

Kernel module blacklist not working

I'm trying to figure out how to blacklist modules, and I'm trying it on the usb storage. Unfortunatelly it seems ot have no effect, and I get the module in even if it's not used (apparently). My ...
1
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3answers
162 views

Does a fault in a kernel module necessarily result in a system crash?

Or is it possible to overcome the fault, since the code isn't in the monolithic part of the kernel?
0
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1answer
54 views

How can I change a module kernel version to a custom version so that it gets loaded on an ARM board?

I'm hacking on an ARM926 based board, with a custom kernel based on 2.6.30. I've got a program that needs a specific kernel module but since I have no kernel source I can't compile the module I need ...
0
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1answer
100 views

install a kernel module into BeagleBoard (BB)

I want to install a kernel module (For example "Hello world") on the BeagleBoard(BB). (The installed OS on the BB is an Ubuntu Linux). If anybody already worked on this could you suggest me a step by ...
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1answer
441 views

removing kernel modules not working for some modules [closed]

unfortunately i couldnt install a machine with minimal installation as a virtual machine ,so i am trying to prevent loading of unwanted modules from kernel using blacklist file. Added following to ...
2
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1answer
988 views

Scaling issues of i7 3520M with intel_pstate module on Kernel 3.10.0

Few days ago I updated my openSUSE 12.3 system from Kernel 3.9.8-1.gf3348a8-desktop to 3.10.0-1.g3dcd746-desktop and since then, turbo mode of my i7 3520M is enabled by default and it does not ...
4
votes
1answer
1k views

Cannot remove or reinsert kernel module after error while inserting it without rebooting

I am learning how to create kernel modules and it was all working fine: I compiled, inserted the .ko with sudo insmod cheat.ko, and the printk messages inside the init function (set by module_init) ...
1
vote
1answer
535 views

Installing a platform driver

I have recently acquired a device driver for an integrated watchdog timer on a x86 board on which I am running a minimal Linux system. The kernel is 3.6.11 and it has been built using buildroot. My ...
1
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1answer
447 views

How to set up a blacklist for insmod?

I want to block a certain driver module from loading in the linux kernel. So I created a file in /etc/modprobe.d/cdc_acm.conf. In this file I added the following line: install cdc_acm /bin/false ...
2
votes
1answer
6k views

Excluding kernel modules through /etc/modprobe.d/blacklist.conf does not work

I don't want to load the kernel module nouveau on my debian box at startup, so I put the following in /etc/modprobe.d/blacklist.conf: blacklist ttm blacklist drm blacklist nouveau I even did a ...
1
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1answer
4k views

I need a step by step guide to build kernel modules in ChrUbuntu

I don't have experience building kernel modules. And worse, I'm trying to do it on ChrUbuntu, so it seems that I cannot follow the existing Ubuntu guides. For example, this command fails: # apt-get ...
3
votes
2answers
8k views

Ubuntu make fails with No such file or directory /lib/modules/3.4.0/build

I am trying to build the CP210x driver for the 3.x.x kernel on ChrUbuntu. Build instructions: Ubuntu: make ( your cp210x driver ) cp cp210x.ko ...
1
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1answer
961 views

Assembly files in obj-m list when building kernel modules

I'm trying to build kexec as a module, but I'm running into a weird problem. My obj-m is: obj-m += kexec.o machine_kexec.o relocate_kernel.o When I run the makefile, it complains that there's "no ...
1
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1answer
498 views

Can kexec be built to a standalone binary, to be used where kexec was not built into the kernel?

I have remote embedded Linux devices I am trying to update to a new kernel without having to physically access. However, the command line options they boot with make one of the MTDs read only - I ...
1
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1answer
291 views

Integrating custom kernel module into Debian

I've built a kernal module from source and now would like to load the module at boot. The .ko file is in the build directory in my user folder, and I know it works because running insmod ./vizzini.ko ...
1
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0answers
72 views

Decreasing mouse sensitivity at kernel level

I have developed a custom-GUI Server, which runs on virtual console of Linux.For mouse-handling purpose, it reads the mouse device file /dev/input/mice and retrieves the event data and updates ...
1
vote
1answer
422 views

Virtualbox kernel modules not loading at boot

I have been running virtualbox on an Ubuntu 12.04 laptop for a while and it has all worked smooth, but suddenly, probably after a kernel upgrade, the vbox* modules are not loading at boot, if I ...
1
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2answers
295 views

Does linux modules/drivers belong to kernal space or user space

Some articles say that modules/drivers belong to kernel space as it take part in forming the kernel; (reference: http://www.freesoftwaremagazine.com/articles/drivers_linux) While others say that ...
2
votes
1answer
973 views

List of packages managed by DKMS

How do I get a list of packages (and their versions) managed by DKMS so I can easily add/remove them?
1
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2answers
1k views

What module for network card Intel Corporation Device 1521?

I'm installing a new server and I'm not able to figure out what module should I load to make its on-board network card work. Calling lspci prints: Ethernet controller: Intel Corporation Device 1521 ...
5
votes
5answers
4k views

How to determine which module taints the kernel?

My kernel keeps panicking when connected to a certain wireless network. I'd like to send a bug report but my kernel is apparently tainted. From /var/log/messages: Apr 17 21:28:22 Eiger kernel: ...
3
votes
2answers
7k views

Automate modprobe command at boot time on Fedora

My distribution is Fedora 17 Gnome. Every time I reboot/restart my computer I need to run this command as root: modprobe rt2800usb How can I make it permanent?
3
votes
2answers
2k views

Why does modinfo say “could not find module”, yet lsmod claims the module is loaded?

According to the man page of lsmod the command shows “what kernel modules are currently loaded”. I wrote a script that uses modinfo to show what kernel object (.ko) files are actually in use: ...
1
vote
1answer
97 views

how to stop adding unused module to loadable kernel module?

Is there any way how to stop unused module to loadable kernel module other than putting them in the mod probe blacklist.
2
votes
1answer
454 views

How to run Different congestion control algorithms in FEDORA 17 ..?

Earlier versions of Fedora has different loadable kernel modules which includes diffrent congestion control algorithms etc at (/lib/modules/"kernel-name"/kernel/ipv4).These are present in the form of ...
1
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0answers
321 views

How to load kernel module in Chromium OS?

I've installed the Chromium Vanilla by Hexxeh to a USB drive, but I can't use it on my computer because it lacks the carl9170 driver, which is needed by my adapter (a D-Link DWA-160.) I've managed to ...
4
votes
2answers
694 views

kernel module function call

I write a kernel module which has initialize and end function. I want one more function and want to call it from the user space process at any time i want. Is it applicable ? If so, how ? I am ...
2
votes
0answers
276 views

How to configure buildroot to add a sound device?

I've used a given board configuration to reconfigure it for my individual board. My board has a CS4270 sound device of Cirrus Logic. My uImage is booting successfully on my target hardware, but an ...
5
votes
2answers
920 views

Kernel Modules: .o vs .ko

It seems that files containing kernel modules are called .o, at least that's what I figure when looking at a tutorial like this one. However, on my debian squeeze box, these files seem to be called ...
5
votes
3answers
1k views

Disadvantages of linux kernel module?

I am trying to understand the disadvantages of using Linux kernel modules. I understand the benefits of using them: the ability to dynamically insert code into a running system without having to ...
0
votes
2answers
2k views

How to load a module in Gentoo?

I am using Gentoo, with kernel 2.6.30, and I tried to load a module with modprobe usbcore, but it fails with modprobe: module 'usbcore' not found. However, I can find a directory with that name in ...
2
votes
1answer
474 views

(Solved) Linux cdc_acm device - unexpected characters sent to USB device

I'm having trouble with unexpected characters being sent on a USB port with the cdc_acm driver. What makes this all the more perplexing is that the code runs fine on Ubuntu 12.04 (3.2 kernel) but ...
1
vote
0answers
178 views

after enabling Xinerama (in AMD condor Dual-Head Graphics Card) the system graphics hangs

I have a problem in my AMD Condor Dual-Head Graphics Card When I enable Xinerama from "System → Preferences → AMD Catalyst Control center (Administrative)" my RHEL Server 6.3 (x64) Graphics hangs. ...
2
votes
1answer
987 views

Kernel config for ASUS P8Z77-V mainboard series

I want to build a kernel (3.6 series) for a system with a ASUS P8Z77-V mainboard. Which settings fit to the built in components? (The ideal answer would contain an example .config for this board.) # ...
5
votes
2answers
1k views

What package could “linux-headers-3.7.5-1-ARCH” mean?

I'm debugging a closed-source software installer that seems to have some pre-conceived notions about my distribution. The installation aborts after not finding apt-get. The command it attempts to run ...
5
votes
1answer
3k views

Sound not working when both the sound card and HDMI use the Intel HDA driver. How to exchange their device loading order?

I have an Acer Aspire One 522 netbook which has an Intel HDA sound card based on the Conexant CX20584 chipset. Although KDE does output sound when starting up, flash and probably many other apps which ...
1
vote
1answer
522 views

Compile Linux Kernel w/ Dynamically (Un)loadable usbserial Module

I've attempted to install drivers for an FPGA device, but require that I remove the usbserial module. This happens to be impossible because usbserial is a built-in module. It was suggested that I ...
2
votes
1answer
90 views

Standard way to expose device file to userland applications running on an unprivileged user account?

I just finished the first version of a Linux kernel module I've written in C. The module creates a device file (/dev/wn0) that controls a USB device with three LED lights. For example, running as ...
10
votes
4answers
26k views

Determining cause of Linux kernel panic

I'm running an Ubuntu 12.04 derivative (amd64) and I've been having really strange issues recently. Out of the blue, seemingly, X will freeze completely for a while (1-3 minutes?) and then the system ...
9
votes
2answers
5k views

Find out which modules are associated with a usb device?

Could you recommend a way to figure out which driver is being used for a USB device. Sort of a usb equivalent of lspci -k command.
1
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0answers
559 views

Busybox `uname -r` shows wrong kernel version

My kernel is 3.2.27 and /lib/modules/ contains 3.2.27 + folder. But when I am using /# uname -r 3.1.9+ It's showing a strange output. My problem is that for modprobe depends on uname when I put ...
6
votes
1answer
3k views

ALSA/ASoC: How to correctly load devices/drivers?

I am using Buildroot to build an embedded Linux (2.6.39.2) system for the NXP LPC3250 microcontroller. Right now, I'm trying to get ALSA/ASoC up and running, but I'm having some issues with getting ...
2
votes
1answer
806 views

Build kernel in one machine, install in another

I want to build my Linux kernel on my host and use it in my VWware virtual machine. They both use the same Ubuntu kernel now. On my Host, I do make and make configure. Then, what files should I copy ...