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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2answers
27 views

Identify out of tree modules?

I'm attempting to upgrade and test kernel 3.12. What is the most efficient way to identify out-of-tree modules that should be removed before testing? There are a few mentioned (vitualbox, nvidia, ...
3
votes
1answer
452 views

load module via /etc/modules

I want to load my kernel module hello.ko on boot in Ubuntu 12.04. I placed it in /lib/modules/3.8.0-31-generic/kernel/ubuntu/hello.ko, ran depmod -a, and added "hello" to /etc/modules. However, when ...
0
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0answers
16 views

quick question about kernel modules [migrated]

I'm very familier with linux (been using it for 2 years, no windows for 1 1/2 years), and i'm finally digging deeper into kernel programming and I'm working a project. So my questions: Will a kernel ...
9
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2answers
6k 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.
6
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1answer
1k views

“usb 3-2: can't set config #1, error -110” - USB keyboard works in Windows 8 laptop but on PC only until Linux boots

I tried 2 new USB keyboards that work until Linux starts booting. When booting I saw: [ 8.365211] usb 3-2: New USB device found, idVendor=1a2c, idProduct=0b23 [ 8.404863] usb 3-2: New USB ...
1
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1answer
18 views

Where (the directory) should I put my newly created module in the kernel?

I have created new module code. And want to compile it for my kernel. But I am not sure about I thing. Should I copy it to some designated directory before I start the compilation? Or I can just ...
0
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0answers
11 views

Check the firmware which a module needs

in http://ubuntuforums.org/showthread.php?t=2242147&page=2, The driver requires firmware: $ modinfo iwlwifi filename: ...
1
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1answer
18 views

What are files *.ko used for?

The following two commands output the same thing: $ modinfo iwlwifi filename: /lib/modules/3.16.0-34-generic/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko .... $ modinfo ...
1
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1answer
16 views

Do I have more thn one wireless driver modules?

$ lsmod | grep iwl iwldvm 232283 0 mac80211 652718 1 iwldvm iwlwifi 179412 1 iwldvm cfg80211 494362 3 iwlwifi,mac80211,iwldvm I heard that ...
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0answers
24 views

Autoloading externally compiled module at hotplug event

I have a pretty outdated embedded linux driven system with v2.6.33.7 kernel, which came without USBNET and CDC_ETHER modules. I compiled those modules to be able to attach a certain USB-LAN stick, ...
11
votes
3answers
965 views

Is USB-to-USB data transfer between two Linux OSes possible?

I want to create a USB-to-USB data transfer system in Linux (preferably Ubuntu). For this I want to use no external hardware or switch (except this cable). It's going to be like mounting a USB drive ...
21
votes
1answer
14k views

How to assign USB driver to device

This question is two-fold: First, how do you manually detach a driver from a USB device and attach a different one? For example, I have a device that when connected automatically uses the ...
5
votes
1answer
155 views

Is there a way to determine what kernel version a kernel module was compiled against?

I have recently been playing around with creating kernel modules using some crosstools for an embedded setup. It would be helpful to me in future to have the ability to identify the version of the ...
0
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0answers
24 views

Stability of internal Wireless module or adpater in Ubuntu

This is an update to my previous problem with wireless adapter or module in Ubuntu 12.04 on Thinkpad T400. Now I have installed 14.04. Sometimes when I move my laptop around a little, the ...
7
votes
2answers
3k views

Adding a new System call to Linux 3.2.x with a loadable kernel module [closed]

I want to add a particular new system call in the linux kernel 3.2.x but as a loadable kernel module (as I don't want to recompile the kernel again and again) I read through many posts on internet ...
0
votes
1answer
38 views

Get base address and size of a loaded kernel module?

How can I get the base address and size of a loaded kernel module?
1
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0answers
26 views

Xen Kernel - SCSI_WAIT_SCAN Module

We've recently deployed a HP ProLiant DL180 Gen9 with 12 x Intel 530 SSD Drives. The system is running RAID-10 on top of HP Smart Array P840. Our aim was to use Xen on this server. However, when the ...
0
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0answers
23 views

configuring kernel source for manual module compilation

I need to compile an xpad module from source, system is debian wheezy, the platform is ci20. I cannot locate linux headers-3.0.8-(...) anywhere (not on the system, not on the web, not in official ...
4
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4answers
17k views

How to solve “building the main Guest Additions module Failed”

I tried to install the VirtualBox Guest Additions module in a VM guest running CentOS but I get this error message when everything else was okay: building the main Guest Additions module Failed ...
2
votes
2answers
527 views

How can I install Fedora with a newer kernel?

I want to install Fedora on my computer with a netinstall, but it seems that the kernel doesn’t support my ethernet chip (Intel I218V). I tested Ubuntu 14.04 and Arch Linux and the ethernet chip ...
2
votes
3answers
84 views

How to take variables from another Makefile in shell script

I want to use the variables from another Makefile under the directory ~/kernelbuild/linux-3.14.37 in my own shell script. Following is the variables that I need: VERSION = 3 PATCHLEVEL = 14 SUBLEVEL ...
2
votes
0answers
56 views

Shell script for automated kernel compilation

I am trying to write a shell script to build a custom kernel on Arch Linux. I have succeeded to do write all the steps described in the Arch Linux kernel compilation page: ...
1
vote
1answer
32 views

web cam starting hangs os

I faced a strange effect as ... when my notebook wakes up from suspend I can start and close my web cam with guvcview 1-3 times; But after while on 3dr or 4th starting attempt (I didn't count for ...
0
votes
1answer
27 views

How do I install freeBSD headers ?

I have been a arch linux user for the past 2 years and now moving on to freeBSD for kernel development. I have install freeBSD and want to compile a dynamically loadable kernel module for freeBSD. ...
2
votes
1answer
1k 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 ...
1
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0answers
11 views

Fair traffic classification using TC

I want to apply a qdisc I developed on myself (quite similar to netem. Think netem.) to several IP-addresses using the filter classifier. No problem this far, I could do so using the prio qdisc or HTB ...
1
vote
1answer
137 views

Compiling kernel but doesn't build kernel modules

I am trying to compile a linux-sunxi kernel for my Banana pi. Using this link: http://sunxi.org/Linux_Kernel#Compilation Unfortunately I am getting the following message at the bottom when I am ...
1
vote
1answer
76 views

Loading kernel modules that were compiled for another kernel failed

I want to load kernel modules, ip_gre.ko and gre.ko, on a embedded-device running embedded-linux to make that device to support GRE protocol. Since I do not want to change Embedded-linux device's ...
0
votes
1answer
25 views

Sunix Low Level Parallel port driver not working

Background: I am currently in the process of updating a Industrial PC + software from Debian 4 (etch) to Debian 7 (Wheezy) due to hardware obsolescence, one of the few pieces of hardware being shared ...
0
votes
1answer
52 views

lsmod lists only one single module, no other modules available to load, how do I proceed?

The system debian wheezy, platform ci20, stock imagination kernel 3.0.8. the output of lsmod lists only one module, pvrsrvkm, which is the "out of tree graphics driver" by imagination. The problem ...
2
votes
0answers
77 views

Do I have a dead NIC?

OK so this is kind of a long one due to command output. Not necessarily in complexity as I'm only showing some basic t-shooting so any feedback would be appreciated. Basically, I have a fairly new ...
0
votes
0answers
32 views

Compiling a loadable kernel module(Debian/Ubuntu)

This question is a follow up of this one. I am trying to compile the ELF loader as an individual LKM and use it as a standalone application(replacing the original module within the base kernel sounds ...
1
vote
0answers
645 views

How to install Realtek RTL8723BE wireless driver on debian?

I installed Debian Wheezy 7.8 on a Lenovo G50-70 x64, it seems that I don't have the driver for my wireless card installed, the output of iwconfig: lo no wireless extensions. eth0 ...
1
vote
1answer
51 views

What's the difference of `/etc/modules-load.d` and `/etc/modules`?

I red the introduction of them and found that, they both deal with module loading during boot time. So, what's the difference of these two different configuation ways?
2
votes
0answers
45 views

How to insert a modified ELF loader given the current ELF loader is present?

I need to modify the ELF loader's kernel implementation of an Ubuntu 14.04 distribution. Having downloaded the sources using: sudo apt-get source linux-image-$(uname -r) I ran the configuration ...
1
vote
0answers
65 views

Compiling a loadable kernel module outputs several warnings about undefined functions [closed]

This question is a follow up of this one. I am trying to compile the ELF loader as an individual LKM and use it as a standalone application(replacing the original module within the base kernel sounds ...
0
votes
0answers
31 views

How do I install the `uvcvideo` module on Android 4.4.2

Setup UDOO QUAD Android KitKat 4.4.2 SD image Microsoft LifeCam Cinema Problem Android 4.4.2 SD Image is configured to use the CSI camera. To use USB camera you need to recompile kernel and ...
0
votes
0answers
25 views

Is it safe to upgrade kernel manually on a system which is using NVIDIA drivers?

Upgrading kernel manually on Ubuntu 14.04 can cause trouble with NVIDIA drivers? (one of the troubles could be booting to black screen) I had lot of trouble with installing NVIDIA graphics drivers ...
0
votes
1answer
42 views

Trying to make a Universal Makefile

I'm working on my own netfilter module for the first time. According to internet documentation, The simplest module contains the following C code: //'Hello World' kernel module, logs call to ...
1
vote
2answers
283 views

Library routines in linux kernel

In the linux kernel, there is a section "Library routines" with a snippet shown below: Library routines ---> <M> CRC-CCITT functions <M> CRC ITU-T V.41 functions <M> CRC7 ...
0
votes
1answer
52 views

Few questions about system calls and kernel modules (kernel services in parallel)

I have few questions about system calls and kernel modules. Let's assume we have two applications (A and B) and each of them is running on a different core. (A-CPU 0, B-CPU 1) When two applications ...
2
votes
1answer
60 views

modinfo when a module was compiled into kernel statically wouldn't work — workarounds?

modinfo is rather useful tool when it comes to tweaking module's parameters (at least discovering what options are availalbe), for e. g.: $ modinfo dummy filename: ...
0
votes
2answers
117 views

Buildroot - missing i2c kernel modules

I've used Buildroot to build a minimal operative system. During the configuration step with the menuconfig utility I specified to install I2C tools. The option was is Target Package -> Hardware ...
2
votes
1answer
387 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 ...
4
votes
1answer
46 views

How to list all loadable kernel modules?

I'm looking for a few kernel modules to load i2c-dev and i2c-bcm2708. But the modprobe command returns: sudo modprobe i2c-dev modprobe: module i2c-dev not found in modules.dep How can I list all ...
1
vote
4answers
7k views

The command to upgrade to a new kernel from Ubuntu repositories

In the distro I'm most familiar with -- ALTLinux, a command like apt-get install kernel-image-std-def#3.0.... would install another kernel, and update the initramfs and the bootloader config ...
1
vote
2answers
711 views

Blacklisting won't work for kernel module “radeon”

I tried to blacklist kernel module "radeon" as it is classhing with my propietary drivers. I tried it doing it in two ways but none of them worked and every time command mkinitcpio -M will list ...
1
vote
0answers
23 views

Kernel compilation for minimum program execution

Compiling the Kernel requires me to configure modules. I am unsure how to configure a Kernel which only supports following things: Programs compiled with gcc on other machines (glibc). I want to run ...
0
votes
1answer
437 views

custom kernel and firmware loading

After I have compiled my kernel, and when I type make modules_install, not only are the modules copied into /lib/modules/ but also firmware is copied into /lib/firmware/. The following is the end of ...
2
votes
2answers
2k views

debian does not detect serial PCI card after reboot

I have installed a PCI card with two serial and one parallel port on it. the chipset is MCS9865. I downloaded the latest driver(V1.0.12) from here. I ran make and make install. now the two serial ...