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 ...

learn more… | top users | synonyms

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 ...
17
votes
1answer
8k views

Linux: What is a tainted kernel?

Under certain conditions, the Linux kernel may become tainted. For example, loading a proprietary video driver into the kernel taints the kernel. This condition may be visible in system logs, kernel ...
5
votes
2answers
2k views

Can I detect if my custom made kernel was built with module support?

I have been provided with a vendor supplied minimal linux installation. From an answer to a previous question I discovered that it is possible to build a kernel with or without module support. I have ...
4
votes
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?
21
votes
1answer
15k 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 ...
22
votes
4answers
4k views

How to find the driver (module) associated with a device on Linux?

On Linux, given: a device, for example /dev/sda, and its major and minor numbers, for example 8, 0, how can I know which module / driver is "driving" it? Can I dig into /sys or /proc to ...
10
votes
2answers
7k 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
votes
1answer
713 views

Automatically apply module patch and compile kernel when updated?

I've recently applied a one-line patch to drivers/bluetooth/btusb.c in order to enable compatibility with my Bluetooth device. However, whenever I get a kernel upgrade, the patch will be lost until ...
7
votes
1answer
4k views

Webcam on Angström

I am running Angström on my BeagleBoard-xm. I want to use a webcam (I have Microsoft LifeCam Cinema and Logitech C310). I installed v4l-utils, libv4l-dev and kernel-module-uvcvideo with opkg. But the ...
6
votes
1answer
10k views

Unable to load module: Disagrees about version of symbol module_layout

Following this tutorial to write my first driver. The Makefile is: # Makefile – makefile of our first driver # if KERNELRELEASE is defined, we've been invoked from the # kernel build system and can ...
4
votes
1answer
3k views

usb kernel module does not load on demand but works fine with insmod and modprobe from the shell

I have a USB Linux Kernel module that compiles and builds. Running insmod loads my module and dmseg and tail -f /var/log/debug shows me it works as expected. Running depmod -a then modprobe from the ...
3
votes
1answer
2k views

How to make EDID

I read the post here and I tried to make do with what I understood from the post but here are some questions: Where is the /lib/firmware located in for example /usr/src/linux/lib/firmware or ...
2
votes
1answer
5k 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 ...
1
vote
0answers
79 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 ...
7
votes
1answer
3k 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. ...
4
votes
1answer
1k views

FedUp, unable to upgrade to Fedora 20

I am upgrading my Fedora OS to the latest version 20 as the current one is nearing end of life. Fedora introduces a new upgrade method called FedUp that allows user to perform an upgrade over the ...
2
votes
0answers
92 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 ...
2
votes
2answers
1k views

FATAL: Module hello.ko not found

I'm using CentOS-6.5 and default kernel is 2.6.32-431.11.2.el6.x86_64. I downloaded 2.6.32 and built that kernel (under /lib/modules/2.6.32). I wrote a module for simple hello world program. This ...
2
votes
2answers
2k views

lsmod outputs: Not tainted [duplicate]

I ran lsmod command on an emulator for a board, and the output is Not tainted . What does that mean ?
2
votes
1answer
1k 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 ...
2
votes
1answer
646 views

lsmod returns nothing on my embedded device

I have put a vendor supplied embedded Linux installation (called X-Linux) onto a hardware device. I ran lsmod to see what modules are loaded and nothing at all is shown. Also there is no /proc/modules ...
2
votes
1answer
265 views

Running a script every time a new kernel is installed

I'm currently having to recompile my wireless driver from source every time I get a new kernel release. Thinking it would be awesomely hackerish to automate this process, I symlinked my Bash build ...
2
votes
1answer
921 views

Where can I find information on Linux device driver parameters?

I want to work on Linux module programming (Device Drivers). And as a my college project I have to do profiling or benchmarking of a kernel modules based on various parameters. Everywhere I looked, I ...
1
vote
0answers
315 views

Can only initialize Ad-hoc mode after restarting iwlwifi mod and network manager

I am running Ubuntu 12.04.4 with network interface: *-network description: Wireless interface product: Centrino Advanced-N 6235 vendor: Intel Corporation ...
1
vote
0answers
385 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 ...
1
vote
2answers
933 views

Kernel module for Cisco VPN client doesn't compile under ubuntu 10.04 LTS?

I am trying to install a Cisco VPN client under Ubuntu 10.04 LTS. In the extracted folder I type: alex@alex-laptop:~/Downloads/cisco4.8/vpnclient$ sudo ./vpn_install and there is output of activity ...
0
votes
0answers
34 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: ...
0
votes
1answer
145 views

What's the difference between CONFIG_R8169 and CONFIG_R8169_VLAN?

.config from /usr/src/linux-2.6.38.8 contains: CONFIG_R8169=m CONFIG_R8169_VLAN=y What's the difference between CONFIG_R8169 and CONFIG_R8169_VLAN?