Programming :: Insert Kernel Module Into Menuconfig

Jan 14, 2011

I am looking for information to insert kernel module into kernel. I am not looking at dynamically insert of kernel module using insmod, modprobe etc. I am looking for statically insertion of kernel module procedure, such as what to change on makefile, what to change on menuconfig, what to change on .config file, etc.

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General :: Getting Error "invalid Module Format" And "insert Kernel Module" / What Is This?

Feb 22, 2010

What is the error "invalid module format" and the message "insert kernel module" mean? And whats the reason for the same?

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Networking :: Unable To Change Bnx2 From Built In To Module In Menuconfig

Jun 25, 2010

I am having trouble upgrading my broadcom drivers ( bnx2 ) for some reason i can't switch Broadcom NetxtremeII support from "built in " to module in menuconfig. can someone show me why this is the case?


also i do have loadable module support enabled[*] Enable loadable module support

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Programming :: Paralel Port Kernel Module Programming

Jan 5, 2011

do you have any code to flash led lights with paralel port (device driver programming)or any lecture about this subject .if there is a working code this would be better ofcourse.

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Fedora :: F12 2.6.33 Kernel .config For Menuconfig

Mar 14, 2010

I'm experimenting with 2.6.33-ck1 mainly because I want to try the BFS. I successfully configured and installed the patched kernel, but I'm experiencing various problems on the desktop. The biggest is Chromium not working at all, but there are several others, including graphical glitches in firefox. I'm sure I left some important module off or made a mistake for some settings My question is that is there a 2.6.33-fc12 kernel yet, and does it have a .config available? I'd like to load those settings in menuconfig and use them as a starting point to properly configure and complie a -ck patched kernel.

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General :: Record Kernel Menuconfig Screens?

Nov 22, 2010

Is there any way to record kernel menuconfig screens? I would like to have a record of the configuration as it looks to the menuconfig screen user, with each successive sub-menu indented. Copy and paste gets the data but the frame/box drawing characters are messy. Here's the first menu:


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Ubuntu :: Make Menuconfig Returns An Error In Kernel Compilation

Jul 12, 2010

I'm simply trying to compile a vanilla kernel from, I've done it before, however "make menuconfig" returns an error after I've made my changes to the config file.


Why is make returning that error? I am using a 64-bit kernel.

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Debian Programming :: Building Kernel Module

Dec 8, 2013

I'm trying to build the kernel module for dvbhdhomerun. The problem is the linux kernel headers provided by Debian do not have the dvb header files. Trying to set up my own kernel source tree to use is not working out so well.

I'm following the instructions in the Debian section here: [URL] ....

My first try compiled, but the modules ender up under /lib/modules/3.2.51/extra instead of /lib/modules/3.2.0-4-amd64/extra. Why?

I tried to start over, but noticed this while running apt-get source linux-image-3.2.0-4-amd64:

Code: Select allReading package lists... Done
Building dependency tree       
Reading state information... Done
Picking 'linux' as source package instead of 'linux-image-3.2.0-4-amd64'
NOTICE: 'linux' packaging is maintained in the 'Svn' version control system at:

[Code] ....

The failure to verify the signature has me concerned, but beyond that, what do I do about the different version number when compiling and installing the kernel modules?

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Programming :: Compiling Kernel Module Using (/asm/system.h)

Apr 3, 2011

I`m trying to compile sources of kernel module which has been written for kernel 2.6.9. There were many changes in kernel headers since then in current kernel sources. I`ve found that old /asm/system.h was moved under architecture dedicated directory /arch/*/include/asm/system.h. Anyway during sources compilation I`m having errors related to kernel sources. It looks like there is something wrong with this /asm/system.h


../asm/system.h: In function �__cmpxchg�:
../asm/system.h:248: error: expected string literal before �LOCK_PREFIX�
../asm/system.h:254: error: expected string literal before �LOCK_PREFIX�


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Programming :: Modifying The Elevator.c Module In Kernel?

Feb 22, 2011

There is a file called elevator.c. It is written as a module (i.e it has specific init and exit functions). However we are not able to see it in lsmod listing. We are working on a project where we need to modify this file. Compiling every time we change something will be time consuming. Is it possible to compile just this file and insert it as a normal module?

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Programming :: Compiling Kernel Module In Ubuntu?

Jul 6, 2010

I have just started learning Device driver programming in Linux and am stuck in my first program. Its just to see init_module and cleanup_module calls to use printk and see results using dmesg. program is:


#define MODULE
int init_module(void)


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Programming :: Writing A Trivial Kernel Module ?

May 28, 2010

I am trying to learn how to write a kernel module. I am following the excellent guide from The Linux Documentation Project called The Linux Kernel Module Programming Guide v.2.6.4.

My machine is running Ubuntu Lucid Lynx (10.04)


I installed the corresponding linux headers and just to make sure I also installed the linux source and extracted it in /usr/src

I am trying to run the following trivial kernel module


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Programming :: Writing To Console From Kernel Module

Mar 2, 2011

I'm currently doing a tutorial for writing kernel modules. Right now I'm still at the very beginning, i.e. writing my helloworld stuff.

But what I like to do now is to write stuff onto the console, and I don't get it. According to my tutorials I can print stuff on the console using the printk()-function as long as the priority-level of the macro used in printk() is lower than the console_loglevel (how can I find that value out btw?).

But it doesn't work for me. Even if I use KERN_EMERG it still gets only logged, but not printed on the console and I thought KERN_EMERG get always printed...

Here's my code:



Everything works fine. But as soon as there are any blanks in mystring, e.g.


I always get


Why do I get this error and how can I insert string with blanks?

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Debian Programming :: Compiling Linux Kernel Module

Aug 27, 2014

I'm trying to compile a Linux kernel module called hello-2.c using the command "make -C /lib/modules/$(uname -r)/build M=${PWD} modules" (without the quotes) (which I found online), and the following is the (seemingly successful) output.:

Code: Select allmake: Entering directory `/usr/src/linux-headers-3.2.0-4-amd64'
  Building modules, stage 2.
  MODPOST 0 modules
make: Leaving directory `/usr/src/linux-headers-3.2.0-4-amd64'

However, I don't see a hello-2.ko (in the same folder or anywhere else for that matter). I'm Using Debian GNU/Linux 7.6.

Everything I am doing is within a folder/directory called "thefolder" (without the quotes) in the "/tmp" directory (without the quotes).

Why I can't see a hello-2.ko, and what to do to get it?

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Programming :: Adding External Module To Kernel Source?

Apr 27, 2010

There is a module A which is compiled with the kernel. I wrote an external module B which exported a symbol using EXPORT_SYMBOL.The module A now needs to talk with that exported symbol (function call). For that i modified A so that it includes the function call from B. However i now get unidentified symbol errors during 'make' operation as symbols of B are not present during kernel compile and A now kind of depends on B.

One solution is that make B part of the kernel as well. However, it would mean that whenever now i try to compile a kernel with a different source, i have to modify the config files and everything to accommodate B.Hence i am seeking a solution which does not include modifying the kernel.

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Programming :: Build Module Against Headers That Are Not From Running Kernel?

Apr 13, 2011

I'm trying to debug a module I programmed but I don't want to do it on the running host but against UML (don't want to reboot every 5 minutes).

The UML kernel I downloaded is I have already downloaded the ubuntu kernel headers for this version (they belong to natty though I'm running maverick.... when I installed the .deb file with dpkg I had no problem at all).

Now I'd like to build said module against these headers. How can I do it?

Here's the makefile for my module code...

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Programming :: Kernel Module - Flashing Caps-lock Led

Apr 16, 2010

I need a module that flash Caps-Lock led. Is it possible to use outb() function here for sending data to keyboard via port 0x64 ?

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Programming :: Firing Some Shell Command Like Ls - Mkdir Dir-name Via Kernel Module

Jun 10, 2010

How can we fire a shell command like ls,./a.out automatically in kernel space via a kernel module ? i.e. replacement of system() function of user space into kernel space.We need to develop a kernel module which can fire some shell command let say "firefox [url]" automatically to open google automatically from module.

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Programming :: Assign IP Address / Renew DHCP From Kernel Module?

May 14, 2010

I'm currently working with wireless network kernel module.

This device initialiy gets its IP address by using DHCP,
but the problem is sometimes the new IP assigned for internal reason.

So what I want to do is assigning new(changed)IP address into exsiting
interface, or occuring DHCP renew event to cause update IP from kernel
level. This shold be done without user's intervention, so whenever the
kernel module detects IP changed(via underlying wireless
communication), it automatically correct update its IP address.

Q1) any functions or api to cause DHCP renew event from kernel level?
Q2) or any functions or api to assign IP address to specific interface?

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Networking :: Insert Module In System Run On AT91SAM9261EK?

Mar 7, 2011

When I tried to insert module in my linux system run on AT91SAM9261EK , I've got something like :


I suspect I have missed some kernel settings when I compiled my kernel so that the kernel cannot recognize those functions ..

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General :: Unable To Insert The Driver Module

Jun 18, 2010

I am viswanath. i want to know how to insert a driver module in Linux fedora 2.6.while using insmod <driver name> it showing an error. shall i install any plugins.

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Ubuntu :: Load Module On Usb Dongle Insert?

Nov 12, 2010

I have a problem with a wireless mouse on my laptop running Ubuntu 10.10. If thw receiver is plugged during boot, it works out of the box. But if I plug it in afterwards, I have to manually do

sudo modprobe usbhid
for it to start workin.

My question is how to automatically load a module when a usb device with a given id is inserted?

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Programming :: Kernel Module - Task_struct / Files Struct, Open_fds, And The Open File Descriptors In Task?

May 1, 2010

This for Kernel I'm trying to code a kernel module that displays process information.

how to count opened file descriptors per task. I have been able to write a module that lists all the current process names along with their pid number in /var/log/messages. Basically, I cycle through the ring of processes using the macro for_each_process(task) and printk the comm and pid of each task. I'm trying to see how many file descriptors each task has open. I've been reading up in books and all over the internet. At first I thought I needed to access max_fds under files_struct, but that just lists the maximum number of file descriptors that can be opened per task, which by default is set at 256. I then thought about counting the elements in the fd_array. But then I learned that every task's fd_array is initially set at 32. Now I know that I need to access open_fds of type fd_set * in files_struct. open_fds is a pointer to all the open file descriptors. The problem is that I don't know how to access a pointer of type fd_set.

Is there a good guide or book that really focuses on type fd_set and open_fds? Every book and resource I've read never really go into depth on this. relationship between files struct, open_fds, and the open file descriptors in task?

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General :: Adding A New Kernel Module To Wireless Driver Module?

Apr 22, 2010

I want to add some code in existing linux2.6.33.2 to enhance kernelI want to know how to start and where to add code.

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General :: Install Module U32 Into The Netfilter Module For Kernel 2.6.27

Jan 30, 2011

I need to install module u32 into the netfilter module for kernel 2.6.27.

I did not see the source code in the kernel version I have. where can I find the code for U32 module.

I have checked "" and looks like POM is discontinued. Is the u32 module committed to kernel version 2.6.27 or need to patch it. If yes, where can I find the patch?

I building the kernel for a MIPS processor.

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Programming :: Kernel Module "read()" Return Value?

Apr 6, 2010

I wrote a character device driver for an Embedded Linux build (Kernel Revision running on ARM9. In the module's "read()" function, I'm returning the number of bytes that were copied into the user buffer. I saw some module code samples online and in most cases the "read()" function is returning the number of bytes read.The very strange behavior I saw in my case was, if I use a variable to return the value from the module's "read()" function, the user application reading from the module always saw "0".For instance:

static int zlg7289_read(struct file *file, char *buf, size_t count, loff_t *ppos)


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Programming :: Package That Has To Configure With "make Menuconfig"?

Jan 19, 2011

I have a package that has to configure with "make menuconfig". I want to make this automatically. Usually I save the .config-File and replace the config with a skript, but the package I have to install has no .config. The manuall told me that I have to make the following steps:./configure --with-linux...makemake installIs it possible to use the saved .config-file?

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OpenSUSE :: Kernel Module / Building VirtualBox Guest Additions Kernel Modules - Failed?

Feb 10, 2010

I installed openSUSE 11.2 on virtualbox. My host is windows 7. I tried to install the guest additions, but i get an error saying

Building VirtualBox Guest Additions Kernel Modules...Failed
(Your system does not seem to be set up to build kernel modules)

How should i go about to let my system build kernel modules?

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Debian Configuration :: Nvidia Kernel Module With Custom Kernel

Jan 24, 2010

I have a problem with my custom kernel when I want to create the Nvidia kernel module.After this finished I installed the image and headers and created the Nvidia kernel module. Everything worked fine.However, if I remove the linux-source from my home directory then I can't create the kernel module.Even though I have the headers for the kernel installed.

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Ubuntu :: VirtualBox Kernel Module Breaks After Each Kernel Update?

Jan 6, 2010

I'm running Virtualbox from the Sun website (need the USB support) and it breaks after each kernel update.The problem is that I installed a lot of Ubuntu systems for transitioning windows users with Windows in virtualbox to ease the migration but I have to rerun vboxdrv setup after each kernel patch.

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