Export functions in kernel module to user Programs

 
Thread Tools Search this Thread
Operating Systems Linux Red Hat Export functions in kernel module to user Programs
# 1  
Old 10-28-2009
Export functions in kernel module to user Programs

Hi all,

I just started working on kernel modules. One query i'm not able to resolve how i can use call any of my function(take example testfunc() ) defined in my loadable kernel module (take example : test.ko)
I want to export kernel module functions to user programs.

Consider i have insmoded test.ko, now i'm writing any program on my linux machine and i want to use or call testfunc() in my program in userspace, and i don't want to call testfunc() at loading of test.ko (because there is way of calling it from init_module()), i want to call it from my program afterwards then how i should do this or is it possible or not?

Please guide. Waiting for response.

Thanks and Regards,
Tarun
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Difference between inbuilt suid programs and user defined root suid programs under bash shell?

Hey guys, Suppose i run passwd via bash shell. It is a suid program, which temporarily runs as root(owner) and modifies the user entries. However, when i write a C file and give 4755 permission and root ownership to the 'a.out' file , it doesn't run as root in bash shell. I verified this by... (2 Replies)
Discussion started by: syncmaster
2 Replies

2. Linux

Unload kernel module at boot time (Debian Wheezy 7.2, 3.2.0-4-686-pae kernel)

Hi everyone, I am trying to prevent the ehci_hcd kernel module to load at boot time. Here's what I've tried so far: 1) Add the following line to /etc/modprobe.d/blacklist.conf (as suggested here): 2) Blacklisted the module by adding the following string to 3) Tried to blacklist the module... (0 Replies)
Discussion started by: gacanepa
0 Replies

3. Ubuntu

How to run kernel functions in a separate core?

Hello Friends, I am using Ubundu. I want to know how to run kernel functions in a separate core? I know about Taskset and it supports only for the application. Do anybody know any command (or) have any idea about how to do it? Please help me Thank you (3 Replies)
Discussion started by: reksss
3 Replies

4. Programming

can a linux kernel module call libc functions?

can a linux kernel module call libc functions, such as printf(), strcpy(), etc...? (9 Replies)
Discussion started by: vistastar
9 Replies

5. IP Networking

kernel module

Hi All, I need to develop a kernel module which changes the IP address of a package according to its mac address. It would be a sort of L2 Nat. Somebody know if I can do this using netfilter?? Thanks. (2 Replies)
Discussion started by: lagigliaivan
2 Replies

6. Linux

How to convert Linux Kernel built-in module into a loadable module

Hi all, I am working on USB data monitoring on Fedora Core 9. Kernel 2.6.25 has a built-in module (the one that isn't loadable, but compiles and links statically with the kernel during compilation) to snoop USB data. It is in <kernel_source_code>/drivers/usb/mon/. I need to know if I can... (0 Replies)
Discussion started by: anitemp
0 Replies

7. UNIX for Advanced & Expert Users

kernel functions issue!

Hello All, I'm new to linux programming and this is my first post.I am porting ethernet driver from Linux2.4 to Linux2.6 for Xscale, after modifications I am able to install the driver. Now when i assign the address to my device using ifconfig, kenerl is going to panic. Stack trace is showing... (0 Replies)
Discussion started by: vineykr
0 Replies

8. Linux

kernel functions issue!

Hello All, I'm new to linux programming and this is my first post.I am porting ethernet driver from Linux2.4 to Linux2.6 for Xscale, after modifications I am able to install the driver. Now when i assign the address to my device using ifconfig, kenerl is going to panic. Stack trace is showing... (0 Replies)
Discussion started by: vineykr
0 Replies

9. SuSE

max number of slabs per kernel module (kernel 2.6.17, suse)

Hi All, Is there a max number of slabs that can be used per kernel module? I'm having a tough time finding out that kind of information, but the array 'node_zonelists' (mmzone.h) has a size of 5. I just want to avoid buffer overruns and other bad stuff. Cheers, Brendan (4 Replies)
Discussion started by: Brendan Kennedy
4 Replies

10. Programming

call functions from diferents programs

hi i have ten program in C, and there are functions what are in all the programs. so, i want to make a directory to store all the functions what are in all the programs, and call them from the C programs. (sending variables and values) is that possible?? how ca i do that?? any idea,... (1 Reply)
Discussion started by: DebianJ
1 Replies
Login or Register to Ask a Question
fctl(7D)                                                              Devices                                                             fctl(7D)

NAME
fctl - Sun Fibre Channel transport library DESCRIPTION
The fctl kernel module interfaces the Sun Fibre Channel upper layer protocol (ULP) mapping modules with Sun Fibre Channel adapter (FCA) drivers. There are no user-configurable options for this module. FILES
/kernel/misc/fctl 32-bit ELF kernel module (x86) /kernel/misc/amd64/fctl 64-bit ELF kernel module (x86) /kernel/misc/sparcv9/fctl 64-bit ELF kernel module (SPARC) ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Architecture |SPARC | +-----------------------------+-----------------------------+ |Interface stability |Unknown | +-----------------------------+-----------------------------+ |Availability |SUNWfctl | +-----------------------------+-----------------------------+ SEE ALSO
fp(7D) SunOS 5.10 20 Oct 2004 fctl(7D)