kernel module loading

[mallik]

hai,
iam new to kernel programming and iam very interested to learn this..


iam using linux fedora core -2 , (kernel 2.6)

i wrote a small hello world prog module and iam trying to insert the module

iam getting the error related to printk function while compilation..

can anybody help me in this regard/ atleast give some details where i can found the required material for how to means procedure steps from starting to loading the module into the kernel.

Thanx in Advance

[Franklin52]

What errors? On what line?

Regards

[mallik]

while iam compiling the program ,iam getting the error called "implicit declaration of printk"..

In my system
1.Linux Fedora care -2
Kernel 2.6
arch-i386

Can u tell me why it gives that error and also give some material where i can found the procedure steps to follow to build the module and insertion

Pls help me..

[Franklin52]

Here's a kernel modules programming guide:

http://tldp.org/LDP/lkmpg/2.6/html/index.html

Regards

[mallik]

thanx sir,

i got some information thru ur given material, but when iam doing practicle like loading a module iam getting some errors.

when iam using some commands like ( modinfo, insmod,lsmod) at my shell.
it shows me command was not found. why it is like that.

Is there any problem while i was installing the linux , leaving some features.

if so, pls give me some hints to do.....

Once again thanx..

[devils casper]

when iam using some commands like ( modinfo, insmod,lsmod) at my shell.
it shows me command was not found. why it is like that.

you must be 'root' to execute these commands. type 'su -' in shell to get 'root' privileges.




casper

[mallik]

hai everybody,

Even i tried at /sbin path also, (lsmod, modinfo,ismod) these commands are not working..

with super user privilizes also , these r not working..

Can anybody help me..

[devils casper]

type 'mod' in terminal and hit 'Tab' key twice. does it show 'modinfo' command in list? check other commands too. in case, it doesn't show commands, install module utilities.




casper

[Franklin52]

You must install modutils.

Regards

[Franklin52]

in case, it doesn't show commands, install module utilities.

Sorry devils_casper, I need new glasses

Regards