Hi everybody,

I have created a c program which will insert a module in kernel. I converted this program into a service so that when I start it, it should insert the module in kernel & vice versa.

By default the service takes this module from root( / ) for insertion. But when I put this module in my home directory(say /home/sharad), the service is unable to find the module (It will search it in / only).

So how to load the module in kernel from my home directory using a service?

I would appreciate if u could answer my query.

Thanks & regards,

sharad.

When you say that the program is a "service", do you mean it's running as a daemon? How does the user communicate with the daemon? Whatever communication method you use, why don't you just allow the user to specify the full path to whatever module that they want to load?

btmiller

While we're on the topic, issuing command: depmod -a, will that only apply to the /lib/modules directory or modules system wide, as modules with udev have .ko extension.

Yes, the service is running as a daemon. From the C code I am invoking a system() function as follows.

e.g,
system("insmod module.ko");

Also I tried with the absolute path, but it is not working.

Please help me if you have any solution for it.

Thanks & Regards,

Sharad.

Junior Hacker: According to the man page for depmod on my system it only looks at modules in /lib/modules`uname -r` but you can give it other directories with the -b option.

sharad: I've used insmod with the full path before with no problem, and AFAIK it should work. Are you sure you passed it the correct path? Maybe there was some other problem inserting the module -- e.g. a missing symbol or somesuch (just guessing here). Can you post the exact error message you're getting?

Well
I feel kind of like a fool here, that was a question for both of us but I ended up forcing you to read up on it. But we both gained some knowledge I guess.

Sorry...and Thanks.