Re: Issue while unloading modules via modprobe

On Tue, Dec 3, 2013 at 2:17 PM, Mandeep Sandhu <mandeepsandhu.chd@gmail.com>wrote:

...

error = system("modprobe -rv A");

This returns an error = 256.

Hi Mandeep,

thanks for your mail What does 'perror' show (if anything) ?

Also, if you try the same via a shel, whats the return value ('echo $?') printed?

echo $? show 1 (EPERM? most probably, operation not permitted for common

module).

BTW, why are you using the '-v' option when invoking modprobe programatically?

yes, -v option can be removed (behaviour is same even after removing -v option)

-mandeep

Thanks, Chetan Nanda