Hai,

Am using slackware,fedora. In both cases , there are two dirs,

1. /usr/src/linux-{Kernerl version}/
2. /lib/modules/{kernel-version}/

what is the difference b/w these two? Actually , these two dir content are totally different, I agree. But, which one is the Kernel source ? :huh:

For writing device drivers, I am using the second one. But, actually, the first one only is in "src" dir .

I am not sure , this question is meaningfull or not, may this is so naive. But , want to know the difference. thank you

got it. thank you fillpot. :-)

thanks Marc and atreyu .

@ atreyu : " In this directory is a directory named "source" which is actuall a symbolic link to "build" in the same dir and "build" is actually a symbolic link to the above kernel source dir (/usr/src/kernels/{kernel_version}/). "

Having a Kernel Source is optinal[ I guess]. If that is true, If I dont have kernel source, where these symlinks in lib/modules points to?
And, as Matt told, if we change modules[load/unload], those changes will be in "lib/modules" ,If they are symlinks, will it affect[it has to, I think], the ORIGINAL Kernel source ?