Hi kristof, when i executed the below line. i din't get what i suppose to get...the message "hello, world".. did i miss any steps sunil@ubuntu:~/test/drive$ sudo insmod helloworld.ko On Mon, Feb 11, 2013 at 4:34 PM, Kristof Provost <kristof@xxxxxxxxxx> wrote: > On 2013-02-11 16:24:17 (+0530), sunil <sunil.slvphsn@xxxxxxxxx> wrote: >> Have a look at this: >> >> donno wats happening: >> >> sunil@ubuntu:~/test/drive$ sudo rmmod helloworld >> sunil@ubuntu:~/test/drive$ lsmod|grep hellow* >> Binary file helloworld.ko matches >> Binary file helloworld.o matches > > This doesn't actually do what you seem to think it does. > You're not passing the 'hellow*' argument to grep. The 'hellow*' is > first expaned by your shell, so it probably turns that command line into > 'lsmod | grep helloworld.c helloworld.o helloworld.ko'. > Try using 'lsmod | grep hellow' instead (i.e. without the *). > >> sunil@ubuntu:~/test/drive$ modprobe -r helloworld >> FATAL: Module helloworld not found. > > Obviously, because your previous command succeeded. The module is no > longer loaded. > > Regards, > Kristof > > PS: Please don't top-post. > PS 2: Please keep the mailing list in cc. > -- Regards, Sunil A S _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
