On Tue, 1 Mar 2005 11:29:07 -0800, Sanjay <hegdesan@xxxxxxxxxxxxxx> wrote: > Hi, > > When I try to add the function in dev.c and compile, I get the message > saying undefined reference to `driver_control'. Am I missing something > here?. Looks like liking is not happening properly. Should I add any header > files in dev.c? > > Thanks/Sanjay > Make sure that the driver_control symbol has been exported. cat /proc/ksyms | grep driver_control Also add 'extern driver_control' in your code. This tells the comiler that this symbol is defined elsewhere and thus should be resolved when loading the module. Hope this helps :) -Shri -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/