Hi, Can someone tell me how can I know that which different applications are using my driver indirectly and/or directly ( via opening dev files)? lsmod shows the count "Used". Every driver writer will increment the count in the open() call. How can I know that who is using the module? lsmod shows the modules which are dependent on it but not the applications/processes. If we can get the process id which are using it, than also it is fine. Regards, Parav Pandit __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/