hi its Suresh Potluri. i recently joined this group. Its my first posting. i have created one pseudo driver. two processes are accessing the device associated with the driver. two processes can access read & open entry points. In driver Read/Write Functions, i want to know on behalf of which process the driver read/write function is executing. any help is gratefully . thanks in advance regards -potluri +++++++++++++++++++++++++++++++ Disclaimer +++++++++++++++++++++++++++++++++++++++ This e-mail may contain privileged and confidential information and is intended only for the use of the specific individual(s) to whom it is addressed. If you are not an intended recipient of this e-mail, you are hereby notified that any unauthorized use, dissemination or copying of this e-mail or the information contained in it or attached to it is strictly prohibited. If you have received this e-mail in error, please delete it and immediately notify the undersigned by reply e-mail. Hellosoft India Pvt. Ltd. www.hellosoft.com +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/