>> Also can anybody let me know what is the IRQ number of the mouse ? Doing cat /proc/interrupts may tell you. vijay -- Networks Lab, RPI http://poisson.ecse.rpi.edu/~vijay -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/