Hi, In my kernel module, I need to invoke a function repeatly but at different intervals. I tested two ways, one is add_timer()/del_timer() every time, the other is add_timer() once and only mod_timer() when needed. The first problem is that mod_timer() seems not work, my code is like this: add_timer(&timer); mod_timer(&timer, big-enough); // disable timer right now // when I need to invoke my routine after certain interval mod_timer(&timer, jiffies + interval_1); . . . // disable the timer in my routine by mod_timer(&timer, big-enough) . // when I need to invoke my routine again for a different interval mod_timer(&timer, jiffies + interval_2); Any comment is highly appreciated! One more thing, jiffies is 10ms resolution, can I have a ms resolution timer in the kernel? Any other alternatives can I use? Thank you very much for your help, Best, -Haijin -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
