Thank you Roberto for the link: http://free-electrons.com/doc/embedded_linux_realtime/img25.html (the full link is here: http://free-electrons.com/doc/embedded_linux_realtime.pdf) Yes, but the link does not explain anything at all. Or perhaps my mind is not able to see the answer. Classic origin of story: http://lkml.org/lkml/1997/12/24/18 Triggering the event: http://lkml.org/lkml/2003/9/9/198 -- Regards, Peter Teoh -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ