hello all.

i study http://lwn.net/Articles/223185/. that is about clockevents in linux and

 

i find it is for get capability of use timers in system in global way.

 

then  in "rt_request_apic_timers"  used  "rtai_request_tickdev".

 

my question is that why use this function when we use apic timer self and

manualy program it .

 

thnaks very.