Messages in this thread | | | Date | Fri, 11 Apr 2008 18:58:36 +0200 | From | Rodolfo Giometti <> | Subject | Re: [PATCH 5/7] PPS: serial clients support. |
| |
On Fri, Apr 11, 2008 at 06:43:07PM +0400, Serge Belyshev wrote: > Rodolfo Giometti <giometti@enneenne.com> writes: > > > The problem is that deferencing the pps_event() call will cause severe > > problems to PPS accuracy... here you can find some considerations on > > this topic: > > > > http://ml.enneenne.com/pipermail/linuxpps/2008-April/001738.html > > > > What about adding precise timestamping to the lowest possible irq > handling level ( arch/*/entry*.S ) and then export that information > in a general way so it is useful for other applications?
The problem is that at such level you cannot easily retrieve info about where your serial port is connected to and which PPS source you should manage...
Ciao,
Rodolfo
--
GNU/Linux Solutions e-mail: giometti@enneenne.com Linux Device Driver giometti@linux.it Embedded Systems phone: +39 349 2432127 UNIX programming skype: rodolfo.giometti
| |