[LinuxPPS] PPS driver for ISA bus

Rodolfo Giometti giometti at enneenne.com
Wed Oct 24 08:58:32 CEST 2007


On Wed, Oct 24, 2007 at 01:21:22PM +1000, Cirilo Bernardo wrote:
>     Is there any value in writing a PPS driver for ISA bus interrupts?  I
>    happen to have a piece of hardware that does this and it would be trivial
>    to implement such a driver (since Rodolfo has already done all the hard
>    work).
> 
>     I imagine 2 such drivers - one which works with any generic ISA
>    interrupt, and this may be useful when connected to a timing standard.  It
>    won't quite work with my hardware because the PPS is meaningless until
>    locked to a GPS signal.  For my hardware I can easily implement a
>    specialized driver which will only generate PPS events when there is a GPS
>    lock.  Thanks to other discussions on this list, it is also possible for
>    me to design the specialized driver to plug into gpsd.
> 
>     I think this would slowly help build up PPS drivers in addition to the
>    current serial DCD driver.
> 
>     Any comments?

No, even if I don't understand exactly what you need. :)

Please, feel free to submit your patches.

Ciao,

Rodolfo

-- 

GNU/Linux Solutions                  e-mail:    giometti at enneenne.com
Linux Device Driver                             giometti at gnudd.com
Embedded Systems                     		giometti at linux.it
UNIX programming                     phone:     +39 349 2432127



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