[LinuxPPS] kernel does not see PPS on serial port

[LICHTENBERGER Janos]

>
>
> 3 years ago?  That will probably not be Rodolfo's new RFC-compliant
> Linux_PPS.
>

The 'Copyright' in pps.c is of Rodolfo

But I couldn't find the source of jupiter patch. I attach it for two
reasons: someone can use it with the old kernel or you may recognize the
author.


> We need to determine if the problem is with NTPD or earlier.  While
> 'cat /dev/ttyS0 &'  (or whatever ttyS* your GPS is on) is running,
> check the sysfs interface to see if pps_core has created the pps0
> device and is recording new events.  If it is, then the problem is
> with the NTPD refclock drivers.  If pps_core is not seeing events,
> then something may be disabling your UART modem control lines. (Are
> there any serial port configuration experts here?)
>

I did the experiment, pps0 was created and both assert and clean saw
events. Thus the conclusion is the same as before, refclock driver is
wrong.


Ciao,

Janos

>

-- 
-- 
Dr. János Lichtenberger
Space Research Group,
Eötvös University,
Budapest, Pf 32 H-1518 Hungary
Tel: +36-1-372 2934
Fax: +36-1-372 2927