"sleek daelite" wrote in message
news:2cba4d150608100217t2f7c1f64jdf7fb5c37bf3363b@ mail.gmail.com...
> Hi all,
>
> Does anyone know where i can get a pps kernel patch for kernel 2.6.16-2.
> I've version for 2.6.15-1, but i don't think it will work for me and in
> fact
> i've seen it somewhere it stated that it was buggy and it would be
> incompatitable for me.
>
> Cheers,
> Sleek
> _______________________________________________
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> questions@lists.ntp.isc.org
> https://lists.ntp.isc.org/mailman/listinfo/questions
>
Hi,
I used the ppskit-light 2.6.15-1 patch on my 2.6.16 kernel, I had to
manually edit in a couple of rejects but it's then compiled and working
fine.

You may also need to build NTP from source, if so there are a couple of
header files that need copying in or PPS does not actually work..
I can't remember what they are but I mentioned them in an older post after
getting my setup working.

I'm using a GPS25 module, my setup for it in ntp.conf is:

# NMEA Clock using Garmin GPS
server 127.127.20.0 mode 1 version 4 prefer
fudge 127.127.20.0 refid PPS flag2 1 flag3 1 time1 0.000 stratum 1

I also have a couple of local servers and pool servers configured to give
NTP it's majority decision capability.

You don't need a separate PPS device, it's built in to the NMEA refclock.

You may need a symlink from the appropriate tty to pps0 and gps0
I'm using Centos 4.3 which uses udev, I added these lines at the end of
/etc/udev/rules.d/50-udev.rules

# Add symlinks for NTP service
KERNEL="ttyS0" SYMLINK="pps0"
KERNEL="ttyS0" SYMLINK="gps0"


Robert Jenkins.

sleekstar@gmail.com (sleek daelite) writes:

> Hi all,
>
> Does anyone know where i can get a pps kernel patch for kernel 2.6.16-2.

I've uploaded:
PPSkit-light-alpha-3932m-2.6.17.8.diff.gz
PPSkit-2.1.7.tar.gz

The latter is just a convenience "extended maintenance release" for Linux 2.4
kernels. There's only one minor change that could affect stability in a
positive way, but I haven't tried myself.

If I were from marketing I'd say you'll get better performance as well, but
who cares about a tousand cycles every minute? ;-)

Enjoy,
Ulrich

> I've version for 2.6.15-1, but i don't think it will work for me and in fact
> i've seen it somewhere it stated that it was buggy and it would be
> incompatitable for me.

The weather was too nice to spend evenings in front of a computer! ;-)

Regards,
Ulrich