PPS kernel patch for kernel 2.6.16-2 - NTP

This is a discussion on PPS kernel patch for kernel 2.6.16-2 - NTP ; 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 ...

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Thread: PPS kernel patch for kernel 2.6.16-2

  1. PPS kernel patch for kernel 2.6.16-2

    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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  2. Re: PPS kernel patch for kernel 2.6.16-2


    "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
    > _______________________________________________
    > questions mailing list
    > 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.



  3. Re: PPS kernel patch for kernel 2.6.16-2

    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

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