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    SubjectRe: [PATCH 1/1] LinuxPPS: Pulse per Second support for Linux
    On Wed, Feb 21, 2007 at 08:14:14AM -0800, H. Peter Anvin wrote:
    > If you have a kernel driver at all, then it makes perfect sense. If you
    > don't have a kernel driver at all, then it's irrelevant to the
    > linux-kernel discussion.


    So you are told me that if my PPS source is connected with a single
    CPU GPIO I have to add a new driver to the kernel? I have to choose a
    proper major/minor numbers for just one PIN? =:-o

    > >RFC simply doesn't consider the fact that you can have a PPS source
    > >__without__ a filedes connected with, and a single filedes is
    > >considered __always__ connected with a single PPS source.
    > That's the Unix way.

    But not PPS one. In several embedded systems the GPS antenna is
    connected with the serial port and the PPS source, which cames from
    the __same__ GPS antenna, is connected with a GPIO.

    How I should manage such case? Which fildes I should use? Also
    consider that NTPD currently manage only one filedes which should
    support both GPS antenna's data and PPS source. My patch can solve
    this problem.




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