Achim Gratz writes:
> Feb 26 21:53:26 raspberrypi2 ntpd[20604]: refclock_params: kernel PLL
> (hardpps, RFC 1589) not implemented
> Feb 26 21:53:26 raspberrypi2 ntpd[20604]: NMEA(1) set PPSAPI params fails
> $ uname -a
> Linux raspberrypi2 4.4.49-v7+ #968 SMP Fri Feb 17 14:22:28 GMT 2017 armv7l
>
Yo Hal!
On Sun, 26 Feb 2017 17:05:04 -0800
Hal Murray wrote:
> g...@rellim.com said:
> > I thought we had killed it. If not it needs to be killed. It
> > should never be used.
>
> No.
>
> If nothing else, we need a way to test it to show that it is/isn't as
> good as other approaches.
No
g...@rellim.com said:
> I thought we had killed it. If not it needs to be killed. It should never
> be used.
No.
If nothing else, we need a way to test it to show that it is/isn't as good as
other approaches.
--
These are my opinions. I hate spam.
_
Yo Eric!
On Sun, 26 Feb 2017 17:08:15 -0500
"Eric S. Raymond" wrote:
> Gary E. Miller :
> > I thought we had killed it. If not it needs to be killed. It
> > should never be used.
>
> No, it's still here, if you mean hardpps amd RFC1589 support. Though
> I didn't know that until today - it'
Gary E. Miller :
> I thought we had killed it. If not it needs to be killed. It should never
> be used.
No, it's still here, if you mean hardpps amd RFC1589 support. Though
I didn't know that until today - it's amost completely undocumented,
you have notice the hint dropped by the meaning of fl
Gary E. Miller writes:
> Oh, that interface. NTP does not use that interface at all. If you are
> going to connect your PPS directly to the kernel then you do not use ntpd
> at all.
Yes it does, if you tell it to. But it won't on tickless kernels
whether you tell it or not since the kernel does
Achim Gratz writes:
> Yes. They should be functionally equivalent, yet still have different
> API.
I've looked, and indeed the hardpps function and the pps_kc_* functions
on Linux call the same implementation (__hardpps) in the end, so they're
functionally equivalent.
Regards,
Achim.
--
+<[Q+
Yo Fred!
On Sun, 26 Feb 2017 13:13:31 -0800 (PST)
Fred Wright wrote:
> > Oh, that interface. NTP does not use that interface at all. If
> > you are going to connect your PPS directly to the kernel then you
> > do not use ntpd at all.
>
> It can be enabled via some flags bits in ntp.conf (II
Yo Achim!
On Sun, 26 Feb 2017 22:12:59 +0100
Achim Gratz wrote:
> Gary E. Miller writes:
> > I do not see anything in that file I disagree with. Can you be more
> > specific on what you dislike in there?
>
> It shouldn't mention a kernel driver that doesn't exist anymore. PPS
> API is now a
On Sun, 26 Feb 2017, Gary E. Miller wrote:
> On Sun, 26 Feb 2017 12:42:37 -0800 (PST)
> Fred Wright wrote:
[...]
> > From drivers/pps/Kconfig:
> >
> > -
> > config NTP_PPS
[...]
> Oh, that interface. NTP does not use that interf
Gary E. Miller writes:
> I do not see anything in that file I disagree with. Can you be more
> specific on what you dislike in there?
It shouldn't mention a kernel driver that doesn't exist anymore. PPS
API is now available in mainline and that code is from the LinuxPPS
project.
>> It should pr
Yo Fred!
On Sun, 26 Feb 2017 12:42:37 -0800 (PST)
Fred Wright wrote:
> On Sun, 26 Feb 2017, Gary E. Miller wrote:
> > On Sun, 26 Feb 2017 14:29:59 +0100
> > Achim Gratz wrote:
> >
> > > It should probably be mentioned that hardpps is not available even
> > > with the PPS API present on most d
On Sun, 26 Feb 2017, Gary E. Miller wrote:
> On Sun, 26 Feb 2017 14:29:59 +0100
> Achim Gratz wrote:
>
> > It should probably be mentioned that hardpps is not available even
> > with the PPS API present on most distributions since it is
> > incompatible with a tickless kernel, something that bec
Yo Achim!
On Sun, 26 Feb 2017 14:29:59 +0100
Achim Gratz wrote:
> The kernel PPS documentation in docs/kernpps.txt still mentions
> PPSkit as the PPS API provider on Linux. PPSkit has not seen a
> release since 2007 and was replaced with the integration of LinuxPPS
> into the mai
Eric S. Raymond writes:
> I just grepped for hardpps and found a world of previously
> undocumented complications.
>
> By 'hardpps' do you mean the RFC1589 facility?
Yes, that's what the RFC1589 implementation is called on Linux, based on
the API function. That interface was created _after_ the R
Achim Gratz :
>
> The kernel PPS documentation in docs/kernpps.txt still mentions PPSkit as
> the PPS API provider on Linux. PPSkit has not seen a release since 2007
> and was replaced with the integration of LinuxPPS into the mainline
> kernel somewhere in 2009.
OK, I can delete
The kernel PPS documentation in docs/kernpps.txt still mentions PPSkit as
the PPS API provider on Linux. PPSkit has not seen a release since 2007
and was replaced with the integration of LinuxPPS into the mainline
kernel somewhere in 2009.
It should probably be mentioned that hardpps is not
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