Sorry,
I thought his email came offlist, so I replied directly and not to list...
On 29/08/2018 7:58 AM, MLewis wrote:
This is just the kernel side to run Timemark Mode, the mode that had
the low jitter.
Plus bracketed timestamps. Analysis to be done in user space.
And with GPIO and on a Pi and similar with GPIO.
We'd have to identify what is required for adding other hardware, but
it can't be too hard, he says...
The coms with the ublox come from user space code.
I don't know what will happen when I substitute my driver with his
refclock code.
The coms with the setting up the ublox may have to be done with other
software. When other software does the coms for setup with ublox, why
maintain yet another piece of software doing that. Once the M8T is
setup, it just runs and runs. I last touched the settings on mine two
years ago?
Michael
On 29/08/2018 11:08 AM, MLewis wrote:
> Thanks for that tip.
>
>
> On 29/08/2018 8:05 AM, Udo van den Heuvel wrote:
>> Michael,
>>
>> On 29-08-18 13:58, MLewis wrote:
>>> This is just the kernel side to run Timemark Mode, the mode that
had the low jitter.
>>> Plus bracketed timestamps. Analysis to be done in user space.
>>> And with GPIO and on a Pi and similar with GPIO.
>>> We'd have to identify what is required for adding other hardware,
but it can't be too hard, he says...
>>
>> Please look at the PPS generator for LPT in the kernel code for an
example for x86/x86_64
>>
>> We need the ability to run on other hardware as well.
>>
>> Kind regards,
>> Udo
On 29/08/2018 2:48 PM, Gary E. Miller via devel wrote:
Yo Udo!
On Wed, 29 Aug 2018 11:04:22 +0200
Udo van den Heuvel via devel <devel@ntpsec.org> wrote:
On 29-08-18 09:37, MLewis via devel wrote:
As it's a LKM, anyone can mod it to their needs, load and run it,
without needing a system patch.
Would this be all kernel-side features we need to run the u-blox
refclock?
No kernel side features are need to run u-blox as a refclock.
KPPS helps a lot.
I suspect you meant is this all that is needed for Timemark mode?
RGDS
GARY
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