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- To: "chrony-users@xxxxxxxxxxxxxxxxxxxx" <chrony-users@xxxxxxxxxxxxxxxxxxxx>
- Subject: Re: [chrony-users] Using radio time signal for syncronization
- From: Sviatoslav Feshchenko <sviatoslav.feshchenko@xxxxxxxxx>
- Date: Wed, 08 Jan 2025 13:07:41 +0000
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Thank you Miroslav. I haven’t tried the alsa-oss package yet. Admittedly I much prefer using Chrony over ntpd :)
I will let you know if and when I have a good application. It may take a long while!
Sviatoslav
On Wed, Jan 8, 2025 at 03:21, Miroslav Lichvar <[mlichvar@xxxxxxxxxx](mailto:On Wed, Jan 8, 2025 at 03:21, Miroslav Lichvar <<a href=)> wrote:
> On Tue, Jan 07, 2025 at 02:49:52PM +0000, Sviatoslav Feshchenko wrote:
>> I might take Miroslav's suggestion and port the ntpd audio code.
>> This would be a hobby project, so I am not looking for the easiest
>> porting solution. I would also want the code to last and be relevant
>> for the longest amount of time possible, so I would probably write
>> directly for ALSA rather than pipewire, to minimize the risk of
>> obsolescence. I wouldn't use the SOCK wrapper ntp-refclock in this
>> case either, and instead write a standalone application (somewhat
>> along the lines of gpsd), which would provide the SOCK connection.
>> What are your thoughts on this approach?
>
> That sounds like a lot of work, but of course it's your time :). I'd
> just submit a patch adding support for alsa to the ntp project.
> Looking at the ./libntp/audio.c file, it shouldn't be that difficult.
>
> alsa provides an alsa-oss package providing some OSS compatibility.
> You could start ntpd/ntp-refclock with the aoss utility. Have you
> tried that?
>
>> If I am ever successful and
>> it works well, would Miroslav be willing to include a blurb about
>> the existence of this application in chrony documentation for
>> chrony.conf SOCK driver, which currently only mentions gpsd as one
>> application that supports the SOCK protocol?
>
> I'd certainly add it to the "Useful links" page on the chrony website.
>
> --
> Miroslav Lichvar
>
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