[LinuxPPS] PPS next steps...

[Bernhard Schiffner]

On Thursday 19 February 2009 18:54:10 Rodolfo Giometti wrote:
> On Thu, Feb 19, 2009 at 12:47:50PM -0500, George Spelvin wrote:
> > Rodolfo Giometti <giometti at enneenne.com> wrote:
> > > Can you please ask to Andrew Morton and Alan Cox what they think about
> > > this issue? I agree with them. ;)
> >
> > Er... why should they care about the format of data from /dev/pps0?
> > I asked Alan about serial driver stuff because he had expressed an
> > interest.  I don't think he cares about this detail.
>
> Please, don't consider me paranoic :D but each time I tried to add a
> new features I got objections to inclusion!
>
> LinuxPPS interface seems quite accepted by everyone and changing it
> again just right now may get some NACKs... that's why I asked to you
> to ask to them before doing it.
>
> OTOH, if you are sure that what you are doing is so correct that
> nobody may object anything, it's ok for me too.
>
> Ciao,
>
> Rodolfo

Rodolfo,

I think you speak about features like ldisc, where you got opinions back and 
forth because these were hot topics for others.

1.) Real readout of a /dev/xyz is standard unix behavior.
Do you know about other devices, returning -EN... on read() ?

2.) It's not prohibited by RFC, something or someone else.

3.) Your Software is not limited to PPS.
For PPS you have ntp to coop with (and you do fine).
For others it is far easier to have a readable /dev/pps*.

4.) Last, (not least :-) ) George and me like it to have.

5.) Perhaps it is good to ask John Stultz for advise.
There may be something (interface, format ...?) clock-related, which is better 
know before.
Should I ask him?

Bernhard