On Thu 13 September 2012 03:01:34 Laurent Pinchart wrote:
> Hi Hans,
>
> On Wednesday 05 September 2012 10:28:30 Hans Verkuil wrote:
> > On Wed 5 September 2012 10:04:41 Jun Nie wrote:
> > > Is there any summary for this summit or presentation material? I am
> > > looking forward for some idea on CEC. It is really complex in
> > > functionality.
> > > Maybe other guys is expecting simiar fruite from summit too.
> >
> > Yes, there will be a summit report. It's not quite finished yet, I think.
> >
> > With respect to CEC we had some useful discussions. It will have to be a
> > new class of device (/dev/cecX), so the userspace API will be separate from
> > drm or v4l.
>
> This is a repeat of a comment from the KS discussion: what about using the
> socket API instead of a device node ?
What benefit would that give me? I frankly don't think it maps that well to
a socket API. Some parts of the CEC protocol are more or less network like,
but others are point-to-point. Basically CEC is a mess, protocol-wise, and
I much prefer a char-device where you have more flexibility.
Regards,
Hans
> > And the kernel will have to take care of the core CEC protocol w.r.t.
> > control and discovery due to the HDMI 1.4a requirements.
> >
> > I plan on starting work on this within 1-2 weeks.
> >
> > My CEC presentation can be found here:
> >
> > http://hverkuil.home.xs4all.nl/presentations/v4l2-workshop-cec.odp
>
>
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