Re: [PATCHv7 0/9] FM Transmitter (si4713) and another changes

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On Tuesday 16 June 2009 12:47:14 Eduardo Valentin wrote:
> Hi Hans,
>
> On Sun, Jun 14, 2009 at 01:37:20PM +0200, ext Hans Verkuil wrote:

<snip>

> > I think the refactoring should be done first. I don't believe it is
> > that much work and experience shows that it is better to do this right
> > away while you are still motivated :-)
>
> hehehe.. Yes, that's what I was expecting :-). No problem. I've started
> it. I will resend the series once I've completed the re-factoring and I
> 've made some testing after that. I hope tomorrow or so.
>
> > The string control support should not go into 2.6.31. I would like to
> > do that only in the v4l-dvb tree (so it will appear in 2.6.32) since I
> > want to give that a bit more time to mature. I implemented it very
> > quickly and I do not feel comfortable queueing this for 2.6.31.
>
> Right. Yes, better to test the stuff a bit more.
>
> > In addition it is still unclear if Mauro will merge my v4l-dvb-subdev2
> > tree for 2.6.31. I hope so, since otherwise it will hamper the
> > development of this and other embedded platforms.
>
> Ok.
>
> > I also need to add a new V4L2_CAP_MODULATOR (which needs a review as
> > well).
> >
> > And finally I realized that we need to add some v4l2_modulator
> > capabilities for the RDS encoder similar to the upcoming v4l2_tuner RDS
> > capabilities as is described in this RFC:
> >
> > http://www.mail-archive.com/linux-media%40vger.kernel.org/msg02498.html
> >
> > I haven't had time to implement this RFC and I know that is not going
> > to make 2.6.31. It's now almost at the top of my TODO list, so it
> > should go in soon (pending unforeseen circumstances).
>
> Ok. I'll take a look at it.

I've worked on this yesterday. You can take a look at my v4l-dvb-rds tree. 
Both the API and the documentation of it in the v4l2-spec is in there. I 
started work on updating the few RDS decoders that we have, but that is not 
yet in that tree.

> > As a result of rereading this RFC I also started to wonder about
> > whether the si4713 supports the MMBS functionality. Do you know
> > anything about that?
>
> No. Not that I know. Can you point some link?

http://www.rds.org.uk/rdsfrdsrbds.html

But I've just read here:

http://www.rds.org.uk/rds98/pdf/rdsForum_standards_090414_8.pdf

that MMBS is discontinued. I'll need to investigate this further, but if 
this is indeed true then this can be removed completely from our RDS 
decoder and encoder APIs.

Regards,

	Hans



-- 
Hans Verkuil - video4linux developer - sponsored by TANDBERG Telecom
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