Re: dvb: one demux per tuner or one demux per demod?

[Steve Kerrison <steve@stevekerrison.com>]

Hi Rémi,

The cxd2820r supports DVB-T/T2 and also DVB-C. As such antti coded up a
multiple front end (MFE) implementation for em28xx then attaches the
cxd2820r in both modes.

I believe you can only use one frontend at once per adapter (this is
certainly enforced in the cxd2820r module), so I don't see how it would
cause a problem for mappings. I think a dual tuner device would register
itself as two adapters, wouldn't it?

But I'm new at this, so forgive me if I've overlooked something or
misunderstood the issue you've raised.

Regards,
-- 
Steve Kerrison MEng Hons.
http://www.stevekerrison.com/ 

On Tue, 2011-05-24 at 12:55 +0200, Rémi Denis-Courmont wrote:
> Hello,
> 
> Been testing the bleeding-edge Hauppauge 290E (em28174 + Sony cxd2820r)
> from Antti Palosaari and Steve Kerrison, now in linux-media GIT tree.
> 
> It seems the device creates two frontends and only one demux/dvr nodes.
> Are they not supposed to be one demux per frontend? Or how is user-space
> supposed to map the demux/dvr and the frontend, on a multi-proto card? on a
> multi-tuner card?
> 
> Best regards,
>