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>From      : vdr-boun...@linuxtv.org
To          : "VDR Mailing List" vdr@linuxtv.org
Cc          : 
Date      : Wed, 22 Sep 2010 21:41:01 +0100
Subject : Re: [vdr] [PATCH] Add support for shared frondends cards

> On 21 Sep 2010, at 16:06, support.intranet wrote:
> > The attached patch (for VDR 1.7.16) implements support for multituner cards 
> > where only one tuner can be active at one time, the so called shared 
> > frontend cards (notably the HVR-4000 and its derivatives).
> > Currently VDR tries to open all the frontends on startup, with the result 
> > that the first frontend (usually DVB-S) works, but the second (usually 
> > DVB-T) fails with "Device or resource busy" error. The patch adds a new 
> > configuration option to setup.conf, called "OnDemand"; it defaults to 0 
> > (exactly the current behaviour). If set to 1, tuners will be appropriately 
> > opened and closed when switching channels. I've tested it with the vnsi 
> > plugin and XBMC.
> > I'd be happy if someone could review it and tell me if there is anything to 
> > correct and if it is possible to mainline it.
> > Alberto
> > <aod.diff>_______________________________________________
> > vdr mailing list
> > vdr@linuxtv.org
> > http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
> Ciao Alberto,
> Interesting work.  I live in the UK and have an HVR4000 for DVB-S.  
> Unfortunately DVB-T reception is poor where I live (hence the satellite 
> solution - additional multilnb to point at 28.2E and 13.0E for L'Eridita) so 
> I cannot fully test this past patching and compiling which I assume will work 
> as you state you have tested.
> Looking at the patch, there is something about inhibit epgscan.  I do not 
> know much about vdr internals.  Would patching vdr and enabling the ondemand 
> option stop epg from updating?  A slight negative if this is the case.
> Ian.
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Hi Ian, thanks for your answer. The problem with background epg scan is that it 
tries to access the device you are not using to watch/record as it thinks it is 
free, so if I don't disable it your favourite program would be stopped every 
few moments because the scan is taking place (and it closes down all other 
devices to access its one). I'm currently working on a better approach to this, 
so that if VDR is opened but you are not using it epg scan is allowed to work.

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