[linux-dvb] Re: Full featured card summary

[Andrew de Quincey <adq_dvb@lidskialf.net>]

On Saturday 20 March 2004 21:15, Johannes Stezenbach wrote:
> Andrew de Quincey wrote:
> > > > Cool. The Root/Dpram in your 2003-11-08 DVB snapshot is the same as
> > > > the ones I extracted from dvb-ttpci-01.fw.gz currently on the
> > > > website. So its definitely not that; I just wanted to make ABSOLUTELY
> > > > sure it wasn't some build issue. I'm assuming your 2003-11-08
> > > > snapshot works for your DISEQC BTW.
> > >
> > > Yes, it does.
> >
> > Another difference (though I don't see how it can affect DISEQC, but you
> > never know!):
> >
> > In 1.0.0 and your 2003-11-08 snapsnot, hw_sections = 0 by default
> >
> > In 1.1.0 and CVS, hw_sections = 1 by default
>
> Argh!
>
> It should be hw_sections=0 by default to enable crc checks. But it
> seems Holger made this change only for DVB :-(
>
> Well, ideally the crc check should be in the firmware, but I won't
> touch that. What should be done is to add the crc check to the
> av7110 driver so it works with hw_sections=1, but no one had time
> to implement this. So, hw_sections=0 is the workaround to enable
> crc checks (the software demux does it).

Yeah, that makes sense; you'd want sections CRC checked. 

But why does it break DISEQC as well?


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