[linux-dvb] Re: Full featured card summary

[Johannes Stezenbach <js@convergence.de>]

Andrew de Quincey wrote:
> 
> But why does it break DISEQC as well?

DiSEqC is implemented using a timer irq in the firmware.

And "hardware" section filters cause some ARM CPU load
(as do TS filters).

Of course, while tuning there is no signal and the load
should be zero. But some frontends just output garbage
instead of muting their output.

But it doesn't work right even when just testing with
dvb-apps/test/diseqc. I suspect the timings used in the
firmware are wrong, or the timer irq is not a reliable
way to implement this.

Johannes


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