[linux-dvb] Re: Full featured card summary

[Oliver Endriss <o.endriss@gmx.de>]

On Saturday 20 March 2004 23:07, Johannes Stezenbach wrote:
> Andrew de Quincey wrote:
> > 
> > But why does it break DISEQC as well?
> 
> DiSEqC is implemented using a timer irq in the firmware.

Well, this will work only if there is no other interrupt load.
Otherwise the timer interrupt processing might be delayed and
timing is off.

> 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.

Hmm, why should the load be zero if you are switching from one channel
to another one? In this case there is a valid signal.

Oliver


-- 
Info:
To unsubscribe send a mail to ecartis@linuxtv.org with "unsubscribe linux-dvb" as subject.