[linux-dvb] [PATCH] Moving ALPS BSRV2 tuner handling code to
perceval.anichini at streamvision.fr
Sun Apr 16 13:59:34 CEST 2006
> bsrv2, bs* are all tuners from Alps , not demodulators, AFAIK. The
> tuners don't do the DiSEqC but only a dedicated chip.
> for example, on the Galaxis rev 1.3 FF card that i have, a LNBP13 is
> used for dedicated control.
> for DiSEqC.
Oh yes, you're right, I messed up lnbp21 and bsbe1 :/
> The LNBP chip is never inside the tinbox itself.In some budget cases,
> the demod can be made to do DiSEqC also without a dedicated chip (It can
> be from other vendors as well). In this case, it is the demod which does
> the DiSEqC, even in this case it is discrete electronic components that
> do DiSEqC instead of the dedicated chip.
> The term frontend, comes from the term RF frontend, which refers to the
> "tinbox". In many cases the tuner/frontend (tinbox) integrates the
> demod, while in some cases demodulators are outside the tuner (tinbox)
Well, that's why I think 'tuner-' is indeed a quite
reductive prefix ...
Maybe we shall have a single file by _chip_ then ???
For instance :
And then a frontend is the sum of a lnbp chip, a demod, a tuner :
exactly as in the DVB API documentation... ?
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