1. AGC TOP of RF part - I think need support for MK3
2. Changing to 441MHz is not critical. We can write some information about this case to Wiki or docs.
for 2.: Discussed to the end if you stay at 441MHz. If you still want to
have it in, just send a patch and no more info is needed. (Likely Andy
is giving only examples for more difficult cases, sorry.)
for 1.: I would like to be absolutely sure, that we are talking about
the same tuner. I want to have the exact filters on it at least.
I
would
also
say
that,
if
we
need
to
implement
AGC
TOP
control,
it
would
be
better
to
add
it
at
struct
v4l2_tuner
(VIDIOC_G_TUNER
and
VIDIOC_S_TUNER),
instead
of
adding
it
as a
control.
3.: That is what Andy noted. Following the Philips datasheet for TOP, it
should be added for negative modulation, positive modulation and FM
accordingly. (2 and 3 are out of discussion)
If you still have some sort of Secam fire and can improve it, we must
know the tuner you are on "exactly". If it is the original Philips,
without any such TOP suggestions over the full range in recent
datasheets (???), I assume you might have them, I would say you can
proceed, if you have shown that you are really still on the same tuner.
Cheers,
Hermann
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