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Typhoon DVB-T Duo Cardbus tuning problems



Hi, Andreas

Andreas Deresch wrote:
This is normal, the module has an enormous power consumption if its
fully active.

What I was trying to say is that it only does so (to this extent) when not working.

AFAICT this is due to the call to set_tvnorm(dev,&tvnorms[0]) in
saa7134_video_init2. AFAIK the tda8290 is in fact the analog tuner on duo
cards!? I don't see any other differences, though.


These messages are normal. The TDA8290 actually is the IF chip for analog TV.

As you can see above I was aware of that (although not absolutely sure), yet
I had not been able to spot another difference (but see below).


I must say i never tried to  remove and reinsert the card with the driver
loaded. So..

Well, Cardbus -> Laptop -> Suspend. Sounds like someone else might try this too? ;-)

In your experiment, did you also unload all other modules?

Before I noticed that unloading tuner is sufficient: yes.

Can you please repeat your experiment with the debug=1 option to saa7134?

Attached. (tuner: debug=1; saa7134: core_debug=1)

Does the driver report "hwinit1" in both cases?

Yes.
The only thing I see is that in case of failure the tuner seems to have been
initialized before hwinit2 was called.


ad

I noticed 2 additional things from your logs
1) In both cases, the firmware was loaded successfully. This somehow
   doesn't fit to what you posted before...
2) You have a recent firmware which is not the original one. That's good
   but you must have gotten it with the windows driver update and it must
   have updated it..
Anyway, i couldn't reproduce the problem yet. When i looked at the driver,
i found that there is no code that controls the address mapping of the
firmware eeprom. I will add it and send you a patch. Maybe this does it.

Hartmut

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