[linux-dvb] dvb trouble with the pinnacle 300i (mt352)

Alexander Macdonald lists at alexmac.cc
Thu Apr 21 23:12:35 CEST 2005


Gerd Knorr wrote:
> Rainer Schubert <lintv at dl6hbo.inka.de> writes:
> 
> 
>>>mt352_read_register: readreg error (reg=1, ret==-5)
> 
> 
>>>Is this a problem that people are trying to fix or have I just bought a
>>>crap card? I got the pinnacle to replace my Nova-T (which could receive
>>>channels just fine) because it has analog as well.
> 
> 
> Well, read access to the status registers seems to make the mt352
> unhappy.  It's not clear why this happens on that card.  According to
> pinnacle the IRQ line of the mt352 is connected to GPIO pin #23 on the
> saa7134.  So it should be possible to stop polling the status
> registers and switch to a IRQ-driven handling.
> 
>   Gerd
> 

What I'd really like to know is are these readreg errors to blame for
all the artifacts in the picture? As I said in my post, my Nova-T can
receive most of the channels perfectly without a single artifact so my
signal must be good enough for a decent dvb card to handle.

Apart from that, thanks to all of you for writing the drivers! I've no
idea how you even begin to make one so I'm very grateful.

Thanks,
Alex




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