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Re: [Discuss-gnuradio] using ADC of a TV-card with CX2388x chip or digit

From: Martin Dvh
Subject: Re: [Discuss-gnuradio] using ADC of a TV-card with CX2388x chip or digital TV-reception chips/cards
Date: Tue, 25 Jan 2005 09:47:25 +0100
User-agent: Mozilla Thunderbird 0.9 (X11/20041124)

Hi all cx2388x owners.
I have modified the cx2388x video4linux driver to enable setting of a lot of 
registers by using insmod options

I will be writing a few testscripts with the right (guessed) values for 
different kinds of raw modes.

At the moment I am most curious if the hacked driver will load and capture at all and what the effect of the signle insmod option cap_raw_all=1 will do.

Martin Dvh wrote:
address@hidden wrote:

I've got the Leadtek card; it has a CX23882 chip. I run 2.6 and am
mildly familar with the driver.. I think my patch was the first one to
fix the tuner (typo in the tuner defs) and added it to the card
database. I haven't touched it much since, though. They've got the wrong
decimation values for NTSC but I didn't have my TV books handy and they
didn't believe me. (The VBI data lines are _outside_ the viewable area;
that's why there's a separate capture unit for them. address@hidden)

I am writing a small driver patch right now which changes the normal GREY capture format into a RAW_ALL format (I hope)
Maybe you (and others) can try it to see what comes out.


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