Looking at the README for the cx25840 driver, it notes that "I need to send the 
following 4 bytes to I2C address 0x43 0x00,0x16,0x70,0x4a" in order to get the 
tuner to work.  With my NTSC PVR-500MCE I get the following in my dmesg output:

cx25840: *** I2C Write to no cx25840 device 0x43.

I'm assuming that the MCE (or maybe it's just the PVR-500) listen for this 
"magic" at a different address.  Does anyone know how that "magic" was derived 
and how I can get the corresponding info for my card?  Or, would it be 
potentially harmful to my card to go through all the possible addresses to send 
that data to?

* Jeff Williams <[EMAIL PROTECTED]> [2005-01-22 22:53:15]:
> Ok, I haven't seen anyone else comment on this, so I plunged into it. So
> far I've discovered (using the inf file on the install cd) that my card
> uses the Conexant Falcon 2 chipset (which is some sort of variant of the
> cx25840) I'm not postive, but I think it uses a different register set
> than the 'normal' pvr150 cx25840, because these aren't correct:
> 
> > cx25840: Status: 'Mono' (Detected audio mode)
> > cx25840: Status: 'Not defined' (Detected audio standard)
> > cx25840: Status: Video signal not present
> 
> While digging into the cx25840* files it appears that the register
> values are more-or-less autogenerated, so I was wondering what I need to
> do to come up with the correct register values and get those submitted
> as a patch. I am willing to do testing and additional work to get this
> card working, I just need some good directions to get started.
> 
> Jeff
> 
> 
> 
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