Re: Patch: tuner changes to support different I2C addresses for TV and Radio | |
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>Hi Mauro,
>
>there are also two variations of the saa7134 Compro gold+ II who need
>that. (tea5767 at 0xc0 and two different tuners (5,37) at 0xc6 with the
>same subsystem). Also ivtv supports the Hauppauge PVR 500 with two
>Philips MK4 tuners at 0xc2 and also tea5767 on 0xc0.
>http://marc.theaimsgroup.com/?l=linux-video&m=110970585303334&w=2
>
>Thanks,
>Hermann
>
>
>
Thanks, Hermann. I hope it could be usefull to improve support for
saa7134 too.
With this patch, for these cards with more than one TV tuner, it is
possible to address all of them, by sending the TUNER_SET_ADDR command
to the card every time you need to select a different tuner. By default,
all of them will be detected, and will be ready to use any time you
want. It is also easy to modify the patch to allow separate tuner
address for ANALOG_TV and DIGITAL_TV. In this case, it will change
automatically as you select V4L mode.
About the tea5767, do you have any idea how to program it by I2C?
Philips datasheet available on their site shows this ship without any
I2C (in fact, it shows a shift register that can be programable to
control the ship). I'm suspecting that ymec/tenna tuner uses a solution
like that (the formula for divider is very different than MK3).
>
>
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