[vdr] Restricting a particular dvb card from tuning to channels with a selected modulation

Klaus Schmidinger Klaus.Schmidinger at tvdr.de
Tue Apr 6 18:10:23 CEST 2010


On 06.04.2010 14:07, Teemu Rantanen wrote:
> Hi,
> 
> the right way, of course, is to fix the driver, and make vdr check what
> device can do. I'm glad Petri had time to test it, and I hope to see the
> patch in next version of vdr. But I couldn't use the driver patch even
> if I wanted to patch kernel myself, as I actually have 3 devices with
> TDA10023 frontend, and only one of them is "reddo" :-)

Well, as I said, then the driver needs to detect which one is the "reddo"
and only clear the FE_CAN_QAM256 for that particular one.

> But i'm afraid my time for this project just run out. I'll continue
> later if/when the reddo driver patch arrives, I will test it, but until
> then I'll have to manage with the plugin, even if it crashes or not at
> exit(). I'll make an empty plugin with an empty hook, and if it still
> crashes at exit() it's not my fault :-)

I'll be glad to apply any fix to the core VDR code you can come up with.

> One more thought. Would it be possible to add vendor/product id as a
> method for cDevice (as well as the utility method for filename->id). And

First of all somebody should clarify the names.
Is it idVendor or subsystem_vendor?

> would it be possible (for a plugin) to manage device feature list and
> remove QAM256 from the reddo device. This way the plugin wouldn't have
> to actually do anything anymore when vdr is running, only fix this one
> time at plugin startup, and everything else would work 100% the same way
> before/after the driver is changed.

With a properly working driver you won't even need this at all ;-)

> Even though this isn't the right
> way, but we aren't living in a perfect world :-)

I'm afraid that would only take the pressure off of fixing the driver.

> 2010/4/5 Klaus Schmidinger <Klaus.Schmidinger at tvdr.de
> <mailto:Klaus.Schmidinger at tvdr.de>>
> 
> 
>     Well, then the driver needs to make a finer distinction and *properly*
>     set FE_CAN_QAM256.
> 
> 
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