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

Klaus Schmidinger Klaus.Schmidinger at tvdr.de
Mon Apr 5 11:57:48 CEST 2010

On 05.04.2010 00:55, Teemu Rantanen wrote:
> Hi,
> There's a new version of the patch implemented as a plugin. It seems to
> work, but there are few things to notice:
> - Plugin does not cache which devices are Reddo devices, instead it
> probes sysfs every time QAM256 channel is being tuned into (on any
> device). It would be nice if cDeviceHook added a mechanism for a hook to
> store context for each device. Hooking into device probe (like full
> feature card plugin does) would be much nicer way, but it would
> interfere with other plugins which need the same mechanism.

The proper way of doing this is to check the modulation types
in cDvbDevice::ProvidesTransponder(), as in the attached patch (which will
be part of VDR 1.7.15). If the "reddo" driver doesn't set the FE_CAN_QAM_256
flag correctly, it needs to be fixed there.

> - VDR crashes at very late in exit() when clearing some list (most
> likely cDeviceHook list), but I couldn't find a way to avoid that

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