Hi,
Since the driver doesn't allow to create only the frontend of the desired delivery type, here's a patch for cDvbDevice. If there's no demux/dvr device with the frontend number it looks for one with a lower number. Now it's possible to use "-D 0" for DVB-C or "-D 1" for DVB-T (change device numbers to your setup).
Of course the dynamite-plugin can also be used. Just set "dynamite_attach=no" at the unwanted frontend with a udev rule (please look at the dynamite README).
It's not really tested, since I have not such a card, but the patch is almost trivial. Feedback is welcome.
I hope the dvb/v4l developers will someday agree on a standard layout for hybrid tuners...
Regards, Lars.