Philip Prindeville wrote: > > Hmmm... I personally have little use for the video functionality > that a lot of DVB cards come with... > Who actually uses the video capture logic? I do. In fact, I've bought the card only because it has an additional (S-)Video-In connector for my game console (or vhs-recorder). > I've always wondered... On a multi-function card, does the driver > have to handle all aspects of that functionality? Or can you have > separate, stand-alone drivers that each handle one type of > functionality, without them having to be aware of each other > or interact with each other? Speaking about the BT878 based cards, the connection is already pretty loose. The BT878 has two functional blocks - video capture and audio capture which show up as two different PCI devices. The bttv driver handles the video capture part and works fine without the dvb-driver. The DVB "receiver" is connected to the audio part. Unfortunately, the DVB receiver usually needs the I2C bus and some GPIO pins which are both part of the "video"-function of the BT878. So the DVB driver has to contact the bttv driver whenever it wants access to these pins. It should be possible to create a dummy bttv driver that only supplies GPIO and I2C access. This dummy driver could even be part of the dvb-bt878 driver. (I may be wrong but wasn't the first version of the dvb-bt878 driver like that?) But you have to find someone who's willing spends some hours of work to do that :-) I wouldn't - it's unsatisfying to invest a lot of work just to "remove" functionality. Ciao, ET.
