On Saturday 02 April 2005 01:27, Kenneth Aafl?y wrote: > On Saturday 02 April 2005 01:17, Johannes Stezenbach wrote: > > > int vid_channel_set_param(vid_channel_param_t, int value); > > > int vid_channel_get_param(vid_channel_param_t); > > > > I would prefer to use a struct, or rather a union of structs for > > each transmission system. You'd get nuts when you need a dozen > > function calls to tune or update the channel list. > > Do you have a neat method of checking what struct was used in the above single > entry call without to much fuzz? Maybe a enum in concert with a struct? In other words, sometimes you have to set a single parameter, other times it makes sense to set the complete set of parameters. The question is where do we break binary compatability when the device type changes. I would think that this is the best approach to binary compatability. We could even provide inline functions for the known types of adapters.. Kenneth
