> > Perhaps the *existence* of ftmr_params could indicate that it's > > enabled? > > My understanding is these are only optional parameters. So, I have kept > ftm_responder separate from params. Yes, they're only optional. I was just thinking that even an "empty" set of parameters could indicate enablement, but I guess we can even avoid the memory allocation, so perhaps it's better this way. Anyway it's only an internal API so can change as needed. johannes