[RFC] HFP support into oFono and BlueZ

[Denis Kenzior]

Hi Luiz,

> having it as a MediaEndpoint I guess it is probably a good idea to
> have a similar design as we will have in endpoints, so the
> registration actually happen in adapter path rather than device path,
> which probably should avoid the having to resolve the device path
> while probing if we just send the device path as a parameter of
> NewConnection so we can do while in DEFER_SETUP stage so we don't risk
> missing or getting timeouts while transferring the the fd to ofono.

Personally I like this to be a per-device agent rather than per-adapter as it 
will make agent code inside oFono a bit easier to write.  Marcel / Johan, care 
to weigh in?

Regards,
-Denis