Re: Allowed and preferred modes setting in NM modem connections

[Aleksander Morgado <aleksander lanedo com>]

> > NetworkManager currently allows to pass allowed/preferred modes (e.g. 2G
> > & 3G but 3G preferred) when requesting a connection to ModemManager. I'd
> > like to suggest to have these settings removed from the connection
> > profile (and therefore not passed to Simple.Connect()), and let system
> > preferences related applications (e.g. the GNOME Control Center) handle
> > these instead.
> >
> > Changing these settings just before attempting a connection is not a
> > good idea, as the task involves resetting the radio interface in the
> > modem and launching registration in the network from scratch, which will
> > take some time.
> >
> > Also, not all devices support changing modes, and not every device
> > supporting it allows the same set of allowed+preferred combinations, so
> > I don't think it's a good idea to have these kept together with the
> > connection profile settings (e.g APN, auth, user, pass), which could
> > themselves get re-used (e.g. if the SIM card is switched from one modem
> > to another).
> >
> > What do you guys think?
>
> I agree, lets deprecate the properties in libnm-util/nm-setting-gsm.c
> and then remove them from the Simple Connect stuff in
> nm-broadband-modem.c, leaving them for old ModemManager.  Anything
> talking to new MM can then do what you suggest.

See https://bugzilla.gnome.org/show_bug.cgi?id=701504 for the
NetworkManager patches for this issue.

I also removed bands/modes changing capability from the Simple.Connect()
logic in the 'aleksander/api-breaks' branch of MM.

-- 
Aleksander