Re: About PPP and modem initialization

[Dan Williams <dcbw redhat com>]

On Thu, 2011-04-07 at 08:45 +0200, Vincenzo Romano wrote:
> Hi all.
> I'm trying to use NetworkManager in order to bring a 3G (mobile
> broadband) connection up automatically
> (a so called "system connection").
> It works pretty well apart of an annoying recurring request for a PIN.
> But this is a just a minor thing.
> 
> What I need to do is to send a few extra AT commands to the USB modem
> *before* the NM brings the
> connection up and to retrieve the answers from those commands.
> I've not been able to find where to hook to.

That's done with a plugin for ModemManager for your specific modem
hardware.  There's plugins for quite a few modems to handle their
various quirks including initialization stuff.

http://cgit.freedesktop.org/ModemManager/ModemManager/tree/plugins

Dan