Re: Configure a connection for a gsm with dynamic ttyACMx

[Dan Williams <dcbw redhat com>]

On Tue, 2015-05-26 at 08:34 +0200, Thomas Haller wrote:
> On Tue, 2015-05-26 at 00:37 +0200, Jean-Christian de Rivaz wrote:
> > Hello,
> >
> > I have a system where the modem have multiple /dev/ttyACMx ports where x 
> > is not constant because of the dynamic nature of others serial devices. 
> > ModemManager always detect the rights ttyACMx of the modem
>
>
>
> > but 
> > NetworkManager only allow to configure a connection for a fixed device.
>
> this is not correct.
>
> Just leave "connection.interface-name" unspecified, for example via:
>
>    $ nmcli connection modify NAME connection.interface-name ""

It's important to note that this is the ModemManager *control port*,
which can be a TTY, a cdc-wdm, etc.

One thing we want to do, but haven't done yet, is to add a way to lock
the connection to the device ID and/or the SIM ID (IMSI), which should
often be more useful than the control port itself.

Dan