Re: Configure a connection for a gsm with dynamic ttyACMx

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:

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

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.


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