Matching USB modems on serial.port

Adrian Cox adrian at
Fri Jan 30 08:43:26 PST 2009

----- "Dan Williams" <dcbw at> wrote:


> On Thu, 2009-01-29 at 14:25 +0100, Danny Kukawka wrote:
> You're pretty much going to have to hack up a solution, and get the
> upstream Ubuntu packages fixed.

Ubuntu 9.04 has removed the serial port probing patch which causes the problem, so our most likely solution is to ship the hacky fdi file as a workaround for users of Ubuntu 8.10.


> The real fix for this is a patch I'm doing right now, which uses
> udev-extras to probe the modem, add the right information to the udev
> database, and then have NetworkManager ask for it.  The patch is
> smart
> enough to figure out whether different ports are provided by the same
> physical device, and ignore subsequent ports.  After the ModemManager
> patches get merged then the extra ports will get used for signal
> strength and cell updates while connected.

That's exactly what we need in the long term.

Adrian Cox <adrian at>

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