Re: OpenBSD-7.1beta EM7455 with default ports config detects as umb0 without AT ports

On 2022-04-05, Martin <martingot@protonmail.com> wrote:
> Hi list,
>
> Just connected EM7455 modem (factory default port configuration with MBIM + AT port + NMEA port + DM port) to a machine with latest 7.1beta snapshot.
>
> The modem detected as umb0, but no AT port or NMEA port detected at all.
>
> How did developers implement any alternative mechanism to access AT command port and NMEA port to obtain GPS data from modem?

OpenBSD doesn't have a way to do that. You may be able to get at
them if you run a kernel with umb disabled.



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