Leveraging GPS in MC7700

Adam Sherman adam at sherman.ca
Mon Feb 6 12:35:25 UTC 2017

On 2017-02-06 07:31 AM, Aleksander Morgado wrote:
>>>> So, am I understanding correctly that there is no way to get GPS data
>>>> via a serial device, with this card?
>>> No, there is a way to do that, enabling the GPS receiver with AT
>>> commands and processing the NMEA traces received from another TTY; it
>>> just isn't implemented in ModemManager. We could implement the
>>> "unmanaged gps" location support in the Sierra plugin to handle that
>>> usecase.
>> If I need to use the GPS in this card right now, what does that look like?
> For a quick hack, you could blacklist all tty ports exposed by the
> modem with MM_PORT_IGNORE flags in udev rules, and then do the AT
> commands to start/stop GPS yourself. This would leave the modem
> running in QMI mode through ModemManager and you would be able to use
> the ttys as you wish at the same time.

And none of those ttys are required for the network data?


Adam Sherman <adam at sherman.ca>

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