On Fri, Oct 7, 2022 at 3:15 PM Alexey Orishko <alexey.oris...@gmail.com> wrote:
> On Fri, Oct 7, 2022 at 9:39 AM Jorge Solla <jorgeso...@gmail.com> wrote: > >> > Taking into account I want to establish a CAT-M, could somebody > please help me with the configuration? > >> To configure a modem to connect to LTE Cat-M1 without GSM/Cat-NB use > >> AT+CNMP=38 and AT+CMNB=1 > > > > How to instruct modemmanager to do this while handshaking with the modem? > It depends on your system design. You could pre-configure modem for > all required settings or dynamically set one or another settings via > mmcli or your application. > However I can't say if MM would be happy to deal with one serial-data port. > My plan was to "extend" existing simcom plugins to support 1-port mode. But I don't know if this is a crazy idea or not. Seems like MM is not very un-happy about the idea as (if you check the logs I attached on the 1st post) it looks like is launching ppp after the set of AT commands gets delivered while considering the modem a Generic GSM device. Using the typical ppp + chat script I managed to connect and get an IP on the ppp0 interface, is just I would like to do it using ModemManager. Different problem I forgot to mention in my initial post is: The modem requires to set a GPIO pin ON / OFF for a few seconds to be enabled: Is MM providing any kind of hook to insert calls to user utilities before the attempting the connection? Anyway, thank you very much for your help :)
