Modem shell with modem_cellular

[johnp789]

I'm working on an application similar to the cellular-modem sample. My board has a Quectel BG95 modem. The application is able to establish a connection and ping internet hosts. Now, I'd like to add CONFIG_MODEM_SHELL=y so that I can get modem information like the IMEI and send AT commands. Adding CONFIG_MODEM_CONTEXT=y gets the modem shell command compiled into my application, but the modem list command does not return any modems.

Is the new modem_cellular driver interoperable with the modem shell commands? If so, what might I be missing in order to get the modem shell list to find the modem?

[ouaaliw]

Hello Mr.John, I am in the same trouble, i could not fix this problem, do you have please any idea to fix this problem?

[johnp789]

I did not find a solution, but I did not spend much time on it. In the end, I used something other than Zephyr for my project, for non-technical reasons.

[erickmf]

Same problem here with the SIM7080. Modem shell is enabled, but modem list doesn't show anything.
I'm using Zephyr LTS v3.7.1.

Any tips?

[zafersn]

Hey @johnp789,

I am also working with modem_cellular sample over at zephyr/samples/net/cellular_modem. To send AT commands with this setup, you just need to enable CONFIG_MODEM_AT_SHELL.

Not quite sure but It looks like you might've turned off CONFIG_MODEM_CELLULAR and switched on CONFIG_MODEM_QUECTEL_BG9X. That means you're using the dedicated Quectel BG9X driver, which might not play nice with the modem_cellular setup.

I am trying to figure out on your current setup and which modules you're using? It seems like you're working with an older modem driver and its related shell and context. I haven't tested those with modem_cellular, so I'm not sure how well they mesh.

If you're able to send AT commands through the shell but the modem list isn't showing up, you might want to check out these functions in modem_shell.c:

• cmd_modem_list
• ms_context_from_id
• modem_context_from_id

These are key in pulling up the modem context and might shed some light on what's going on.