GSM_PPP api keeps sending commands to muxed AT channel

[ivonalo]

When enabling the CONFIG_MODEM_GSM_PPP=y and CONFIG_GSM_MUX=y options the gsm_ppp.c api keeps sending "AT+CSQ" command to the modem with the CONFIG_MODEM_GSM_RSSI_POLLING_PERIOD period.
Because of this, when I am sending some other AT commands in my custom api to the muxed AT channel, the response to my AT command interferes with the response to the AT+CSQ command and part of my command output gets lost.
Any idea how to solve this issue of responses interfering?

[ivonalo]

My question is how to synchronize the access to the modem with the gsm_ppp.c file from the application code? The semaphore is initialized in the gsm_ppp.c file and I have no idea how to access it from my application code

[rerickson1]

This should not be synchronized from the application code. The driver needs to change to have proper locking to account for this use case.

[github-actions]

This issue has been marked as stale because it has been open (more than) 60 days with no activity. Remove the stale label or add a comment saying that you would like to have the label removed otherwise this issue will automatically be closed in 14 days. Note, that you can always re-open a closed issue at any time.