Connection to modem succeeds when running using /usr/sbin/ModemManager, but not when started as a service
We are using the SIMCOM7600e modem on a linux image based on arm64, kernel 5.15. When starting MM as a service, it states the following:
[plugin/generic] could not grab port cdc-wdm0: Cannot add port 'usbmisc/cdc-wdm0', unhandled port type
couldn't create modem for device '/sys/devices/platform/scb/fd500000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0': Failed to find primary AT port
This issue is not available when running MM on boot using /usr/sbin/ModemManager
. I attached the logs from both attempts. MM was started in debug mode and log level was set to debug.
Failure logs: mm_bug.log
Success logs: mm_success.log
We are stuck right now and unsure where the exact problem is. Any suggestion or help is greatly appreciated.