Run Modem Manager without DBUS

[Kulenda, Vit]

Good evening developers,

I am working on embedded device with linux. I've successfully built Modem Manager with my cross compile libraries/image. Device does not contain DBUS. I've installed built Modem Manager to device but there is warn message:

ModemManager --debug
ModemManager[19905]: <info>  [1636658433.345962] ModemManager (version 1.18.2) starting in system bus...
ModemManager[19905]: <debug> [1636658433.346149] [charsets] detecting platform iconv() support...
ModemManager[19905]: <debug> [1636658433.352142] [charsets]   UTF-8: iconv conversion to/from charset is supported
ModemManager[19905]: <debug> [1636658433.353445] [charsets]   UCS-2BE: iconv conversion to/from charset is supported
ModemManager[19905]: <debug> [1636658433.355109] [charsets]   ASCII: iconv conversion to/from charset is supported
ModemManager[19905]: <debug> [1636658433.356960] [charsets]   ISO8859-1: iconv conversion to/from charset is supported
ModemManager[19905]: <debug> [1636658433.357973] [charsets]   CP437: iconv conversion to/from charset is supported
ModemManager[19905]: <debug> [1636658433.359226] [charsets]   CP850: iconv conversion to/from charset is supported
ModemManager[19905]: <debug> [1636658433.360327] [charsets]   UTF-16BE: iconv conversion to/from charset is supported
ModemManager[19905]: <warn>  [1636658433.364754] could not acquire the 'org.freedesktop.ModemManager1' service name
ModemManager[19905]: <info>  [1636658433.365066] ModemManager is shut down

If I understand correctly it is due to missing DBUS on my device. Is possible to run ModemManager without DBUS - execute daemon from command line? Or is mandatory to have installed DBUS there?

Thank you

Best Regards

Vit Kulenda
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