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  3. Is modemmanager on VOXL1?

Is modemmanager on VOXL1?

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  • Ed SutterE Offline
    Ed SutterE Offline
    Ed Sutter
    Regular
    wrote on last edited by
    #1

    I'm struggling to understand how the modem link is managed/maintained in VOXL; so I have a few questions...

    As best I can tell, modemmanager is not used, true?
    I see the sierra.py script runs at startup (assuming voxl-configure-modem has been run prior) polling for /dev/ttyUSB2. That's fine for startup, but what about runtime... Is anything monitoring the link status?
    What facility/service is actually using qmi_wwan0.c in VOXL?
    Finally...
    After voxl-build completes, I can see several different qmi_wwan0.c files
    under the workspace. Which one is actually used?

    Thanks for your patience!

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    • tomT Offline
      tomT Offline
      tom
      admin
      wrote on last edited by
      #2

      @Ed-Sutter That is correct, modemmanager is not used.

      As you can see in the patch here: https://gitlab.com/voxl-public/system-image-build/meta-voxl/-/blob/master/recipes-kernel/linux-quic/files/qmi_wwan2.patch

      The path to the qmi_wwan.c file that is being modified / used is drivers/net/usb/qmi_wwan.c

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