Good Morning, I have been working to add modem manager support to mmsd, as well as making several improvements to the mmsd. For Modem Manager, I have had it tested across several carriers in the US as well as in Canada, Sweden, and France. I think it is stable enough to warrant upstreaming the changes. What would be the procedure to start upstreaming it? I assume have two set of patches: 1) A set of patches to enable modem manager support 2) A set of general improvement patches My repository lives here: https://source.puri.sm/kop316/mmsd/ The original code from upstream is here: https://source.puri.sm/kop316/mmsd/-/tree/master , with all of the changes I have been making are here: https://source.puri.sm/kop316/mmsd/-/tree/ModemManager . I also made Debian packaging for the Modem Manager plug in here: https://source.puri.sm/kop316/mmsd/-/tree/debian/modemmanager/latest Thank you! Respectfully, Chris