Hi Pavel, >>>>>>>> If I attempt to do AT+CNMA=1, AT+CNMA=0 or just plain At=CNMA, it does >>>>>>>> not like that, either, but with +CMS ERROR: 500. >>>>>>> >>>>>>> CNMA=1 is required to work in PDU mode according to 27.005 btw. How >>>>>>> about: >>>>>>> >>>>>>> window.open(); >>>>>>> window.throw(modem); >>>>>> >>>>>> Heh :-). Well, there are two phones with reasonable Linux support: >>>>>> N900 and Droid 4. N900 can't do voice calls of reasonable >>>>>> quality. That leaves Droid 4... so I'd really like it to work. >>>>> >>>>> Is this actually an AT command modem or one of those modems where AT >>>>> commands were only bolted on for carrier certification? Does it support >>>>> QMI >>>>> or something maybe? >>>> Ok, so ... this is complex. And maybe this is one of "those" modems. >>>> There's USB with AT commands, USB with QMI protocol, then serial with >>>> mux and U1234AT+XYZ commands. >>>> It seems Android uses serial, but that is being worked on, so I'm >>>> using AT commands for now. >>> >>> Wow, okay. You might want to try using the qmi driver family instead. >> >> I would switch to QMI since then you can also ignore this weird multiplexer. > > More explanation needed it seems: > > I can already do USB with AT commands, no multiplexer needed. We'd > actually prefer to go over serial (with multiplexer), because USB > needs to be powered down in idle, and you still need communication > ovre serial to know that wakeup of USB is needed. > > Yes, it is complex :-(.
I missed the part that the weird serial multiplexer is wired independently. Then do everything via that serial multiplexer and never look back. However if that is as broken, then you will be really out of luck. Making this work reliable will be really hard. While we have seen QMI protocol issues as well, but they have been less bad than the bolted on AT commands. Manufactures always get AT commands wrong since they let humans test it and not a real telephony stack like oFono. Regards Marcel _______________________________________________ ofono mailing list ofono@ofono.org https://lists.ofono.org/mailman/listinfo/ofono
