Which /dev/radio interface did you use? I've tried a few so far with no luck. I'm just using minicom though so not sure if I'm doing it wrong!
There the multiple different file discriptors each correspond to the some function for the 2 different UEs? (Is this modem true multi-UE or Mux'ed?) in the cosmo (1 per modem). the /dev/radio/acti1 is the first modem is atci1 and the second acti2. I have tried to use minicom as well but there seams to be some issue with the terminal-setup on the cosmo. Instead I used the echo and cat in two different terminals.
A few different references https://comsecuris.com/blog/posts/path_of_least_resistance/ and https://github.com/CellularPrivacy/Android-...ctor/issues/199
Also to answer milbry's question: I have been busy with my regular work and there have limited time to progress/investigate, however, I did do a dump of the modem setup process in android using logcat -b radio to understand how the process of the modem setup occurs as this basically to my understanding need be replicated by the RIL driver/plugin for ofono (the android-mediatek RIL is still user when booting under linux). From this it is clear that the rild-oem (different for previous media-tek approaches, see https://github.com/rilmodem/ofono) is used for some kind of diagnostic/configuration under android and that the ccmni1 and ccmni2 are the actual ppp data interfaces that are used in android. I have not filtered the dump for private information yet and will therefore not post it.
Now I am with v22, But I can't see my sim card ( ofono, connman, networkmanager, minicom ). You said that you used echo and cat. Please , could you put here the steps ( a tutorial ) here. Thanks a lot.
