> > I did your suggested modifications (patches mm-broadband-modem-qmi.c) and it > seems to change nothing (I keep getting my signal quality "cached" and I > don't see "Signal Strength" indications beside in the beginning of modem > initialization) >
If you cannot physically remove the antenna for the testing, can you at least move the modem around? You may also enable the extended signal interface with e.g. a 10s rate and see if the reported RSSI values change across the thresholds you configured. The key to understand is whether we can see the indications arriving when the values cross the threholds. I've looked around the code and there is also a warning I added a while ago regarding the amount of thresholds we can configure. Looks like we should not configure many because there are devices that don't like them, so we left 5 thresholds by default. I understand this may not be fully desirable, as it would mean just a few signal updates happening only when the values change a lot. The new suggested thresholds here should help to get more indications, but it may not be enough. Maybe switching to the signal info indications (as per the "newest QMI commands" logic) would make more sense, that is something that could also be investigated. -- Aleksander https://aleksander.es