Hi Lars,
Unfortunately I must come back to this issue. I got hands on a few new EC21s here and guess what ? The mux order is back to the original one again. This means, the aux channel has to be the second channel. So I did a bit of investigation why and when this happened. But information is rare. The modems I originally worked on and created the patch for have Firmware EC21EFAR06A01M4G_BETA0318. (Reversed mux order) The new ones do have version EC21EFAR06A03M4G. (original mux order) I know that there was a version EC21EFAR02A02M4G that did not support cmux at all. Due to some Quectel Confidential Document in a firmware version "R02A03" some bug was fixed in cmux, so cmux must be in there since then. The EC21EFAR06A01M4G_BETA0318 that I have is dated inbetween EC21EFAR02A02M4G and this "R02A03". The mux order must have changed between EC21EFAR06A01M4G_BETA0318 and EC21EFAR06A03M4G. I suspect (without knowing for sure) due to the beta-nature of my firmware, that this is the only firmware with reversed mux order and that they changed it after that and "R02A03" up until EC21EFAR06A03M4G share the same original mux order. According to Quectel the EC21EFAR06A01M4G_BETA0318 firmware I have here is not "out in the wild". The modems I have here are the only ones with this firmware. So my question is what's best to do now ? I feel the best would be to revert this patch. I am very sorry for this. New modems will work and I suspect old modems "out in the wild" will work also. I don't care about supporting the few "BETA0318" modems I have here.
I guess just send a revert patch with the reasons outlined in the commit description and I can take it.
Another way would be to leave this patch and implement some firmware switch and use reversed mux order for the "BETA0318" only I have and use normal original mux order for all other cases.
That would also be fine. Regards, -Denis _______________________________________________ ofono mailing list -- ofono@ofono.org To unsubscribe send an email to ofono-le...@ofono.org
