Ok - we can arrive to some ocnclusions regarding the E3272. First of all - the modem seems buggy enough to not be able to handle requests for different formats. You need to unplug and re-plug it, but this is onlyan impression and is reasonable. Then - the modem will accept to ndisdup the connection with at^ndisdup=1,1,"internet" but - if we use huawei_cdc_ncm + cdc_ncm we have no flow handling messages and the modem stops here. If we use the cdc_ncm 32-bit driver (modified) we get lotfs of ^dsflorpt that's how it should be. So I think we can say that something is changing. Then there's the alignment problem you mentioned in your previous reply. And this is hard to solve. could you try to help me understand where the problem is? I feel like we are very close to the solution but something isn't working. Or might be just try to change the 16 bit driver? http://www.gstorm.eu/cdc_ncm.c -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html