Andreas Böhler <news@xxxxxxxxxxx> writes: > On 18/09/17 22:18, Bjørn Mork wrote: >> Andreas Böhler <news@xxxxxxxxxxx> writes: >>> >>> I can also provide you with Wireshark USB traces, if that helps? >> >> It might help. We are obviously interacting badly with the firmware. >> Seeing where and how it stops would be useful. > > Attached are two Wireshark traces, I hope that I captured everything > relevant: > > 1. wwan_init_connect_failed.pcapng.gz > 2. wwan_reset_init_connect_success.pcapng.gz > > I disabled everything Modem-related (i.e. ModemManager), I blacklisted > the cdc* modules then I restarted the machine. The first trace was taken > directly after boot. I loaded the modules and I tried to enable > ModemManager and to connect to the Internet - it failed. > > The second trace was taken after disabling ModemManager and sending > "AT+CFUN=15" to the device, thus resetting it. I then enabled > ModemManager and connected to the Internet - which succeeded. Thanks a lot. These are very useful. The thing is that I really cannot see anything going wrong there. The "failed" capture just ends with a sequence of successful MBIM indications being read from the firmware. So whatever goes wrong looks like something entirely local to the driver. I'll try to poke around some more. Bjørn -- 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
