Fibocom L831-EAU and cdc_mbim

2017-09-16 Thread Andreas Böhler
Hey, I recently bought a Thinkpad T470 notebook and added the Fibocom L831-EAU WWAN card. It's mbim-based, but unfortunately I can't get it to work correctly. In fact I'm experiencing similar issues to Patrick Chilton, who reported this behaviour a few months ago also on this list: https://ww

Re: Fibocom L831-EAU and cdc_mbim

2017-09-18 Thread Andreas Böhler
On 18/09/17 12:27, Bjørn Mork wrote: > Andreas Böhler writes: > >> I recently bought a Thinkpad T470 notebook and added the Fibocom >> L831-EAU WWAN card. It's mbim-based, but unfortunately I can't get it >> to work correctly. In fact I'm experiencing si

Re: Fibocom L831-EAU and cdc_mbim

2017-09-18 Thread Andreas Böhler
On 18/09/17 22:18, Bjørn Mork wrote: > Andreas Böhler 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

Re: Fibocom L831-EAU and cdc_mbim

2017-09-19 Thread Andreas Böhler
On 19/09/17 14:25, Bjørn Mork wrote: > Bjørn Mork writes: > > What happens if you kill the mbim-proxy process? Are you then able to > use the modem again without resetting it? I was unable to test that: It can only be killed using SIGKILL, any new mbim-proxy processes are then unable to open t

Re: Fibocom L831-EAU and cdc_mbim

2017-09-22 Thread Andreas Böhler
On 19/09/17 17:38, Bjørn Mork wrote: > Andreas Böhler writes: > >> On 19/09/17 14:25, Bjørn Mork wrote: >>> Bjørn Mork writes: >>> >>> Maybe we should simply ignore stalls completely? They should not happen >>> with any real WDM device anyway