Sierra Wireless EM7455

Bjørn Mork bjorn at mork.no
Fri May 6 20:05:27 UTC 2016


Stefan Armbruster <ml001 at armbruster-it.de> writes:

> Thanks for the build instructions. I've followed them closely, but
> unfortunately I still get a time out upon "Allocate CID".
>
> # qmicli -v -p -d /dev/cdc-wdm0 --device-open-mbim --dms-set-fcc-authentication
> [06 Mai 2016, 20:43:30] [Debug] [/dev/cdc-wdm0] Opening device with
> flags 'proxy, mbim'...
> [06 Mai 2016, 20:43:30] [Debug] cannot connect to proxy: Verbindung
> ist gescheitert: Verbindungsaufbau abgelehnt
> [06 Mai 2016, 20:43:30] [Debug] spawning new qmi-proxy (try 1)...

No, sorry.  This libqmi instance was not built with MBIM support.
Hitting the qmi-proxy here proves that the MBIM support is missing.
Yes, it's subtle.  We should make device-open-mbim fail in this case.
But for now we'll just look for this debug message.

Maybe libqmi didn't find the libmbim installation? Does

  pkg-config --modversion mbim-glib

give you 1.13.0? And when you run

  ./configure --prefix=/usr --enable-mbim-qmux

do you see:

  checking for MBIM... yes

?

And if you do:

   ldd `which qmicli`|grep mbim

do you see something like:

        libmbim-glib.so.4 => /usr/lib/x86_64-linux-gnu/libmbim-glib.so.4 (0x00007fe95cb80000)

?


Bjørn


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