ANN: libmbim 1.4.0 released

Bjørn Mork bjorn at
Mon Jun 24 12:17:48 PDT 2013

Aleksander Morgado <aleksander at> writes:

> Hey!
> Lots of changes in 1.4.0! I believe already supporting all messages
> published in MBIM 1.0/1.1.

Wow! That's impressive.  I am looking forward to the next wave of distro

>  * Updated mbimcli with new commands:
>     --query-packet-statistics

This is interesting.  Looks like the MC7710 firmware only counts TX, but
that's also where we have the biggest difference between the driver view
and the network view. The numbers shows that the firmware counts
considerably less bytes than the driver:

bjorn at nemi:~$ ifconfig wwan0
wwan0     Link encap:Ethernet  HWaddr ee:9f:43:f2:62:e1  
          inet addr:  Bcast:  Mask:
          inet6 addr: fe80::ec9f:43ff:fef2:62e1/64 Scope:Link
          RX packets:67868 errors:0 dropped:0 overruns:0 frame:0
          TX packets:14115 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:93787619 (89.4 MiB)  TX bytes:16939980 (16.1 MiB)

bjorn at nemi:~$ mbimcli -d /dev/cdc-wdm0 --no-open=7 --no-close  --query-packet-statistics
[/dev/cdc-wdm0] Packet statistics:
           Octets (in): '0'
          Packets (in): '0'
         Discards (in): '0'
           Errors (in): '0'
          Octets (out): '10946844'
         Packets (out): '14104'
        Discards (out): '0'
          Errors (out): '0'
[/dev/cdc-wdm0] Session not closed:
            TRID: '8'

I assume the firmware is somewhat closer to reality, but I still think
the number looks high. Guess we won't know for sure until I start
working on additional driver counters.  Have no idea when that will
happen.  Probably not on this side of the summer..


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