No TX stats reported in Ericsson modem

[Aleksander Morgado]

Hey,

I'm playing with the packet statistics reported by my Ericsson MBIM
capable modem (0BDB:193E) and I just realized that the device reports
correct RX packets and bytes, but not the TX ones (all set to 0):

[02 dic 2015, 16:27:00] [Debug] [/dev/cdc-wdm1] Received message...
>>>>>> RAW:
>>>>>>   length = 96
>>>>>>   data   = 03:00:00:80:60:00:00:00:03:00:00:00:01:00:00:00:00:00:00:00:A2:89:CC:33:BC:BB:8B:4F:B6:B0:13:3E:C2:AA:E6:DF:14:00:00:00:00:00:00:00:30:00:00:00:00:00:00:00:00:00:00:00:E6:42:51:00:00:00:00:00:7A:14:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00

[02 dic 2015, 16:27:00] [Debug] [/dev/cdc-wdm1] Received message (translated)...
>>>>>> Header:
>>>>>>   length      = 96
>>>>>>   type        = command-done (0x80000003)
>>>>>>   transaction = 3
>>>>>> Fragment header:
>>>>>>   total   = 1
>>>>>>   current = 0
>>>>>> Contents:
>>>>>>   status error = 'None' (0x00000000)
>>>>>>   service      = 'basic-connect' (a289cc33-bcbb-8b4f-b6b0-133ec2aae6df)
>>>>>>   cid          = 'packet-statistics' (0x00000014)

[/dev/cdc-wdm1] Packet statistics:
  Octets (in): '5325542'
 Packets (in): '5242'
Discards (in): '0'
  Errors (in): '0'
 Octets (out): '0'
Packets (out): '0'
Discards (out): '0'
 Errors (out): '0'

Has anyone seen this before?

-- 
Aleksander
https://aleksander.es