MM 1.18.2 Supported Bands and Current Bands are empty

[Amol Lad]

Please find it below:

  ----------------------------------
  General  |                   path: /org/freedesktop/ModemManager1/Modem/0
           |              device id: a0193c11c5ea6e80f76bf9e745d04925de2e0867
  ----------------------------------
  Hardware |           manufacturer: Sierra Wireless, Incorporated
           |                  model: Sierra Wireless EM7511 Qualcomm® Snapdragon™ X16 LTE-A
           |      firmware revision: SWI9X50C_01.07.00.00
           |           h/w revision: EM7511
           |              supported: gsm-umts, lte
           |                current: gsm-umts, lte
           |           equipment id: 354580090133029
  ----------------------------------
  System   |                 device: /sys/devices/platform/soc/soc:internal-regs/f10f0000.usb3/usb2/2-1
           |                drivers: cdc_mbim, qcserial
           |                 plugin: sierra
           |           primary port: cdc-wdm0
           |                  ports: cdc-wdm0 (mbim), ttyUSB0 (qcdm), ttyUSB1 (gps),
           |                         ttyUSB2 (at), wwan0 (net)
  ----------------------------------
  Numbers  |                    own: 9108813566
  ----------------------------------
  Status   |         unlock retries: sim-pin2 (3)
           |                  state: connected
           |            power state: on
           |            access tech: lte
           |         signal quality: 12% (recent)
  ----------------------------------
  Modes    |              supported: allowed: 3g, 4g; preferred: none
           |                current: allowed: 3g, 4g; preferred: none
  ----------------------------------
  IP       |              supported: ipv4, ipv6, ipv4v6
  ----------------------------------
  3GPP     |                   imei: 354580090133029
           |          enabled locks: fixed-dialing
           |            operator id: 40493
           |          operator name: airtel
           |           registration: home
  ----------------------------------
  3GPP EPS |   ue mode of operation: csps-2
           |    initial bearer path: /org/freedesktop/ModemManager1/Bearer/0
           |     initial bearer apn: internet
           | initial bearer ip type: ipv4
  ----------------------------------
  SIM      |       primary sim path: /org/freedesktop/ModemManager1/SIM/0
  ----------------------------------
  Bearer   |                  paths: /org/freedesktop/ModemManager1/Bearer/1

-----Original Message-----
From: Aleksander Morgado <aleksander at aleksander.es> 
Sent: Saturday, 2 October 2021 3:50 AM
To: Amol Lad <Amol.Lad at 4rf.com>
Cc: ModemManager (development) <modemmanager-devel at lists.freedesktop.org>
Subject: Re: MM 1.18.2 Supported Bands and Current Bands are empty

Hey,

>
> I'm testing MM 1.18.2 release and finding that the supported bands and current bands are shown empty. I'm using EM7511 modem in MBIM mode in OpenWRT framework (with QMI over MBIM enabled). The bands are displayed correctly in an older MM release (1.12.6). Please let me know what additional information I can provide regarding this.
>
> Please also note that the "length" property is also missing in 1.18.2
>
> MM 1.18.2
> modem.generic.supported-bands                   : --
> modem.generic.current-bands                     : --
>
> MM 1.12.6
> modem.generic.supported-bands.length            : 29
> modem.generic.supported-bands.value[1]          : utran-1
> modem.generic.supported-bands.value[2]          : utran-4
> modem.generic.supported-bands.value[3]          : utran-6
> ...
>
> modem.generic.current-bands.length              : 21
> modem.generic.current-bands.value[1]            : eutran-1
> modem.generic.current-bands.value[2]            : eutran-2
> modem.generic.current-bands.value[3]            : eutran-3
> ...
>

Could you give here the output of "mmcli -m 0" when running 1.18.2?

-- 
Aleksander
https://aleksander.es