LN920: MBIM Bands not shown (MM 1.18.2)
Amol Lad
Amol.Lad at 4rf.com
Mon Oct 11 16:06:46 UTC 2021
LIBQMI_WITH_MBIM_QMUX is enabled in libqmi and qmicli reports ok. It seems for some reasons modemmanager is not able to read out the bands. Any input regarding this will be helpful.
# qmicli -d /dev/cdc-wdm0 -p --dms-get-band-capabilities
[/dev/cdc-wdm0] Device band capabilities retrieved:
Bands: 'wcdma-2100, wcdma-pcs-1900, wcdma-dcs-1800, wcdma-1700-us, wcdma-850-us, wcdma-800, wcdma-900, wcdma-1700-japan, wcdma-850-japan'
LTE bands: '1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 42, 43'
LTE bands (extended): '1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 38, 39, 40, 41, 42, 43, 48, 66, 71'
Thanks
Amol
From: Amol Lad
Sent: Monday, 11 October 2021 6:34 PM
To: 'Daniele Palmas' <dnlplm at gmail.com>; 'ModemManager (development)' <modemmanager-devel at lists.freedesktop.org>
Subject: LN920: MBIM Bands not shown (MM 1.18.2)
Hi Daniele,
I'm patched my MM 1.18.2 with your MR (LN920 Initial Support) and testing LN920 in MBIM mode. I'm noticing that the "supported" and "current" bands are not shown in "mmcli -m 0" output and below error is seen in the logs:
<warn> [modem0] couldn't load supported bands: Could not find 4G band flags from response
Any suggestion what could be going wrong?
mmcli -m 0 output in both MBIM and QMI is below:
MBIM
----
# mmcli -m 0
----------------------------------
General | path: /org/freedesktop/ModemManager1/Modem/0
| device id: 168c2aa5755860bee3694899a635af0df25e7fcf
----------------------------------
Hardware | manufacturer: Telit Wireless Solutions
| model: LN920
| firmware revision: SDX12.LE.1.0-00085-NBOOT.NEFS.
| carrier config: default
| h/w revision: LN920A12-WW
| supported: gsm-umts, lte
| current: gsm-umts, lte
| equipment id: 354175759991229
----------------------------------
System | device: /sys/devices/platform/soc/soc:internal-regs/f10f0000.usb3/usb2/2-1
| drivers: cdc_mbim, option1
| plugin: telit
| primary port: cdc-wdm0
| ports: cdc-wdm0 (mbim), ttyUSB0 (ignored), ttyUSB1 (gps),
| ttyUSB2 (at), ttyUSB3 (at), ttyUSB4 (ignored), 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; preferred: none
| allowed: 4g; preferred: none
| allowed: 3g, 4g; preferred: none
| current: allowed: 4g; preferred: none
----------------------------------
IP | supported: ipv4, ipv6, ipv4v6
----------------------------------
3GPP | imei: 354175759991229
| enabled locks: fixed-dialing
| operator id: 40445
| operator name: airtel
| registration: home
----------------------------------
3GPP EPS | ue mode of operation: csps-2
| initial bearer path: /org/freedesktop/ModemManager1/Bearer/0
| initial bearer ip type: ipv4v6
----------------------------------
SIM | primary sim path: /org/freedesktop/ModemManager1/SIM/0
| sim slot paths: slot 1: /org/freedesktop/ModemManager1/SIM/0 (active)
| slot 2: /org/freedesktop/ModemManager1/SIM/1
----------------------------------
Bearer | paths: /org/freedesktop/ModemManager1/Bearer/1
QMI
---
----------------------------------
General | path: /org/freedesktop/ModemManager1/Modem/0
| device id: 5c1922b03727107842603eccdea2bb4cd26436f5
----------------------------------
Hardware | manufacturer: Telit
| model: LN920A12-WW
| firmware revision: M0L.000000-A006
| carrier config: default
| h/w revision: 10001
| supported: gsm-umts, lte
| current: gsm-umts, lte
| equipment id: 354175759991229
----------------------------------
System | device: /sys/devices/platform/soc/soc:internal-regs/f10f0000.usb3/usb2/2-1
| drivers: option1, qmi_wwan
| plugin: telit
| primary port: cdc-wdm0
| ports: cdc-wdm0 (qmi), ttyUSB0 (ignored), ttyUSB1 (gps),
| ttyUSB2 (at), ttyUSB3 (at), ttyUSB4 (ignored), wwan0 (net)
----------------------------------
Numbers | own: 9108813566
----------------------------------
Status | lock: sim-pin2
| unlock retries: sim-pin (3), sim-pin2 (3), sim-puk (10), sim-puk2 (10)
| state: connected
| power state: on
| access tech: lte
| signal quality: 42% (recent)
----------------------------------
Modes | supported: allowed: 3g; preferred: none
| allowed: 4g; preferred: none
| allowed: 3g, 4g; preferred: 4g
| allowed: 3g, 4g; preferred: 3g
| current: allowed: 4g; preferred: none
----------------------------------
Bands | supported: utran-1, utran-3, utran-4, utran-6, utran-5, utran-8,
| utran-9, utran-2, eutran-1, eutran-2, eutran-3, eutran-4, eutran-5,
| eutran-7, eutran-8, eutran-12, eutran-13, eutran-14, eutran-17,
| eutran-18, eutran-19, eutran-20, eutran-25, eutran-26, eutran-28,
| eutran-29, eutran-30, eutran-38, eutran-39, eutran-40, eutran-41,
| eutran-42, eutran-43, eutran-48, eutran-66, eutran-71, utran-19
| current: eutran-1, eutran-2, eutran-3, eutran-4, eutran-5, eutran-7,
| eutran-8, eutran-12, eutran-13, eutran-14, eutran-17, eutran-18,
| eutran-19, eutran-20, eutran-25, eutran-26, eutran-28, eutran-29,
| eutran-30, eutran-38, eutran-39, eutran-40, eutran-41, eutran-42,
| eutran-43, eutran-48, eutran-66, eutran-71
----------------------------------
IP | supported: ipv4, ipv6, ipv4v6
----------------------------------
3GPP | imei: 354175759991229
| enabled locks: fixed-dialing
| operator id: 40445
| operator name: airtel
| registration: home
----------------------------------
3GPP EPS | ue mode of operation: csps-2
| initial bearer path: /org/freedesktop/ModemManager1/Bearer/0
| initial bearer ip type: ipv4v6
----------------------------------
SIM | primary sim path: /org/freedesktop/ModemManager1/SIM/0
| sim slot paths: slot 1: /org/freedesktop/ModemManager1/SIM/0 (active)
| slot 2: /org/freedesktop/ModemManager1/SIM/1
----------------------------------
Bearer | paths: /org/freedesktop/ModemManager1/Bearer/1
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