AT port not attacted with RM520N-GL
Pradeep Gopanapalli
pradeep.gopanapalli at broadcom.com
Sat Jan 27 00:12:48 UTC 2024
Hello ModemManager devs,
We are using RM520N-GL in our SD-WAN edge device in USB mode on M.2 Slot.
We are facing an issue where AT USB ports(ttyUSB2, ttyUSB3) are not
enumerated .
We are using "modemmanager - 1.16.6-2" and also added RM520 blob to
" /lib/udev/rules.d/77-mm-quectel-port-types.rules" but still the AT port
is not attached .
Please advise any changes needed to resolve this issue.
# Quectel RM520
# # ttyUSB0 (if #0): QCDM/DIAG port
# # ttyUSB1 (if #1): GPS data port
# # ttyUSB2 (if #2): AT primary port
# # ttyUSB3 (if #3): AT secondary port
ATTRS{idVendor}=="2c7c", ATTRS{idProduct}=="0801", ENV{.MM_USBIFNUM}=="00",
ENV{ID_MM_PORT_TYPE_QCDM}="1"
ATTRS{idVendor}=="2c7c", ATTRS{idProduct}=="0801", ENV{.MM_USBIFNUM}=="01",
ENV{ID_MM_PORT_TYPE_GPS}="1"
ATTRS{idVendor}=="2c7c", ATTRS{idProduct}=="0801", ENV{.MM_USBIFNUM}=="02",
ENV{ID_MM_PORT_TYPE_AT_PRIMARY}="1"
ATTRS{idVendor}=="2c7c", ATTRS{idProduct}=="0801", ENV{.MM_USBIFNUM}=="03",
ENV{ID_MM_PORT_TYPE_AT_SECONDARY}="1"
In debug message there is log about "port is not AT-capable"
>>
2024-01-25T16:45:52.070 DEBUG daemon ModemManager[8350]: <debug>
[ttyUSB3/probe] port is not AT-capable
2024-01-25T16:45:52.070 DEBUG daemon ModemManager[8350]: <debug>
[ttyUSB2/probe] port is not AT-capable
mmcli -m a
-----------------------------------
General | path: /org/freedesktop/ModemManager1/Modem/1
| device id: a6228a17d57870bfb2b979508314470fb88a777a
-----------------------------------
Hardware | manufacturer: Quectel
| model: RM520N-GL
| firmware revision: RM520NGLAAR01A07M4G
| carrier config: default
| h/w revision: 20000
| supported: gsm-umts, lte, 5gnr
| current: gsm-umts, lte, 5gnr
| equipment id: 868371051057103
-----------------------------------
System | device: /sys/devices/pci0000:00/0000:00:14.0/usb2/2-2
| drivers: option1, qmi_wwan
| plugin: quectel
| primary port: cdc-wdm0
| ports: cdc-wdm0 (qmi), wwan0 (net)
-----------------------------------
Numbers | own: 16505469385
-----------------------------------
Status | lock: sim-pin2
| unlock retries: sim-pin (3), sim-puk (10), sim-pin2 (10),
sim-puk2 (10)
| state: connected
| power state: on
| access tech: lte
| signal quality: 100% (cached)
-----------------------------------
Modes | supported: allowed: 3g; preferred: none
| allowed: 4g; preferred: none
| allowed: 3g, 4g; preferred: 4g
| allowed: 3g, 4g; preferred: 3g
| allowed: 5g; preferred: none
| allowed: 3g, 5g; preferred: 5g
| allowed: 3g, 5g; preferred: 3g
| allowed: 4g, 5g; preferred: 5g
| allowed: 4g, 5g; preferred: 4g
| allowed: 3g, 4g, 5g; preferred: 5g
| allowed: 3g, 4g, 5g; preferred: 4g
| allowed: 3g, 4g, 5g; preferred: 3g
| current: allowed: 3g, 4g, 5g; preferred: 5g
-----------------------------------
Bands | supported: utran-1, utran-4, utran-6, utran-5, utran-8, 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-32, eutran-34, eutran-38, eutran-39, eutran-40,
eutran-41,
| eutran-42, eutran-43, eutran-46, eutran-48, eutran-66,
eutran-71,
| utran-19
| current: utran-1, utran-4, utran-5, utran-8, 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-32, eutran-34, eutran-38, eutran-39, eutran-40,
eutran-41,
| eutran-42, eutran-43, eutran-46, eutran-48, eutran-66,
eutran-71,
| utran-19
-----------------------------------
IP | supported: ipv4, ipv6, ipv4v6
-----------------------------------
3GPP | imei: 868371051057103
| enabled locks: fixed-dialing
| operator id: 310260
| operator name: Ting
| registration: home
-----------------------------------
3GPP EPS | initial bearer path: /org/freedesktop/ModemManager1/Bearer/28
| initial bearer ip type: ipv4v6
-----------------------------------
SIM | primary sim path: /org/freedesktop/ModemManager1/SIM/2
| sim slot paths: slot 1: /org/freedesktop/ModemManager1/SIM/2
(active)
| slot 2: /org/freedesktop/ModemManager1/SIM/3
-----------------------------------
Bearer | paths: /org/freedesktop/ModemManager1/Bearer/29
mmcli -m 1 --command='ATI'
error: command failed:
'GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Connected: No AT port
available to run comman
Thanks,
Pradeep G
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