Cinterion PLS63 not showing up as wwan0

[Brendan Simon]

IND.T Classification: External



________________________________
From: Giacinto Cifelli <gciofono at gmail.com>
Sent: Tuesday, 4 March 2025 8:38 PM

> if i remember correctly, the PLS63/83 has 2 enumerations, one is wwan
> the other one is qmi.
> You should check how is your module enumerating with the command AT^SSRVSET.

check this command options on the ATC guide.
As-is for sure it will return an error.
You need something like AT^SSRVSET="cursrvset", or AT^SSRVSET?, ... I
don't remember exactly.

Also, you can check the presence of /dev/cdc-wdm* and lsusb -t for
which drivers are used.

for the device naming, glad that you found by yourself, it has nothing
to do with MM, and in general doesn't matter, either.

Hi Giacinto.

I have resolve this issue thanks to your help 🙏

SerNum Parameter Description - USB Service Set Number
1 (D) CDC4 (USB4) enumerates as ECM devices. All USB devices of the UE enumerate with PID 0x0069.
11 CDC4 (USB4) enumerates as specific WWAN device. All USB devices of the UE enumerate with PID 0x006F.

Setting SetNum to 11 worked for me.
AT^SSRVSET="actSrvSet",11

USB driver is now qmi_wan instead of cdc_ether.
/dev/cdc-wdm0 is now present 🙂
ModemManger can detect the modem and I can connect to the Internet 🙂


# lsusb
Bus 001 Device 004: ID 1e2d:006f Gemalto M2M GmbH PLSx3

# lsusb -t
/:  Bus 001.Port 001: Dev 001, Class=root_hub, Driver=xhci_hcd/8p, 480M
    |__ Port 002: Dev 004, If 8, Class=Vendor Specific Class, Driver=qmi_wwan, 480M

# ls -l /dev/cdc*
crw------- 1 root root 180, 0 Mar  5 08:18 /dev/cdc-wdm0

# mmcli -L
    /org/freedesktop/ModemManager1/Modem/0 [QUALCOMM INCORPORATED] 0

# mmcli -m 0
  ----------------------------------
  General  |                   path: /org/freedesktop/ModemManager1/Modem/0
           |              device id: c38af5b873e196135a88038b9befbdd6586aa400
  ----------------------------------
  Hardware |           manufacturer: QUALCOMM INCORPORATED
           |                  model: 0
           |      firmware revision: MPSS.JO.2.0.2.c1.1-00149-9607_GENNS_PACK-1.46706.2.53108.3  1  [Dec 15 2023 06:00:00]
           |           h/w revision: 10000
           |              supported: gsm-umts, lte
           |                current: gsm-umts, lte
           |           equipment id: 350588282505965
  ----------------------------------
  System   |                 device: /sys/devices/pci0000:00/0000:00:0c.0/usb1/1-2
           |                physdev: /sys/devices/pci0000:00/0000:00:0c.0/usb1/1-2
           |                drivers: cdc_acm, qmi_wwan
           |                 plugin: cinterion
           |           primary port: cdc-wdm0
           |                  ports: cdc-wdm0 (qmi), ttyACM0 (at), ttyACM1 (at), ttyACM2 (at),
           |                         wwp0s12u2i8 (net)
  ----------------------------------
  Status   |                   lock: sim-pin2
           |         unlock retries: sim-pin (3), sim-puk (10), sim-pin2 (3), sim-puk2 (10)
           |                  state: connected
           |            power state: on
           |            access tech: lte
           |         signal quality: 100% (recent)
  ----------------------------------

# ifconfig
wwp0s12u2i8: flags=4305<UP,POINTOPOINT,RUNNING,NOARP,MULTICAST>  mtu 1500
        inet 10.255.0.29  netmask 255.255.255.252  destination 10.255.0.29
        unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 1000  (UNSPEC)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0



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