Sierra EM7355 - Cannot connect

[Aleksander Morgado]

Hey,

On Sat, Aug 25, 2018 at 2:03 PM, Yevgeny Bar Lev <ykrivolapov at gmail.com> wrote:
> Hello,
> ModemManager is not able to connect to the port. Tried the solution
> described here
> https://www.freedesktop.org/software/ModemManager/api/1.8.0/ref-overview-modem-filter.html,
> and it didn't help.
> Help will be appreciated.
> Best,
> Yevgeny
>
> ~$ lsusb
> Bus 002 Device 002: ID 1199:901f Sierra Wireless, Inc.
>
> systemctl status ModemManager.service
> ● ModemManager.service - Modem Manager
>    Loaded: loaded (/usr/lib/systemd/system/ModemManager.service; enabled;
> vendor preset: disabled)
>    Active: active (running) since Sat 2018-08-25 14:26:36 IDT; 33min ago
>  Main PID: 3638 (ModemManager)
>     Tasks: 3 (limit: 4915)
>    Memory: 2.8M
>    CGroup: /system.slice/ModemManager.service
>            └─3638 /usr/bin/ModemManager
>
> Aug 25 14:31:05 arch ModemManager[3638]: spawning new mbim-proxy (try 1)...
> Aug 25 14:31:05 arch ModemManager[3638]: [/dev/cdc-wdm0] Read max control
> message size from descriptors file: 4096
> Aug 25 14:31:05 arch ModemManager[3638]: [/dev/cdc-wdm0] unexpected port
> hangup!
> Aug 25 14:31:05 arch ModemManager[3638]: [/dev/cdc-wdm0] channel destroyed
> Aug 25 14:31:06 arch ModemManager[3638]: <info>  Couldn't check support for
> device '/sys/devices/pci0000:00/0000:00:19.0': not suppor>
> Aug 25 14:31:06 arch ModemManager[3638]: <info>  Couldn't check support for
> device '/sys/devices/pci0000:00/0000:00:1c.1/0000:03:00.0>
> Aug 25 14:31:35 arch ModemManager[3638]: proxy configuration failed: closed
> Aug 25 14:31:35 arch ModemManager[3638]: <info>  [device
> /sys/devices/pci0000:00/0000:00:14.0/usb2/2-4] creating modem with plugin
> 'S>
> Aug 25 14:31:35 arch ModemManager[3638]: <warn>  Could not grab port
> (usbmisc/cdc-wdm0): 'Cannot add port 'usbmisc/cdc-wdm0', unsuppo>
> Aug 25 14:31:35 arch ModemManager[3638]: <warn>  Couldn't create modem for
> device '/sys/devices/pci0000:00/0000:00:14.0/usb2/2-4': Fa>
> lines 1-19/19 (END)
>

What libmbim and ModemManager versions are you using?


-- 
Aleksander
https://aleksander.es