Cinterion MV31-W modem support

ROSTANSKI Tomasz tomasz.rostanski at
Wed Aug 4 08:10:17 UTC 2021

Hi Aleksander,

The MV-31W comes in two variants - USB and PCIe.
The USB one, as far as I know, uses Cinterion VID.
The PCIe I have uses Thales VID, also Thales VID has been added to mhi driver in kernel, so I would assume for now the PCIe variant uses Thales VID while USB variant uses Cinterion VID.
I believe the modem is based on Qualcomm SDX55 chip.


-----Original Message-----
From: Aleksander Morgado <aleksander at> 
Sent: Wednesday, August 4, 2021 9:56 AM
To: ROSTANSKI Tomasz <tomasz.rostanski at>
Cc: Loic Poulain <loic.poulain at>; modemmanager-devel at
Subject: Re: Cinterion MV31-W modem support

Hey Tomasz,

> Thank you. The patch works. The correct vendor and device id are presented.
> The plugin manager still prints that it found 3 plugins to try, but now the first to try and best plugin is cinterion.

Please post your changes to add support for the WWAN subsystem in the Cinterion plugin once you have them working properly.
Will they always have the Thales PCI vid 0x1269?



More information about the ModemManager-devel mailing list