[yocto] cellular modem connection with USB: how to have /dev/ttyACM0 interface?

[Simon Andrieu]

Hi,

I work on connecting a cellular module (with H24 Telit component) using an USB interface to our Yocto distribution.
The /dev/ttyACM0 interface is not mounted on the Yocto distribution I use following USB connection. Here are the dmesg logs:
[65133.056335] usb 2-1: new high speed USB device using musb-hdrc and address 2
[65133.214965] usb 2-1: device v22b8 p2d91 is not supported
[65133.220520] usb 2-1: New USB device found, idVendor=22b8, idProduct=2d91
[65133.227508] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[65133.234924] usb 2-1: Product: Motorola Phone (H24)
[65133.239929] usb 2-1: Manufacturer: Motorola, Inc.
[65133.274108] usbcore: registered new interface driver cdc_acm
[65133.280029] cdc_acm: v0.26:USB Abstract Control Model driver for USB modems and ISDN adapters

Maybe the used cdc-acm driver is not the right version.
Would you know which cdc-acm driver version I should use please?
How is it possible to change/upgrade the cdc-acm module?
Would you have any advice to help me please?

Thanks for your help.

Regards,
Simon Andrieu

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