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

[Christian Ege]

Am 10.10.2014 18:13 schrieb "Simon Andrieu" <sandrieu at greenflex.com>:
>
> 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?
>
Is udev/systemd up and running?

Regards,
Christian
>
>
> Thanks for your help.
>
>
>
> Regards,
>
> Simon Andrieu
>
>
>
>
> --
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