I am looking to send AT commands to the Digi cellular modem while using a PPP connection. The modem manager is unable to create the AT command port because there is no CDC-ACM driver to create the serial interface.
How would I add this driver to my Yocto build? From what I understand, it is supposed to be installed as part of the kernel modules, however, I can't seem to find it.
I have tried adding the following to my local.conf file with no success.
- CORE_IMAGE_EXTRA_INSTALL += " kernel-modules"