We are trying to incorporate 3g/4g dongles in our system that has Colibri iMX.6 as core module and Iris V1.1A as Carrier board.
After going through Embedded Linux Systems - GSM/3G/4G, we rebuilt the kernel with USB ACM and PPP support enabled in drivers. We also enabled QMI WWAN support for Qualcomm MSM based 3G and LTE modems in Device Drivers → Network Device Support → USB Network Adaptors
But still as we plug the modules all we recive in kernel logs is “new high speed USB device number using ci_hdrc”.
Kindly help us solve this issue.