How put in service WWAN0 interface


I’m working with i.mx8 and Quectel EG21 module (Yocto based) and i try to enabling wwan0 interface to connect the device with network LTE operator

I’ve update the kernel adding “qmi_wwan_q.c” file dilivered from Quectel and activate the driver via menuconfig.

When, from shell, I bring up the wwan0 interface i see :

wwan0: flags=193<UP,RUNNING,NOARP> mtu 1500
inet6 fe80::28b5:d6ff:fe76:689 prefixlen 64 scopeid 0x20
ether 2a:b5:d6:76:06:89 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 10 bytes 560 (560.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

where the ip address is the default ipv6 address. So I need to set the parameters so to connect with network and I image something like wpa_supplicant for wifi connection

Someone can help me?

Thanks in advance