CTL_STATUS_t ctl_mac_init(CTL_NET_INTERFACE_t *self);
ctl_mac_init initializes the MAC on the network interface self. In effect, ctl_mac_init is a wrapper around the init_fn member of the the CTL_NET_MAC_DRIVER_t driver. You need to call ctl_mac_init from your application code. ctl_mac_init returns a MAC-layer or PHY-layer error status.