root@kndrt31r27:~# ubus
Usage: ubus [<options>] <command> [arguments...]
Options:
 -s <socket>:           Set the unix domain socket to connect to
 -t <timeout>:          Set the timeout (in seconds) for a command to complete
 -S:                    Use simplified output (for scripts)
 -v:                    More verbose output
 -m <type>:             (for monitor): include a specific message type
                        (can be used more than once)
 -M <r|t>               (for monitor): only capture received or transmitted traffic
 
Commands:
 - list [<path>]                        List objects
 - call <path> <method> [<message>]     Call an object method
 - listen [<path>...]                   Listen for events
 - send <type> [<message>]              Send an event
 - wait_for <object> [<object>...]      Wait for multiple objects to appear on ubus
 - monitor                              Monitor ubus traffic

root@kndrt31r27:~# ubus list
dhcp
dnsmasq
file
hostapd.wlan0
iwinfo
kroks.dev.modem
kroks.dev.modem.modem1
kroks.dev.modem.modem1.simcard
kroks.dev.modem.modem1.simcard.modem1sim1
kroks.dev.modem.modem1.simcard.modem1sim2
kroks.dev.modem.modem1.sms
kroks.net.check
log
luci
luci-rpc
mwan3
network
network.device
network.interface
network.interface.lan
network.interface.loopback
network.interface.modem1
network.interface.wan
network.interface.wan6
network.rrdns
network.wireless
service
session
system
uci

root@kndrt31r27:~# ubus call kroks.dev.modem.modem1 bands
{
        "egsm": true,
        "utran-8": true,
        "eutran-3": true,
        "eutran-20": true,
        "eutran-40": true,
        "eutran-1": false,
        "eutran-41": false,
        "eutran-28": false,
        "eutran-38": true,
        "eutran-7": true,
        "utran-1": true,
        "dcs": true,
        "eutran-8": true
}

Рассмотрим на примере примера выше с bands.
Как видно, включены все частоты, кроме band-1, band-41, band-28. Включим их, но выключим band-20.

root@kndrt31r27:~# ubus call kroks.dev.modem.modem1 bands '{"eutran-1": true, "eutran-41": true, "eutran-28": true, "eutran-20": false}'
{
        "eutran-1": true,
        "utran-8": true,
        "utran-1": true,
        "eutran-20": false,
        "eutran-40": true,
        "eutran-28": true,
        "eutran-41": true,
        "egsm": true,
        "eutran-3": true,
        "eutran-7": true,
        "eutran-38": true,
        "dcs": true,
        "eutran-8": true
}

root@kndrt31r28:~# ubus -v list kroks.dev.modem.modem1*
'kroks.dev.modem.modem1' @827e6f0c
        "object":{"folder":"String"}
        "simtoggle":{}
        "simcard":{}
        "power":{}
        "modes":{}
        "state":{}
        "capabilities":{}
        "bands":{}
'kroks.dev.modem.modem1.simcard' @e7744e76
        "object":{}
'kroks.dev.modem.modem1.simcard.modem1sim1' @119a2c80
        "object":{"folder":"String"}
'kroks.dev.modem.modem1.sms' @8a46f205
        "object":{"folder":"String"}
        "cleanup":{"timestamp":"Integer","commit":"Boolean"}
        "send":{"number":"String","smsc":"String","storage":"String","class":"Integer","validity":"String","delivery-report-request":"Boolean","text":"String"}