#!/bin/sh

. /lib/functions/uci-defaults.sh

CFG=/etc/board.json
SLP=30

check_modem() {
	json_select "$2"
	json_get_vars id

	[ -z "$id" ] && {
		json_select ..
		return 0
	}

	ttys=$(ls -d /sys/bus/usb/devices/$id/${id}*/tty?*)

	[ -n "$ttys" ] || { #FAILED TO FIND MODEM
		mctl -s
		sleep 1
		mctl -p
		json_select ..
		return 1
	}

	#MODEM UP
	json_select ..
}

board_config_update
while true; do
	json_for_each_item check_modem modems
	sleep $SLP
	[ $SLP -lt 300 ] && SLP=$((SLP+30))
done