Fix RUTX modems

root/target/linux/ipq40xx/base-files/bin/board_track

@@ -0,0 +1,41 @@
+#!/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
+	}
+
+	logger -t "board-track" "ls -d /sys/bus/usb/devices/$id/${id}*/tty?*"
+	ttys=$(ls -d /sys/bus/usb/devices/$id/${id}*/tty?*)
+
+	[ -n "$ttys" ] || { #FAILED TO FIND MODEM
+		logger -t "board-track" "modem $id not detected"
+		for m in /sys/class/gpio/modem*_power; do
+			label="$(basename $m | awk -F_ '{print $1}')"
+			mctl -s -m ${label}
+			sleep 1
+			mctl -p -m ${label}
+		done
+		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

root/target/linux/ipq40xx/base-files/etc/init.d/modem_tracker

@@ -0,0 +1,33 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2021 Teltonika Networks
+
+START=96
+
+USE_PROCD=1
+
+PROG=/bin/board_track
+NAME=board_track
+PIDCOUNT=1
+
+start_service() {
+	local pid_file="/var/run/${NAME}.${PIDCOUNT}.pid"
+
+	procd_open_instance
+	procd_set_param command "$PROG"
+	procd_set_param file /etc/config/system
+
+	procd_set_param respawn
+
+	procd_set_param stdout 1
+	procd_set_param pidfile $pid_file
+	procd_close_instance
+}
+
+reload_service() {
+	stop
+	start
+}
+
+service_triggers() {
+	procd_add_reload_trigger "system"
+}