openwrt-packages-dist/net/nut/files/nut_serial.hotplug

#!/bin/sh

nut_serial() {
	local cfg="$cfg"
	local runas enable_usb_serial port
	config_get_bool enable_usb_serial "$cfg" enable_usb_serial 0
	config_get port "$cfg" port
	config_get runas "$cfg" runas "nut"

	[ -z "$runas" ] && config_get runas upsd runas "nut"

	[ "$enable_usb_serial" -eq 1 ] && {
		# If port is specified only change tty's matching port
		if [ -n "$port" ] && [ "$port" != /dev/"$DEVNAME" ]; then
			return 0
		fi
		[ -n "$runas" ] && chgrp "$(id -gn "${runas}")" /dev/"$DEVNAME"
		chmod g+rw /dev/"$DEVNAME"
	}
}

nut_on_hotplug_add() {
	. "${IPKG_INSTROOT}"/lib/functions.sh

	config load nut_server
	config_foreach nut_serial driver
}

[ "$ACTION" = "add" ] && [ -n "$DEVNAME" ] && {
	# On add of a serial port with name ttyUSB*
	[ -z "${DEVNAME%ttyUSB*}" ] && nut_on_hutplug_add
	# On add of a serial port with name ttyAMA*
	[ -z "${DEVNAME%ttyAMA*}" ] && nut_on_hutplug_add
}