#!/usr/bin/php

<?php

	require_once __DIR__.'/../../include/php/const';
	require_once __DIR__.'/Pin.php';

	function gpio_low($pin){

		/* (1) Create GPIO Pin instance */
		try{

			$gpio = new Pin($pin);

		}catch(Exception $e){

			return 127;

		}


		/* (2) Set mode to in */
		$gpio->value = Pin::GPIO_LOW;

		return 0;

	}


	/* [1] Check argument
	=========================================================*/
	if( $argc < 2 || !preg_match('@^\d+$@', $argv[1]) ){
		echo 127;
		die();
	}

	/* [2] Launch main script
	=========================================================*/
	echo gpio_low($argv[1]);
?>