php-linux-gpio/lib/Bus/BusInterface.php

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2014-06-14 01:10:07 +00:00
<?php
/*
* Copyright (C) 2014, NoccyLabs
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>
*/
namespace NoccyLabs\Gpio\Bus;
interface BusInterface
{
/**
* Write data to the bus. The data will be written immediately.
*
*/
public function write($data);
/**
* Read data from the buffer, or perform additional null reads over the
* (SPI) bus to acquire the data.
*
*/
public function read($bytes);
/**
* Return the number of bytes in the read buffer
*
*/
public function getBufferFill();
}