43 lines
1.1 KiB
PHP
43 lines
1.1 KiB
PHP
|
<?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();
|
||
|
|
}
|