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