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crc16-ccitt.h

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  • Forked from card10 / firmware
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    crc16-ccitt.h 1.73 KiB
    /*	
     * Copyright 2001-2010 Georges Menie (www.menie.org)
     * All rights reserved.
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions are met:
     *
     *     * Redistributions of source code must retain the above copyright
     *       notice, this list of conditions and the following disclaimer.
     *     * Redistributions in binary form must reproduce the above copyright
     *       notice, this list of conditions and the following disclaimer in the
     *       documentation and/or other materials provided with the distribution.
     *     * Neither the name of the University of California, Berkeley nor the
     *       names of its contributors may be used to endorse or promote products
     *       derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
     * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
     * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     */
    
    #ifndef _CRC16_H_
    #define _CRC16_H_
    
    
    #include <stdint.h>
    unsigned short crc16_ccitt(uint16_t oldcrc, const void *buf, int len);
    
    #endif /* _CRC16_H_ */