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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2007 by Michael Sevakis
*
* 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 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef _DS2411_H_
#define _DS2411_H_
#include <stdbool.h>
/*
* Byte 0: 8-bit family code (always 01h)
* Bytes 1-6: 48-bit serial number
* Byte 7: 8-bit CRC code
*/
struct ds2411_id
{
unsigned char family_code;
unsigned char uid[6];
unsigned char crc;
} __attribute__((packed));
extern int ds2411_read_id(struct ds2411_id *id);
/* return values */
enum ds2411_id_return_codes
{
DS2411_NO_PRESENCE = -3,
DS2411_INVALID_FAMILY_CODE,
DS2411_INVALID_CRC,
DS2411_OK = 0,
};
#endif /* _DS2411_H_ */
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