| Michael Sevakis | 89a38d4 | 2007-03-11 13:59:31 +0000 | [diff] [blame] | 1 | /*************************************************************************** |
| 2 | * __________ __ ___. |
| 3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| 4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| 5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| 6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| 7 | * \/ \/ \/ \/ \/ |
| 8 | * $Id$ |
| 9 | * |
| 10 | * Copyright (C) 2007 by Michael Sevakis |
| 11 | * |
| Daniel Stenberg | 2acc0ac | 2008-06-28 18:10:04 +0000 | [diff] [blame^] | 12 | * This program is free software; you can redistribute it and/or |
| 13 | * modify it under the terms of the GNU General Public License |
| 14 | * as published by the Free Software Foundation; either version 2 |
| 15 | * of the License, or (at your option) any later version. |
| Michael Sevakis | 89a38d4 | 2007-03-11 13:59:31 +0000 | [diff] [blame] | 16 | * |
| 17 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY |
| 18 | * KIND, either express or implied. |
| 19 | * |
| 20 | ****************************************************************************/ |
| 21 | |
| 22 | #ifndef _DS2411_H_ |
| 23 | #define _DS2411_H_ |
| 24 | |
| 25 | #include <stdbool.h> |
| 26 | |
| 27 | /* |
| 28 | * Byte 0: 8-bit family code (always 01h) |
| 29 | * Bytes 1-6: 48-bit serial number |
| 30 | * Byte 7: 8-bit CRC code |
| 31 | */ |
| 32 | struct ds2411_id |
| 33 | { |
| 34 | unsigned char family_code; |
| 35 | unsigned char uid[6]; |
| 36 | unsigned char crc; |
| 37 | } __attribute__((packed)); |
| 38 | |
| 39 | extern int ds2411_read_id(struct ds2411_id *id); |
| 40 | |
| 41 | /* return values */ |
| 42 | enum ds2411_id_return_codes |
| 43 | { |
| 44 | DS2411_NO_PRESENCE = -3, |
| 45 | DS2411_INVALID_FAMILY_CODE, |
| 46 | DS2411_INVALID_CRC, |
| 47 | DS2411_OK = 0, |
| 48 | }; |
| 49 | |
| 50 | #endif /* _DS2411_H_ */ |