diff options
Diffstat (limited to 'firmware/export')
-rw-r--r-- | firmware/export/ds2411.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/firmware/export/ds2411.h b/firmware/export/ds2411.h new file mode 100644 index 0000000000..c55579cba5 --- /dev/null +++ b/firmware/export/ds2411.h | |||
@@ -0,0 +1,48 @@ | |||
1 | /*************************************************************************** | ||
2 | * __________ __ ___. | ||
3 | * Open \______ \ ____ ____ | | _\_ |__ _______ ___ | ||
4 | * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / | ||
5 | * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < | ||
6 | * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ | ||
7 | * \/ \/ \/ \/ \/ | ||
8 | * $Id$ | ||
9 | * | ||
10 | * Copyright (C) 2007 by Michael Sevakis | ||
11 | * | ||
12 | * All files in this archive are subject to the GNU General Public License. | ||
13 | * See the file COPYING in the source tree root for full license agreement. | ||
14 | * | ||
15 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY | ||
16 | * KIND, either express or implied. | ||
17 | * | ||
18 | ****************************************************************************/ | ||
19 | |||
20 | #ifndef _DS2411_H_ | ||
21 | #define _DS2411_H_ | ||
22 | |||
23 | #include <stdbool.h> | ||
24 | |||
25 | /* | ||
26 | * Byte 0: 8-bit family code (always 01h) | ||
27 | * Bytes 1-6: 48-bit serial number | ||
28 | * Byte 7: 8-bit CRC code | ||
29 | */ | ||
30 | struct ds2411_id | ||
31 | { | ||
32 | unsigned char family_code; | ||
33 | unsigned char uid[6]; | ||
34 | unsigned char crc; | ||
35 | } __attribute__((packed)); | ||
36 | |||
37 | extern int ds2411_read_id(struct ds2411_id *id); | ||
38 | |||
39 | /* return values */ | ||
40 | enum ds2411_id_return_codes | ||
41 | { | ||
42 | DS2411_NO_PRESENCE = -3, | ||
43 | DS2411_INVALID_FAMILY_CODE, | ||
44 | DS2411_INVALID_CRC, | ||
45 | DS2411_OK = 0, | ||
46 | }; | ||
47 | |||
48 | #endif /* _DS2411_H_ */ | ||