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1 | /* ------------------------------------------------------------------------- */ |
2 | /* adap-pcf.h i2c driver algorithms for PCF8584 adapters */ | |
3 | /* ------------------------------------------------------------------------- */ | |
4 | /* Copyright (C) 1995-97 Simon G. Vogl | |
5 | 1998-99 Hans Berglund | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
20 | /* ------------------------------------------------------------------------- */ | |
21 | ||
121e70b6 | 22 | /* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even |
1da177e4 LT |
23 | Frodo Looijaard <frodol@dds.nl> */ |
24 | ||
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25 | #ifndef _LINUX_I2C_ALGO_PCF_H |
26 | #define _LINUX_I2C_ALGO_PCF_H | |
27 | ||
28 | struct i2c_algo_pcf_data { | |
29 | void *data; /* private data for lolevel routines */ | |
30 | void (*setpcf) (void *data, int ctl, int val); | |
31 | int (*getpcf) (void *data, int ctl); | |
32 | int (*getown) (void *data); | |
33 | int (*getclock) (void *data); | |
438d6c2c | 34 | void (*waitforpin) (void); |
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35 | |
36 | /* local settings */ | |
37 | int udelay; | |
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38 | int timeout; |
39 | }; | |
40 | ||
1da177e4 | 41 | int i2c_pcf_add_bus(struct i2c_adapter *); |
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42 | |
43 | #endif /* _LINUX_I2C_ALGO_PCF_H */ |