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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 | |
22 | /* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even |
23 | Frodo Looijaard <frodol@dds.nl> */ |
24 | |
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); |
34 | void (*waitforpin) (void *data); |
35 | |
36 | void (*xfer_begin) (void *data); |
37 | void (*xfer_end) (void *data); |
38 | |
39 | /* Multi-master lost arbitration back-off delay (msecs) |
40 | * This should be set by the bus adapter or knowledgable client |
41 | * if bus is multi-mastered, else zero |
42 | */ |
43 | unsigned long lab_mdelay; |
44 | }; |
45 | |
46 | int i2c_pcf_add_bus(struct i2c_adapter *); |
47 | |
48 | #endif /* _LINUX_I2C_ALGO_PCF_H */ |
49 |
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v2.6.34-rc5
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