1 /* ------------------------------------------------------------------------- */
2 /* adap-pcf.h i2c driver algorithms for PCF8584 adapters */
3 /* ------------------------------------------------------------------------- */
4 /* Copyright (C) 1995-97 Simon G. Vogl
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.
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.
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 /* ------------------------------------------------------------------------- */
22 /* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
23 Frodo Looijaard <frodol@dds.nl> */
25 /* $Id: i2c-algo-pcf.h,v 1.1.1.1 2005/04/11 02:51:02 jack Exp $ */
27 #ifndef I2C_ALGO_PCF_H
28 #define I2C_ALGO_PCF_H 1
30 /* --- Defines for pcf-adapters --------------------------------------- */
31 #include <linux/i2c.h>
33 struct i2c_algo_pcf_data {
34 void *data; /* private data for lolevel routines */
35 void (*setpcf) (void *data, int ctl, int val);
36 int (*getpcf) (void *data, int ctl);
37 int (*getown) (void *data);
38 int (*getclock) (void *data);
39 void (*waitforpin) (void);
47 #define I2C_PCF_ADAP_MAX 16
49 int i2c_pcf_add_bus(struct i2c_adapter *);
50 int i2c_pcf_del_bus(struct i2c_adapter *);
52 #endif /* I2C_ALGO_PCF_H */