Release 4.7 include/linux/i2c-algo-pcf.h

/* ------------------------------------------------------------------------- */
/* adap-pcf.h i2c driver algorithms for PCF8584 adapters                     */
/* ------------------------------------------------------------------------- */
/*   Copyright (C) 1995-97 Simon G. Vogl
                   1998-99 Hans Berglund

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
    MA 02110-1301 USA.                                                       */
/* ------------------------------------------------------------------------- */

/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
   Frodo Looijaard <frodol@dds.nl> */

#ifndef _LINUX_I2C_ALGO_PCF_H

#define _LINUX_I2C_ALGO_PCF_H


struct i2c_algo_pcf_data {
	
void *data;		/* private data for lolevel routines    */
	
void (*setpcf) (void *data, int ctl, int val);
	
int  (*getpcf) (void *data, int ctl);
	
int  (*getown) (void *data);
	
int  (*getclock) (void *data);
	
void (*waitforpin) (void *data);

	
void (*xfer_begin) (void *data);
	
void (*xfer_end) (void *data);

	/* Multi-master lost arbitration back-off delay (msecs)
         * This should be set by the bus adapter or knowledgable client
         * if bus is multi-mastered, else zero
         */
	
unsigned long lab_mdelay;
};

int i2c_pcf_add_bus(struct i2c_adapter *);

#endif /* _LINUX_I2C_ALGO_PCF_H */
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