[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / i2c-mux.h

/*
 *
 * i2c-mux.h - functions for the i2c-bus mux support
 *
 * Copyright (c) 2008-2009 Rodolfo Giometti <giometti@linux.it>
 * Copyright (c) 2008-2009 Eurotech S.p.A. <info@eurotech.it>
 * Michael Lawnick <michael.lawnick.ext@nsn.com>
 *
 * 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.
 */

#ifndef _LINUX_I2C_MUX_H
#define _LINUX_I2C_MUX_H

#ifdef __KERNEL__

/*
 * Called to create a i2c bus on a multiplexed bus segment.
 * The mux_dev and chan_id parameters are passed to the select
 * and deselect callback functions to perform hardware-specific
 * mux control.
 */
struct i2c_adapter *i2c_add_mux_adapter(struct i2c_adapter *parent,
				struct device *mux_dev,
				void *mux_priv, u32 force_nr, u32 chan_id,
				unsigned int class,
				int (*select) (struct i2c_adapter *,
					       void *mux_dev, u32 chan_id),
				int (*deselect) (struct i2c_adapter *,
						 void *mux_dev, u32 chan_id));

void i2c_del_mux_adapter(struct i2c_adapter *adap);

#endif /* __KERNEL__ */

#endif /* _LINUX_I2C_MUX_H */
Commit	Line	Data
0826374b ML	1	/*
	2	*
	3	* i2c-mux.h - functions for the i2c-bus mux support
	4	*
	5	* Copyright (c) 2008-2009 Rodolfo Giometti <giometti@linux.it>
	6	* Copyright (c) 2008-2009 Eurotech S.p.A. <info@eurotech.it>
	7	* Michael Lawnick <michael.lawnick.ext@nsn.com>
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
5694f8a8 JD	21	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
5694f8a8 JD	22	* MA 02110-1301 USA.
0826374b ML	23	*/
	24
	25	#ifndef _LINUX_I2C_MUX_H
	26	#define _LINUX_I2C_MUX_H
	27
	28	#ifdef __KERNEL__
	29
	30	/*
	31	* Called to create a i2c bus on a multiplexed bus segment.
	32	* The mux_dev and chan_id parameters are passed to the select
	33	* and deselect callback functions to perform hardware-specific
	34	* mux control.
	35	*/
	36	struct i2c_adapter i2c_add_mux_adapter(struct i2c_adapter parent,
5a3ecd5f DD	37	struct device *mux_dev,
5a3ecd5f DD	38	void *mux_priv, u32 force_nr, u32 chan_id,
eee543e8	39	unsigned int class,
0826374b ML	40	int (select) (struct i2c_adapter ,
	41	void *mux_dev, u32 chan_id),
	42	int (deselect) (struct i2c_adapter ,
	43	void *mux_dev, u32 chan_id));
	44
51d95709	45	void i2c_del_mux_adapter(struct i2c_adapter *adap);
0826374b ML	46
	47	#endif /* __KERNEL__ */
	48
	49	#endif /* _LINUX_I2C_MUX_H */