[net-next-2.6.git] / include / linux / i2c-smbus.h

/*
 * i2c-smbus.h - SMBus extensions to the I2C protocol
 *
 * Copyright (C) 2010 Jean Delvare <khali@linux-fr.org>
 *
 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef _LINUX_I2C_SMBUS_H
#define _LINUX_I2C_SMBUS_H

#include <linux/i2c.h>


/**
 * i2c_smbus_alert_setup - platform data for the smbus_alert i2c client
 * @alert_edge_triggered: whether the alert interrupt is edge (1) or level (0)
 *		triggered
 * @irq: IRQ number, if the smbus_alert driver should take care of interrupt
 *		handling
 *
 * If irq is not specified, the smbus_alert driver doesn't take care of
 * interrupt handling. In that case it is up to the I2C bus driver to either
 * handle the interrupts or to poll for alerts.
 *
 * If irq is specified then it it crucial that alert_edge_triggered is
 * properly set.
 */
struct i2c_smbus_alert_setup {
	unsigned int		alert_edge_triggered:1;
	int			irq;
};

struct i2c_client *i2c_setup_smbus_alert(struct i2c_adapter *adapter,
					 struct i2c_smbus_alert_setup *setup);
int i2c_handle_smbus_alert(struct i2c_client *ara);

#endif /* _LINUX_I2C_SMBUS_H */
Commit	Line	Data
b5527a77 JD	1	/*
	2	* i2c-smbus.h - SMBus extensions to the I2C protocol
	3	*
	4	* Copyright (C) 2010 Jean Delvare <khali@linux-fr.org>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	19	*/
	20
	21	#ifndef _LINUX_I2C_SMBUS_H
	22	#define _LINUX_I2C_SMBUS_H
	23
	24	#include <linux/i2c.h>
	25
	26
	27	/**
	28	* i2c_smbus_alert_setup - platform data for the smbus_alert i2c client
	29	* @alert_edge_triggered: whether the alert interrupt is edge (1) or level (0)
	30	* triggered
	31	* @irq: IRQ number, if the smbus_alert driver should take care of interrupt
	32	* handling
	33	*
	34	* If irq is not specified, the smbus_alert driver doesn't take care of
	35	* interrupt handling. In that case it is up to the I2C bus driver to either
	36	* handle the interrupts or to poll for alerts.
	37	*
	38	* If irq is specified then it it crucial that alert_edge_triggered is
	39	* properly set.
	40	*/
	41	struct i2c_smbus_alert_setup {
	42	unsigned int alert_edge_triggered:1;
	43	int irq;
	44	};
	45
	46	struct i2c_client i2c_setup_smbus_alert(struct i2c_adapter adapter,
	47	struct i2c_smbus_alert_setup *setup);
	48	int i2c_handle_smbus_alert(struct i2c_client *ara);
	49
	50	#endif /* _LINUX_I2C_SMBUS_H */