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/*
* i2c-smbus.h - SMBus extensions to the I2C protocol
*
* Copyright (C) 2010 Jean Delvare <jdelvare@suse.de>
*
* 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_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 */