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51 lines
1.7 KiB
51 lines
1.7 KiB
/* |
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* i2c-smbus.h - SMBus extensions to the I2C protocol |
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* |
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* Copyright (C) 2010 Jean Delvare <jdelvare@suse.de> |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
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* MA 02110-1301 USA. |
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*/ |
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#ifndef _LINUX_I2C_SMBUS_H |
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#define _LINUX_I2C_SMBUS_H |
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#include <linux/i2c.h> |
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/** |
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* i2c_smbus_alert_setup - platform data for the smbus_alert i2c client |
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* @alert_edge_triggered: whether the alert interrupt is edge (1) or level (0) |
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* triggered |
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* @irq: IRQ number, if the smbus_alert driver should take care of interrupt |
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* handling |
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* |
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* If irq is not specified, the smbus_alert driver doesn't take care of |
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* interrupt handling. In that case it is up to the I2C bus driver to either |
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* handle the interrupts or to poll for alerts. |
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* |
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* If irq is specified then it it crucial that alert_edge_triggered is |
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* properly set. |
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*/ |
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struct i2c_smbus_alert_setup { |
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unsigned int alert_edge_triggered:1; |
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int irq; |
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}; |
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struct i2c_client *i2c_setup_smbus_alert(struct i2c_adapter *adapter, |
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struct i2c_smbus_alert_setup *setup); |
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int i2c_handle_smbus_alert(struct i2c_client *ara); |
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#endif /* _LINUX_I2C_SMBUS_H */
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