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			650 lines
		
	
	
	
		
			25 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			650 lines
		
	
	
	
		
			25 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /* ------------------------------------------------------------------------- */
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| /* 									     */
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| /* i2c.h - definitions for the i2c-bus interface			     */
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| /* 									     */
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| /* ------------------------------------------------------------------------- */
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| /*   Copyright (C) 1995-2000 Simon G. Vogl
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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., 675 Mass Ave, Cambridge, MA 02139, USA.		     */
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| /* ------------------------------------------------------------------------- */
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| 
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| /* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and
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|    Frodo Looijaard <frodol@dds.nl> */
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| 
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| #ifndef _LINUX_I2C_H
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| #define _LINUX_I2C_H
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| 
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| #include <linux/module.h>
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| #include <linux/types.h>
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| #include <linux/i2c-id.h>
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| #include <linux/mod_devicetable.h>
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| #include <linux/device.h>	/* for struct device */
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| #include <linux/sched.h>	/* for completion */
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| #include <asm/semaphore.h>
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| 
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| /* --- For i2c-isa ---------------------------------------------------- */
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| 
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| extern void i2c_adapter_dev_release(struct device *dev);
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| extern struct device_driver i2c_adapter_driver;
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| extern struct class i2c_adapter_class;
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| extern struct bus_type i2c_bus_type;
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| 
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| /* --- General options ------------------------------------------------	*/
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| 
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| struct i2c_msg;
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| struct i2c_algorithm;
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| struct i2c_adapter;
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| struct i2c_client;
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| struct i2c_driver;
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| union i2c_smbus_data;
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| 
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| /*
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|  * The master routines are the ones normally used to transmit data to devices
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|  * on a bus (or read from them). Apart from two basic transfer functions to 
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|  * transmit one message at a time, a more complex version can be used to 
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|  * transmit an arbitrary number of messages without interruption.
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|  */
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| extern int i2c_master_send(struct i2c_client *,const char* ,int);
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| extern int i2c_master_recv(struct i2c_client *,char* ,int);
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| 
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| /* Transfer num messages.
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|  */
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| extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num);
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| 
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| /*
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|  * Some adapter types (i.e. PCF 8584 based ones) may support slave behaviuor. 
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|  * This is not tested/implemented yet and will change in the future.
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|  */
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| extern int i2c_slave_send(struct i2c_client *,char*,int);
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| extern int i2c_slave_recv(struct i2c_client *,char*,int);
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| 
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| 
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| 
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| /* This is the very generalized SMBus access routine. You probably do not
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|    want to use this, though; one of the functions below may be much easier,
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|    and probably just as fast. 
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|    Note that we use i2c_adapter here, because you do not need a specific
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|    smbus adapter to call this function. */
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| extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr, 
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|                            unsigned short flags,
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|                            char read_write, u8 command, int size,
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|                            union i2c_smbus_data * data);
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| 
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| /* Now follow the 'nice' access routines. These also document the calling
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|    conventions of smbus_access. */
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| 
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| extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value);
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| extern s32 i2c_smbus_read_byte(struct i2c_client * client);
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| extern s32 i2c_smbus_write_byte(struct i2c_client * client, u8 value);
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| extern s32 i2c_smbus_read_byte_data(struct i2c_client * client, u8 command);
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| extern s32 i2c_smbus_write_byte_data(struct i2c_client * client,
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|                                      u8 command, u8 value);
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| extern s32 i2c_smbus_read_word_data(struct i2c_client * client, u8 command);
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| extern s32 i2c_smbus_write_word_data(struct i2c_client * client,
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|                                      u8 command, u16 value);
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| extern s32 i2c_smbus_write_block_data(struct i2c_client * client,
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| 				      u8 command, u8 length,
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| 				      u8 *values);
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| /* Returns the number of read bytes */
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| extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client,
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| 					 u8 command, u8 *values);
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| extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client * client,
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| 					  u8 command, u8 length,
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| 					  u8 *values);
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| 
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| /*
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|  * A driver is capable of handling one or more physical devices present on
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|  * I2C adapters. This information is used to inform the driver of adapter
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|  * events.
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|  *
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|  * The driver.owner field should be set to the module owner of this driver.
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|  * The driver.name field should be set to the name of this driver.
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|  */
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| 
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| struct i2c_driver {
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| 	int id;
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| 	unsigned int class;
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| 
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| 	/* Notifies the driver that a new bus has appeared. This routine
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| 	 * can be used by the driver to test if the bus meets its conditions
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| 	 * & seek for the presence of the chip(s) it supports. If found, it 
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| 	 * registers the client(s) that are on the bus to the i2c admin. via
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| 	 * i2c_attach_client.
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| 	 */
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| 	int (*attach_adapter)(struct i2c_adapter *);
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| 	int (*detach_adapter)(struct i2c_adapter *);
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| 
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| 	/* tells the driver that a client is about to be deleted & gives it 
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| 	 * the chance to remove its private data. Also, if the client struct
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| 	 * has been dynamically allocated by the driver in the function above,
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| 	 * it must be freed here.
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| 	 */
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| 	int (*detach_client)(struct i2c_client *);
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| 	
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| 	/* a ioctl like command that can be used to perform specific functions
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| 	 * with the device.
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| 	 */
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| 	int (*command)(struct i2c_client *client,unsigned int cmd, void *arg);
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| 
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| 	struct device_driver driver;
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| 	struct list_head list;
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| };
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| #define to_i2c_driver(d) container_of(d, struct i2c_driver, driver)
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| 
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| #define I2C_NAME_SIZE	50
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| 
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| /*
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|  * i2c_client identifies a single device (i.e. chip) that is connected to an 
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|  * i2c bus. The behaviour is defined by the routines of the driver. This
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|  * function is mainly used for lookup & other admin. functions.
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|  */
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| struct i2c_client {
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| 	unsigned int flags;		/* div., see below		*/
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| 	unsigned short addr;		/* chip address - NOTE: 7bit 	*/
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| 					/* addresses are stored in the	*/
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| 					/* _LOWER_ 7 bits		*/
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| 	struct i2c_adapter *adapter;	/* the adapter we sit on	*/
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| 	struct i2c_driver *driver;	/* and our access routines	*/
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| 	int usage_count;		/* How many accesses currently  */
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| 					/* to the client		*/
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| 	struct device dev;		/* the device structure		*/
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| 	struct list_head list;
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| 	char name[I2C_NAME_SIZE];
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| 	struct completion released;
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| };
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| #define to_i2c_client(d) container_of(d, struct i2c_client, dev)
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| 
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| static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj)
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| {
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| 	return to_i2c_client(container_of(kobj, struct device, kobj));
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| }
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| 
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| static inline void *i2c_get_clientdata (struct i2c_client *dev)
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| {
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| 	return dev_get_drvdata (&dev->dev);
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| }
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| 
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| static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
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| {
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| 	dev_set_drvdata (&dev->dev, data);
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| }
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| 
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| /*
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|  * The following structs are for those who like to implement new bus drivers:
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|  * i2c_algorithm is the interface to a class of hardware solutions which can
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|  * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584
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|  * to name two of the most common.
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|  */
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| struct i2c_algorithm {
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| 	/* If an adapter algorithm can't do I2C-level access, set master_xfer
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| 	   to NULL. If an adapter algorithm can do SMBus access, set 
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| 	   smbus_xfer. If set to NULL, the SMBus protocol is simulated
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| 	   using common I2C messages */
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| 	int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs, 
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| 	                   int num);
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| 	int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, 
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| 	                   unsigned short flags, char read_write,
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| 	                   u8 command, int size, union i2c_smbus_data * data);
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| 
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| 	/* --- these optional/future use for some adapter types.*/
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| 	int (*slave_send)(struct i2c_adapter *,char*,int);
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| 	int (*slave_recv)(struct i2c_adapter *,char*,int);
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| 
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| 	/* --- ioctl like call to set div. parameters. */
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| 	int (*algo_control)(struct i2c_adapter *, unsigned int, unsigned long);
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| 
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| 	/* To determine what the adapter supports */
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| 	u32 (*functionality) (struct i2c_adapter *);
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| };
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| 
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| /*
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|  * i2c_adapter is the structure used to identify a physical i2c bus along
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|  * with the access algorithms necessary to access it.
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|  */
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| struct i2c_adapter {
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| 	struct module *owner;
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| 	unsigned int id;
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| 	unsigned int class;
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| 	struct i2c_algorithm *algo;/* the algorithm to access the bus	*/
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| 	void *algo_data;
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| 
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| 	/* --- administration stuff. */
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| 	int (*client_register)(struct i2c_client *);
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| 	int (*client_unregister)(struct i2c_client *);
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| 
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| 	/* data fields that are valid for all devices	*/
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| 	struct semaphore bus_lock;
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| 	struct semaphore clist_lock;
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| 
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| 	int timeout;
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| 	int retries;
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| 	struct device dev;		/* the adapter device */
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| 	struct class_device class_dev;	/* the class device */
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| 
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| 	int nr;
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| 	struct list_head clients;
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| 	struct list_head list;
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| 	char name[I2C_NAME_SIZE];
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| 	struct completion dev_released;
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| 	struct completion class_dev_released;
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| };
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| #define dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev)
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| #define class_dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, class_dev)
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| 
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| static inline void *i2c_get_adapdata (struct i2c_adapter *dev)
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| {
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| 	return dev_get_drvdata (&dev->dev);
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| }
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| 
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| static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data)
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| {
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| 	dev_set_drvdata (&dev->dev, data);
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| }
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| 
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| /*flags for the client struct: */
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| #define I2C_CLIENT_PEC  0x04			/* Use Packet Error Checking */
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| #define I2C_CLIENT_TEN	0x10			/* we have a ten bit chip address	*/
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| 						/* Must equal I2C_M_TEN below */
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| 
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| /* i2c adapter classes (bitmask) */
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| #define I2C_CLASS_HWMON		(1<<0)	/* lm_sensors, ... */
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| #define I2C_CLASS_TV_ANALOG	(1<<1)	/* bttv + friends */
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| #define I2C_CLASS_TV_DIGITAL	(1<<2)	/* dvb cards */
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| #define I2C_CLASS_DDC		(1<<3)	/* i2c-matroxfb ? */
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| #define I2C_CLASS_CAM_ANALOG	(1<<4)	/* camera with analog CCD */
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| #define I2C_CLASS_CAM_DIGITAL	(1<<5)	/* most webcams */
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| #define I2C_CLASS_SOUND		(1<<6)	/* sound devices */
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| #define I2C_CLASS_ALL		(UINT_MAX) /* all of the above */
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| 
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| /* i2c_client_address_data is the struct for holding default client
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|  * addresses for a driver and for the parameters supplied on the
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|  * command line
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|  */
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| struct i2c_client_address_data {
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| 	unsigned short *normal_i2c;
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| 	unsigned short *probe;
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| 	unsigned short *ignore;
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| 	unsigned short **forces;
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| };
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| 
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| /* Internal numbers to terminate lists */
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| #define I2C_CLIENT_END		0xfffeU
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| 
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| /* The numbers to use to set I2C bus address */
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| #define ANY_I2C_BUS		0xffff
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| #define ANY_I2C_ISA_BUS		9191
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| 
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| 
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| /* ----- functions exported by i2c.o */
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| 
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| /* administration...
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|  */
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| extern int i2c_add_adapter(struct i2c_adapter *);
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| extern int i2c_del_adapter(struct i2c_adapter *);
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| 
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| extern int i2c_register_driver(struct module *, struct i2c_driver *);
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| extern int i2c_del_driver(struct i2c_driver *);
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| 
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| static inline int i2c_add_driver(struct i2c_driver *driver)
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| {
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| 	return i2c_register_driver(THIS_MODULE, driver);
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| }
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| 
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| extern int i2c_attach_client(struct i2c_client *);
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| extern int i2c_detach_client(struct i2c_client *);
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| 
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| /* Should be used to make sure that client-struct is valid and that it
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|    is okay to access the i2c-client.
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|    returns -ENODEV if client has gone in the meantime */
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| extern int i2c_use_client(struct i2c_client *);
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| extern int i2c_release_client(struct i2c_client *);
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| 
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| /* call the i2c_client->command() of all attached clients with
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|  * the given arguments */
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| extern void i2c_clients_command(struct i2c_adapter *adap,
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| 				unsigned int cmd, void *arg);
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| 
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| /* returns -EBUSY if address has been taken, 0 if not. Note that the only
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|    other place at which this is called is within i2c_attach_client; so
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|    you can cheat by simply not registering. Not recommended, of course! */
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| extern int i2c_check_addr (struct i2c_adapter *adapter, int addr);
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| 
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| /* Detect function. It iterates over all possible addresses itself.
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|  * It will only call found_proc if some client is connected at the
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|  * specific address (unless a 'force' matched);
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|  */
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| extern int i2c_probe(struct i2c_adapter *adapter, 
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| 		struct i2c_client_address_data *address_data,
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| 		int (*found_proc) (struct i2c_adapter *, int, int));
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| 
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| /* An ioctl like call to set div. parameters of the adapter.
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|  */
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| extern int i2c_control(struct i2c_client *,unsigned int, unsigned long);
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| 
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| extern struct i2c_adapter* i2c_get_adapter(int id);
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| extern void i2c_put_adapter(struct i2c_adapter *adap);
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| 
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| 
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| /* Return the functionality mask */
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| static inline u32 i2c_get_functionality(struct i2c_adapter *adap)
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| {
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| 	return adap->algo->functionality(adap);
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| }
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| 
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| /* Return 1 if adapter supports everything we need, 0 if not. */
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| static inline int i2c_check_functionality(struct i2c_adapter *adap, u32 func)
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| {
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| 	return (func & i2c_get_functionality(adap)) == func;
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| }
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| 
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| /* Return id number for a specific adapter */
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| static inline int i2c_adapter_id(struct i2c_adapter *adap)
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| {
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| 	return adap->nr;
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| }
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| 
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| /*
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|  * I2C Message - used for pure i2c transaction, also from /dev interface
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|  */
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| struct i2c_msg {
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| 	__u16 addr;	/* slave address			*/
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|  	__u16 flags;		
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| #define I2C_M_TEN	0x10	/* we have a ten bit chip address	*/
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| #define I2C_M_RD	0x01
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| #define I2C_M_NOSTART	0x4000
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| #define I2C_M_REV_DIR_ADDR	0x2000
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| #define I2C_M_IGNORE_NAK	0x1000
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| #define I2C_M_NO_RD_ACK		0x0800
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|  	__u16 len;		/* msg length				*/
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|  	__u8 *buf;		/* pointer to msg data			*/
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| };
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| 
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| /* To determine what functionality is present */
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| 
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| #define I2C_FUNC_I2C			0x00000001
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| #define I2C_FUNC_10BIT_ADDR		0x00000002
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| #define I2C_FUNC_PROTOCOL_MANGLING	0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */
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| #define I2C_FUNC_SMBUS_HWPEC_CALC	0x00000008 /* SMBus 2.0 */
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| #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL	0x00008000 /* SMBus 2.0 */
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| #define I2C_FUNC_SMBUS_QUICK		0x00010000 
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| #define I2C_FUNC_SMBUS_READ_BYTE	0x00020000 
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| #define I2C_FUNC_SMBUS_WRITE_BYTE	0x00040000 
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| #define I2C_FUNC_SMBUS_READ_BYTE_DATA	0x00080000 
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| #define I2C_FUNC_SMBUS_WRITE_BYTE_DATA	0x00100000 
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| #define I2C_FUNC_SMBUS_READ_WORD_DATA	0x00200000 
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| #define I2C_FUNC_SMBUS_WRITE_WORD_DATA	0x00400000 
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| #define I2C_FUNC_SMBUS_PROC_CALL	0x00800000 
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| #define I2C_FUNC_SMBUS_READ_BLOCK_DATA	0x01000000 
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| #define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000 
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| #define I2C_FUNC_SMBUS_READ_I2C_BLOCK	0x04000000 /* I2C-like block xfer  */
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| #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK	0x08000000 /* w/ 1-byte reg. addr. */
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| #define I2C_FUNC_SMBUS_READ_I2C_BLOCK_2	 0x10000000 /* I2C-like block xfer  */
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| #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2 0x20000000 /* w/ 2-byte reg. addr. */
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| 
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| #define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | \
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|                              I2C_FUNC_SMBUS_WRITE_BYTE)
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| #define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | \
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|                                   I2C_FUNC_SMBUS_WRITE_BYTE_DATA)
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| #define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | \
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|                                   I2C_FUNC_SMBUS_WRITE_WORD_DATA)
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| #define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA | \
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|                                    I2C_FUNC_SMBUS_WRITE_BLOCK_DATA)
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| #define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | \
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|                                   I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)
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| #define I2C_FUNC_SMBUS_I2C_BLOCK_2 (I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 | \
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|                                     I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2)
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| 
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| #define I2C_FUNC_SMBUS_EMUL (I2C_FUNC_SMBUS_QUICK | \
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|                              I2C_FUNC_SMBUS_BYTE | \
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|                              I2C_FUNC_SMBUS_BYTE_DATA | \
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|                              I2C_FUNC_SMBUS_WORD_DATA | \
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|                              I2C_FUNC_SMBUS_PROC_CALL | \
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|                              I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \
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|                              I2C_FUNC_SMBUS_I2C_BLOCK)
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| 
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| /* 
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|  * Data for SMBus Messages 
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|  */
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| #define I2C_SMBUS_BLOCK_MAX	32	/* As specified in SMBus standard */	
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| union i2c_smbus_data {
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| 	__u8 byte;
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| 	__u16 word;
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| 	__u8 block[I2C_SMBUS_BLOCK_MAX + 2]; /* block[0] is used for length */
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| 	                       /* and one more for user-space compatibility */
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| };
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| 
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| /* smbus_access read or write markers */
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| #define I2C_SMBUS_READ	1
 | |
| #define I2C_SMBUS_WRITE	0
 | |
| 
 | |
| /* SMBus transaction types (size parameter in the above functions) 
 | |
|    Note: these no longer correspond to the (arbitrary) PIIX4 internal codes! */
 | |
| #define I2C_SMBUS_QUICK		    0
 | |
| #define I2C_SMBUS_BYTE		    1
 | |
| #define I2C_SMBUS_BYTE_DATA	    2 
 | |
| #define I2C_SMBUS_WORD_DATA	    3
 | |
| #define I2C_SMBUS_PROC_CALL	    4
 | |
| #define I2C_SMBUS_BLOCK_DATA	    5
 | |
| #define I2C_SMBUS_I2C_BLOCK_DATA    6
 | |
| #define I2C_SMBUS_BLOCK_PROC_CALL   7		/* SMBus 2.0 */
 | |
| 
 | |
| 
 | |
| /* ----- commands for the ioctl like i2c_command call:
 | |
|  * note that additional calls are defined in the algorithm and hw 
 | |
|  *	dependent layers - these can be listed here, or see the 
 | |
|  *	corresponding header files.
 | |
|  */
 | |
| 				/* -> bit-adapter specific ioctls	*/
 | |
| #define I2C_RETRIES	0x0701	/* number of times a device address      */
 | |
| 				/* should be polled when not            */
 | |
|                                 /* acknowledging 			*/
 | |
| #define I2C_TIMEOUT	0x0702	/* set timeout - call with int 		*/
 | |
| 
 | |
| 
 | |
| /* this is for i2c-dev.c	*/
 | |
| #define I2C_SLAVE	0x0703	/* Change slave address			*/
 | |
| 				/* Attn.: Slave address is 7 or 10 bits */
 | |
| #define I2C_SLAVE_FORCE	0x0706	/* Change slave address			*/
 | |
| 				/* Attn.: Slave address is 7 or 10 bits */
 | |
| 				/* This changes the address, even if it */
 | |
| 				/* is already taken!			*/
 | |
| #define I2C_TENBIT	0x0704	/* 0 for 7 bit addrs, != 0 for 10 bit	*/
 | |
| 
 | |
| #define I2C_FUNCS	0x0705	/* Get the adapter functionality */
 | |
| #define I2C_RDWR	0x0707	/* Combined R/W transfer (one stop only)*/
 | |
| #define I2C_PEC		0x0708	/* != 0 for SMBus PEC                   */
 | |
| 
 | |
| #define I2C_SMBUS	0x0720	/* SMBus-level access */
 | |
| 
 | |
| /* ----- I2C-DEV: char device interface stuff ------------------------- */
 | |
| 
 | |
| #define I2C_MAJOR	89		/* Device major number		*/
 | |
| 
 | |
| /* These defines are used for probing i2c client addresses */
 | |
| /* The length of the option lists */
 | |
| #define I2C_CLIENT_MAX_OPTS 48
 | |
| 
 | |
| /* Default fill of many variables */
 | |
| #define I2C_CLIENT_DEFAULTS {I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END, \
 | |
|                           I2C_CLIENT_END, I2C_CLIENT_END, I2C_CLIENT_END}
 | |
| 
 | |
| /* I2C_CLIENT_MODULE_PARM creates a module parameter, and puts it in the
 | |
|    module header */
 | |
| 
 | |
| #define I2C_CLIENT_MODULE_PARM(var,desc) \
 | |
|   static unsigned short var[I2C_CLIENT_MAX_OPTS] = I2C_CLIENT_DEFAULTS; \
 | |
|   static unsigned int var##_num; \
 | |
|   module_param_array(var, short, &var##_num, 0); \
 | |
|   MODULE_PARM_DESC(var,desc)
 | |
| 
 | |
| #define I2C_CLIENT_MODULE_PARM_FORCE(name)				\
 | |
| I2C_CLIENT_MODULE_PARM(force_##name,					\
 | |
| 		       "List of adapter,address pairs which are "	\
 | |
| 		       "unquestionably assumed to contain a `"		\
 | |
| 		       # name "' chip")
 | |
| 
 | |
| 
 | |
| #define I2C_CLIENT_INSMOD_COMMON					\
 | |
| I2C_CLIENT_MODULE_PARM(probe, "List of adapter,address pairs to scan "	\
 | |
| 		       "additionally");					\
 | |
| I2C_CLIENT_MODULE_PARM(ignore, "List of adapter,address pairs not to "	\
 | |
| 		       "scan");						\
 | |
| static struct i2c_client_address_data addr_data = {			\
 | |
| 	.normal_i2c	= normal_i2c,					\
 | |
| 	.probe		= probe,					\
 | |
| 	.ignore		= ignore,					\
 | |
| 	.forces		= forces,					\
 | |
| }
 | |
| 
 | |
| /* These are the ones you want to use in your own drivers. Pick the one
 | |
|    which matches the number of devices the driver differenciates between. */
 | |
| #define I2C_CLIENT_INSMOD \
 | |
|   I2C_CLIENT_MODULE_PARM(force, \
 | |
|                       "List of adapter,address pairs to boldly assume " \
 | |
|                       "to be present"); \
 | |
| 	static unsigned short *forces[] = {				\
 | |
| 			force,						\
 | |
| 			NULL						\
 | |
| 		};							\
 | |
| I2C_CLIENT_INSMOD_COMMON
 | |
| 
 | |
| #define I2C_CLIENT_INSMOD_1(chip1)					\
 | |
| enum chips { any_chip, chip1 };						\
 | |
| I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "	\
 | |
| 		       "boldly assume to be present");			\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
 | |
| static unsigned short *forces[] = { force, force_##chip1, NULL };	\
 | |
| I2C_CLIENT_INSMOD_COMMON
 | |
| 
 | |
| #define I2C_CLIENT_INSMOD_2(chip1, chip2)				\
 | |
| enum chips { any_chip, chip1, chip2 };					\
 | |
| I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "	\
 | |
| 		       "boldly assume to be present");			\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
 | |
| static unsigned short *forces[] = { force, force_##chip1,		\
 | |
| 				    force_##chip2, NULL };		\
 | |
| I2C_CLIENT_INSMOD_COMMON
 | |
| 
 | |
| #define I2C_CLIENT_INSMOD_3(chip1, chip2, chip3)			\
 | |
| enum chips { any_chip, chip1, chip2, chip3 };				\
 | |
| I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "	\
 | |
| 		       "boldly assume to be present");			\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip3);					\
 | |
| static unsigned short *forces[] = { force, force_##chip1,		\
 | |
| 				    force_##chip2, force_##chip3,	\
 | |
| 				    NULL };				\
 | |
| I2C_CLIENT_INSMOD_COMMON
 | |
| 
 | |
| #define I2C_CLIENT_INSMOD_4(chip1, chip2, chip3, chip4)			\
 | |
| enum chips { any_chip, chip1, chip2, chip3, chip4 };			\
 | |
| I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "	\
 | |
| 		       "boldly assume to be present");			\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip3);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip4);					\
 | |
| static unsigned short *forces[] = { force, force_##chip1,		\
 | |
| 				    force_##chip2, force_##chip3,	\
 | |
| 				    force_##chip4, NULL};		\
 | |
| I2C_CLIENT_INSMOD_COMMON
 | |
| 
 | |
| #define I2C_CLIENT_INSMOD_5(chip1, chip2, chip3, chip4, chip5)		\
 | |
| enum chips { any_chip, chip1, chip2, chip3, chip4, chip5 };		\
 | |
| I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "	\
 | |
| 		       "boldly assume to be present");			\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip3);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip4);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip5);					\
 | |
| static unsigned short *forces[] = { force, force_##chip1,		\
 | |
| 				    force_##chip2, force_##chip3,	\
 | |
| 				    force_##chip4, force_##chip5,	\
 | |
| 				    NULL };				\
 | |
| I2C_CLIENT_INSMOD_COMMON
 | |
| 
 | |
| #define I2C_CLIENT_INSMOD_6(chip1, chip2, chip3, chip4, chip5, chip6)	\
 | |
| enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6 };	\
 | |
| I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "	\
 | |
| 		       "boldly assume to be present");			\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip3);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip4);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip5);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip6);					\
 | |
| static unsigned short *forces[] = { force, force_##chip1,		\
 | |
| 				    force_##chip2, force_##chip3,	\
 | |
| 				    force_##chip4, force_##chip5,	\
 | |
| 				    force_##chip6, NULL };		\
 | |
| I2C_CLIENT_INSMOD_COMMON
 | |
| 
 | |
| #define I2C_CLIENT_INSMOD_7(chip1, chip2, chip3, chip4, chip5, chip6, chip7) \
 | |
| enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6,	\
 | |
| 	     chip7 };							\
 | |
| I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "	\
 | |
| 		       "boldly assume to be present");			\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip3);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip4);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip5);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip6);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip7);					\
 | |
| static unsigned short *forces[] = { force, force_##chip1,		\
 | |
| 				    force_##chip2, force_##chip3,	\
 | |
| 				    force_##chip4, force_##chip5,	\
 | |
| 				    force_##chip6, force_##chip7,	\
 | |
| 				    NULL };				\
 | |
| I2C_CLIENT_INSMOD_COMMON
 | |
| 
 | |
| #define I2C_CLIENT_INSMOD_8(chip1, chip2, chip3, chip4, chip5, chip6, chip7, chip8) \
 | |
| enum chips { any_chip, chip1, chip2, chip3, chip4, chip5, chip6,	\
 | |
| 	     chip7, chip8 };						\
 | |
| I2C_CLIENT_MODULE_PARM(force, "List of adapter,address pairs to "	\
 | |
| 		       "boldly assume to be present");			\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip1);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip2);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip3);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip4);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip5);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip6);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip7);					\
 | |
| I2C_CLIENT_MODULE_PARM_FORCE(chip8);					\
 | |
| static unsigned short *forces[] = { force, force_##chip1,		\
 | |
| 				    force_##chip2, force_##chip3,	\
 | |
| 				    force_##chip4, force_##chip5,	\
 | |
| 				    force_##chip6, force_##chip7,	\
 | |
| 				    force_##chip8, NULL };		\
 | |
| I2C_CLIENT_INSMOD_COMMON
 | |
| 
 | |
| #endif /* _LINUX_I2C_H */
 | 
