Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 594 insertions, 0 deletions

diff --git a/include/linux/i2c.h b/include/linux/i2c.h
new file mode 100644
index 000000000000..ebcd745f4cd6
--- /dev/null
+++ b/include/linux/i2c.h
@@ -0,0 +1,594 @@
+/* ------------------------------------------------------------------------- */
+/* 									     */
+/* i2c.h - definitions for the i2c-bus interface			     */
+/* 									     */
+/* ------------------------------------------------------------------------- */
+/*   Copyright (C) 1995-2000 Simon G. Vogl
+
+    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.		     */
+/* ------------------------------------------------------------------------- */
+
+/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and
+   Frodo Looijaard <frodol@dds.nl> */
+
+/* $Id: i2c.h,v 1.68 2003/01/21 08:08:16 kmalkki Exp $ */
+
+#ifndef _LINUX_I2C_H
+#define _LINUX_I2C_H
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/i2c-id.h>
+#include <linux/device.h>	/* for struct device */
+#include <asm/semaphore.h>
+
+/* --- General options ------------------------------------------------	*/
+
+struct i2c_msg;
+struct i2c_algorithm;
+struct i2c_adapter;
+struct i2c_client;
+struct i2c_driver;
+struct i2c_client_address_data;
+union i2c_smbus_data;
+
+/*
+ * The master routines are the ones normally used to transmit data to devices
+ * on a bus (or read from them). Apart from two basic transfer functions to 
+ * transmit one message at a time, a more complex version can be used to 
+ * transmit an arbitrary number of messages without interruption.
+ */
+extern int i2c_master_send(struct i2c_client *,const char* ,int);
+extern int i2c_master_recv(struct i2c_client *,char* ,int);
+
+/* Transfer num messages.
+ */
+extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num);
+
+/*
+ * Some adapter types (i.e. PCF 8584 based ones) may support slave behaviuor. 
+ * This is not tested/implemented yet and will change in the future.
+ */
+extern int i2c_slave_send(struct i2c_client *,char*,int);
+extern int i2c_slave_recv(struct i2c_client *,char*,int);
+
+
+
+/* This is the very generalized SMBus access routine. You probably do not
+   want to use this, though; one of the functions below may be much easier,
+   and probably just as fast. 
+   Note that we use i2c_adapter here, because you do not need a specific
+   smbus adapter to call this function. */
+extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr, 
+                           unsigned short flags,
+                           char read_write, u8 command, int size,
+                           union i2c_smbus_data * data);
+
+/* Now follow the 'nice' access routines. These also document the calling
+   conventions of smbus_access. */
+
+extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value);
+extern s32 i2c_smbus_read_byte(struct i2c_client * client);
+extern s32 i2c_smbus_write_byte(struct i2c_client * client, u8 value);
+extern s32 i2c_smbus_read_byte_data(struct i2c_client * client, u8 command);
+extern s32 i2c_smbus_write_byte_data(struct i2c_client * client,
+                                     u8 command, u8 value);
+extern s32 i2c_smbus_read_word_data(struct i2c_client * client, u8 command);
+extern s32 i2c_smbus_write_word_data(struct i2c_client * client,
+                                     u8 command, u16 value);
+/* Returns the number of bytes transferred */
+extern s32 i2c_smbus_write_block_data(struct i2c_client * client,
+				      u8 command, u8 length,
+				      u8 *values);
+extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client * client,
+					 u8 command, u8 *values);
+
+/*
+ * A driver is capable of handling one or more physical devices present on
+ * I2C adapters. This information is used to inform the driver of adapter
+ * events.
+ */
+
+struct i2c_driver {
+	struct module *owner;
+	char name[32];
+	int id;
+	unsigned int class;
+	unsigned int flags;		/* div., see below		*/
+
+	/* Notifies the driver that a new bus has appeared. This routine
+	 * can be used by the driver to test if the bus meets its conditions
+	 * & seek for the presence of the chip(s) it supports. If found, it 
+	 * registers the client(s) that are on the bus to the i2c admin. via
+	 * i2c_attach_client.
+	 */
+	int (*attach_adapter)(struct i2c_adapter *);
+	int (*detach_adapter)(struct i2c_adapter *);
+
+	/* tells the driver that a client is about to be deleted & gives it 
+	 * the chance to remove its private data. Also, if the client struct
+	 * has been dynamically allocated by the driver in the function above,
+	 * it must be freed here.
+	 */
+	int (*detach_client)(struct i2c_client *);
+	
+	/* a ioctl like command that can be used to perform specific functions
+	 * with the device.
+	 */
+	int (*command)(struct i2c_client *client,unsigned int cmd, void *arg);
+
+	struct device_driver driver;
+	struct list_head list;
+};
+#define to_i2c_driver(d) container_of(d, struct i2c_driver, driver)
+
+#define I2C_NAME_SIZE	50
+
+/*
+ * i2c_client identifies a single device (i.e. chip) that is connected to an 
+ * i2c bus. The behaviour is defined by the routines of the driver. This
+ * function is mainly used for lookup & other admin. functions.
+ */
+struct i2c_client {
+	unsigned int flags;		/* div., see below		*/
+	unsigned int addr;		/* chip address - NOTE: 7bit 	*/
+					/* addresses are stored in the	*/
+					/* _LOWER_ 7 bits of this char	*/
+	/* addr: unsigned int to make lm_sensors i2c-isa adapter work
+	  more cleanly. It does not take any more memory space, due to
+	  alignment considerations */
+	struct i2c_adapter *adapter;	/* the adapter we sit on	*/
+	struct i2c_driver *driver;	/* and our access routines	*/
+	int usage_count;		/* How many accesses currently  */
+					/* to the client		*/
+	struct device dev;		/* the device structure		*/
+	struct list_head list;
+	char name[I2C_NAME_SIZE];
+	struct completion released;
+};
+#define to_i2c_client(d) container_of(d, struct i2c_client, dev)
+
+static inline void *i2c_get_clientdata (struct i2c_client *dev)
+{
+	return dev_get_drvdata (&dev->dev);
+}
+
+static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
+{
+	dev_set_drvdata (&dev->dev, data);
+}
+
+#define I2C_DEVNAME(str)	.name = str
+
+static inline char *i2c_clientname(struct i2c_client *c)
+{
+	return &c->name[0];
+}
+
+/*
+ * The following structs are for those who like to implement new bus drivers:
+ * i2c_algorithm is the interface to a class of hardware solutions which can
+ * be addressed using the same bus algorithms - i.e. bit-banging or the PCF8584
+ * to name two of the most common.
+ */
+struct i2c_algorithm {
+	char name[32];				/* textual description 	*/
+	unsigned int id;
+
+	/* If an adapter algorithm can't do I2C-level access, set master_xfer
+	   to NULL. If an adapter algorithm can do SMBus access, set 
+	   smbus_xfer. If set to NULL, the SMBus protocol is simulated
+	   using common I2C messages */
+	int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs, 
+	                   int num);
+	int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, 
+	                   unsigned short flags, char read_write,
+	                   u8 command, int size, union i2c_smbus_data * data);
+
+	/* --- these optional/future use for some adapter types.*/
+	int (*slave_send)(struct i2c_adapter *,char*,int);
+	int (*slave_recv)(struct i2c_adapter *,char*,int);
+
+	/* --- ioctl like call to set div. parameters. */
+	int (*algo_control)(struct i2c_adapter *, unsigned int, unsigned long);
+
+	/* To determine what the adapter supports */
+	u32 (*functionality) (struct i2c_adapter *);
+};
+
+/*
+ * i2c_adapter is the structure used to identify a physical i2c bus along
+ * with the access algorithms necessary to access it.
+ */
+struct i2c_adapter {
+	struct module *owner;
+	unsigned int id;/* == is algo->id | hwdep.struct->id, 		*/
+			/* for registered values see below		*/
+	unsigned int class;
+	struct i2c_algorithm *algo;/* the algorithm to access the bus	*/
+	void *algo_data;
+
+	/* --- administration stuff. */
+	int (*client_register)(struct i2c_client *);
+	int (*client_unregister)(struct i2c_client *);
+
+	/* data fields that are valid for all devices	*/
+	struct semaphore bus_lock;
+	struct semaphore clist_lock;
+
+	int timeout;
+	int retries;
+	struct device dev;		/* the adapter device */
+	struct class_device class_dev;	/* the class device */
+
+#ifdef CONFIG_PROC_FS 
+	/* No need to set this when you initialize the adapter          */
+	int inode;
+#endif /* def CONFIG_PROC_FS */
+
+	int nr;
+	struct list_head clients;
+	struct list_head list;
+	char name[I2C_NAME_SIZE];
+	struct completion dev_released;
+	struct completion class_dev_released;
+};
+#define dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, dev)
+#define class_dev_to_i2c_adapter(d) container_of(d, struct i2c_adapter, class_dev)
+
+static inline void *i2c_get_adapdata (struct i2c_adapter *dev)
+{
+	return dev_get_drvdata (&dev->dev);
+}
+
+static inline void i2c_set_adapdata (struct i2c_adapter *dev, void *data)
+{
+	dev_set_drvdata (&dev->dev, data);
+}
+
+/*flags for the driver struct: */
+#define I2C_DF_NOTIFY	0x01		/* notify on bus (de/a)ttaches 	*/
+#if 0
+/* this flag is gone -- there is a (optional) driver->detach_adapter
+ * callback now which can be used instead */
+# define I2C_DF_DUMMY	0x02
+#endif
+
+/*flags for the client struct: */
+#define I2C_CLIENT_ALLOW_USE		0x01	/* Client allows access */
+#define I2C_CLIENT_ALLOW_MULTIPLE_USE 	0x02  	/* Allow multiple access-locks */
+						/* on an i2c_client */
+#define I2C_CLIENT_PEC  0x04			/* Use Packet Error Checking */
+#define I2C_CLIENT_TEN	0x10			/* we have a ten bit chip address	*/
+						/* Must equal I2C_M_TEN below */
+
+/* i2c adapter classes (bitmask) */
+#define I2C_CLASS_HWMON		(1<<0)	/* lm_sensors, ... */
+#define I2C_CLASS_TV_ANALOG	(1<<1)	/* bttv + friends */
+#define I2C_CLASS_TV_DIGITAL	(1<<2)	/* dvb cards */
+#define I2C_CLASS_DDC		(1<<3)	/* i2c-matroxfb ? */
+#define I2C_CLASS_CAM_ANALOG	(1<<4)	/* camera with analog CCD */
+#define I2C_CLASS_CAM_DIGITAL	(1<<5)	/* most webcams */
+#define I2C_CLASS_SOUND		(1<<6)	/* sound devices */
+#define I2C_CLASS_ALL		(UINT_MAX) /* all of the above */
+
+/* i2c_client_address_data is the struct for holding default client
+ * addresses for a driver and for the parameters supplied on the
+ * command line
+ */
+struct i2c_client_address_data {
+	unsigned short *normal_i2c;
+	unsigned short *normal_i2c_range;
+	unsigned short *probe;
+	unsigned short *probe_range;
+	unsigned short *ignore;
+	unsigned short *ignore_range;
+	unsigned short *force;
+};
+
+/* Internal numbers to terminate lists */
+#define I2C_CLIENT_END		0xfffeU
+#define I2C_CLIENT_ISA_END	0xfffefffeU
+
+/* The numbers to use to set I2C bus address */
+#define ANY_I2C_BUS		0xffff
+#define ANY_I2C_ISA_BUS		9191
+
+
+/* ----- functions exported by i2c.o */
+
+/* administration...
+ */
+extern int i2c_add_adapter(struct i2c_adapter *);
+extern int i2c_del_adapter(struct i2c_adapter *);
+
+extern int i2c_add_driver(struct i2c_driver *);
+extern int i2c_del_driver(struct i2c_driver *);
+
+extern int i2c_attach_client(struct i2c_client *);
+extern int i2c_detach_client(struct i2c_client *);
+
+/* New function: This is to get an i2c_client-struct for controlling the 
+   client either by using i2c_control-function or having the 
+   client-module export functions that can be used with the i2c_client
+   -struct. */
+extern struct i2c_client *i2c_get_client(int driver_id, int adapter_id, 
+					struct i2c_client *prev);
+
+/* Should be used with new function
+   extern struct i2c_client *i2c_get_client(int,int,struct i2c_client *);
+   to make sure that client-struct is valid and that it is okay to access
+   the i2c-client. 
+   returns -EACCES if client doesn't allow use (default)
+   returns -EBUSY if client doesn't allow multiple use (default) and 
+   usage_count >0 */
+extern int i2c_use_client(struct i2c_client *);
+extern int i2c_release_client(struct i2c_client *);
+
+/* call the i2c_client->command() of all attached clients with
+ * the given arguments */
+extern void i2c_clients_command(struct i2c_adapter *adap,
+				unsigned int cmd, void *arg);
+
+/* returns -EBUSY if address has been taken, 0 if not. Note that the only
+   other place at which this is called is within i2c_attach_client; so
+   you can cheat by simply not registering. Not recommended, of course! */
+extern int i2c_check_addr (struct i2c_adapter *adapter, int addr);
+
+/* Detect function. It iterates over all possible addresses itself.
+ * It will only call found_proc if some client is connected at the
+ * specific address (unless a 'force' matched);
+ */
+extern int i2c_probe(struct i2c_adapter *adapter, 
+		struct i2c_client_address_data *address_data,
+		int (*found_proc) (struct i2c_adapter *, int, int));
+
+/* An ioctl like call to set div. parameters of the adapter.
+ */
+extern int i2c_control(struct i2c_client *,unsigned int, unsigned long);
+
+/* This call returns a unique low identifier for each registered adapter,
+ * or -1 if the adapter was not registered. 
+ */
+extern int i2c_adapter_id(struct i2c_adapter *adap);
+extern struct i2c_adapter* i2c_get_adapter(int id);
+extern void i2c_put_adapter(struct i2c_adapter *adap);
+
+
+/* Return the functionality mask */
+static inline u32 i2c_get_functionality(struct i2c_adapter *adap)
+{
+	return adap->algo->functionality(adap);
+}
+
+/* Return 1 if adapter supports everything we need, 0 if not. */
+static inline int i2c_check_functionality(struct i2c_adapter *adap, u32 func)
+{
+	return (func & i2c_get_functionality(adap)) == func;
+}
+
+/*
+ * I2C Message - used for pure i2c transaction, also from /dev interface
+ */
+struct i2c_msg {
+	__u16 addr;	/* slave address			*/
+ 	__u16 flags;		
+#define I2C_M_TEN	0x10	/* we have a ten bit chip address	*/
+#define I2C_M_RD	0x01
+#define I2C_M_NOSTART	0x4000
+#define I2C_M_REV_DIR_ADDR	0x2000
+#define I2C_M_IGNORE_NAK	0x1000
+#define I2C_M_NO_RD_ACK		0x0800
+ 	__u16 len;		/* msg length				*/
+ 	__u8 *buf;		/* pointer to msg data			*/
+};
+
+/* To determine what functionality is present */
+
+#define I2C_FUNC_I2C			0x00000001
+#define I2C_FUNC_10BIT_ADDR		0x00000002
+#define I2C_FUNC_PROTOCOL_MANGLING	0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */
+#define I2C_FUNC_SMBUS_HWPEC_CALC	0x00000008 /* SMBus 2.0 */
+#define I2C_FUNC_SMBUS_READ_WORD_DATA_PEC  0x00000800 /* SMBus 2.0 */ 
+#define I2C_FUNC_SMBUS_WRITE_WORD_DATA_PEC 0x00001000 /* SMBus 2.0 */ 
+#define I2C_FUNC_SMBUS_PROC_CALL_PEC	0x00002000 /* SMBus 2.0 */
+#define I2C_FUNC_SMBUS_BLOCK_PROC_CALL_PEC 0x00004000 /* SMBus 2.0 */
+#define I2C_FUNC_SMBUS_BLOCK_PROC_CALL	0x00008000 /* SMBus 2.0 */
+#define I2C_FUNC_SMBUS_QUICK		0x00010000 
+#define I2C_FUNC_SMBUS_READ_BYTE	0x00020000 
+#define I2C_FUNC_SMBUS_WRITE_BYTE	0x00040000 
+#define I2C_FUNC_SMBUS_READ_BYTE_DATA	0x00080000 
+#define I2C_FUNC_SMBUS_WRITE_BYTE_DATA	0x00100000 
+#define I2C_FUNC_SMBUS_READ_WORD_DATA	0x00200000 
+#define I2C_FUNC_SMBUS_WRITE_WORD_DATA	0x00400000 
+#define I2C_FUNC_SMBUS_PROC_CALL	0x00800000 
+#define I2C_FUNC_SMBUS_READ_BLOCK_DATA	0x01000000 
+#define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000 
+#define I2C_FUNC_SMBUS_READ_I2C_BLOCK	0x04000000 /* I2C-like block xfer  */
+#define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK	0x08000000 /* w/ 1-byte reg. addr. */
+#define I2C_FUNC_SMBUS_READ_I2C_BLOCK_2	 0x10000000 /* I2C-like block xfer  */
+#define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2 0x20000000 /* w/ 2-byte reg. addr. */
+#define I2C_FUNC_SMBUS_READ_BLOCK_DATA_PEC  0x40000000 /* SMBus 2.0 */
+#define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA_PEC 0x80000000 /* SMBus 2.0 */
+
+#define I2C_FUNC_SMBUS_BYTE (I2C_FUNC_SMBUS_READ_BYTE | \
+                             I2C_FUNC_SMBUS_WRITE_BYTE)
+#define I2C_FUNC_SMBUS_BYTE_DATA (I2C_FUNC_SMBUS_READ_BYTE_DATA | \
+                                  I2C_FUNC_SMBUS_WRITE_BYTE_DATA)
+#define I2C_FUNC_SMBUS_WORD_DATA (I2C_FUNC_SMBUS_READ_WORD_DATA | \
+                                  I2C_FUNC_SMBUS_WRITE_WORD_DATA)
+#define I2C_FUNC_SMBUS_BLOCK_DATA (I2C_FUNC_SMBUS_READ_BLOCK_DATA | \
+                                   I2C_FUNC_SMBUS_WRITE_BLOCK_DATA)
+#define I2C_FUNC_SMBUS_I2C_BLOCK (I2C_FUNC_SMBUS_READ_I2C_BLOCK | \
+                                  I2C_FUNC_SMBUS_WRITE_I2C_BLOCK)
+#define I2C_FUNC_SMBUS_I2C_BLOCK_2 (I2C_FUNC_SMBUS_READ_I2C_BLOCK_2 | \
+                                    I2C_FUNC_SMBUS_WRITE_I2C_BLOCK_2)
+#define I2C_FUNC_SMBUS_BLOCK_DATA_PEC (I2C_FUNC_SMBUS_READ_BLOCK_DATA_PEC | \
+                                       I2C_FUNC_SMBUS_WRITE_BLOCK_DATA_PEC)
+#define I2C_FUNC_SMBUS_WORD_DATA_PEC  (I2C_FUNC_SMBUS_READ_WORD_DATA_PEC | \
+                                       I2C_FUNC_SMBUS_WRITE_WORD_DATA_PEC)
+
+#define I2C_FUNC_SMBUS_READ_BYTE_PEC		I2C_FUNC_SMBUS_READ_BYTE_DATA
+#define I2C_FUNC_SMBUS_WRITE_BYTE_PEC		I2C_FUNC_SMBUS_WRITE_BYTE_DATA
+#define I2C_FUNC_SMBUS_READ_BYTE_DATA_PEC	I2C_FUNC_SMBUS_READ_WORD_DATA
+#define I2C_FUNC_SMBUS_WRITE_BYTE_DATA_PEC	I2C_FUNC_SMBUS_WRITE_WORD_DATA
+#define I2C_FUNC_SMBUS_BYTE_PEC			I2C_FUNC_SMBUS_BYTE_DATA
+#define I2C_FUNC_SMBUS_BYTE_DATA_PEC		I2C_FUNC_SMBUS_WORD_DATA
+
+#define I2C_FUNC_SMBUS_EMUL (I2C_FUNC_SMBUS_QUICK | \
+                             I2C_FUNC_SMBUS_BYTE | \
+                             I2C_FUNC_SMBUS_BYTE_DATA | \
+                             I2C_FUNC_SMBUS_WORD_DATA | \
+                             I2C_FUNC_SMBUS_PROC_CALL | \
+                             I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \
+                             I2C_FUNC_SMBUS_WRITE_BLOCK_DATA_PEC | \
+                             I2C_FUNC_SMBUS_I2C_BLOCK)
+
+/* 
+ * Data for SMBus Messages 
+ */
+#define I2C_SMBUS_BLOCK_MAX	32	/* As specified in SMBus standard */	
+#define I2C_SMBUS_I2C_BLOCK_MAX	32	/* Not specified but we use same structure */
+union i2c_smbus_data {
+	__u8 byte;
+	__u16 word;
+	__u8 block[I2C_SMBUS_BLOCK_MAX + 3]; /* block[0] is used for length */
+                          /* one more for read length in block process call */
+	                                            /* and one more for PEC */
+};
+
+/* smbus_access read or write markers */
+#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 */
+#define I2C_SMBUS_BLOCK_DATA_PEC    8		/* SMBus 2.0 */
+#define I2C_SMBUS_PROC_CALL_PEC     9		/* SMBus 2.0 */
+#define I2C_SMBUS_BLOCK_PROC_CALL_PEC  10	/* SMBus 2.0 */
+#define I2C_SMBUS_WORD_DATA_PEC	   11		/* 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                   */
+#if 0
+#define I2C_ACK_TEST	0x0710	/* See if a slave is at a specific address */
+#endif
+
+#define I2C_SMBUS	0x0720	/* SMBus-level access */
+
+/* ... algo-bit.c recognizes */
+#define I2C_UDELAY	0x0705	/* set delay in microsecs between each	*/
+				/* written byte (except address)	*/
+#define I2C_MDELAY	0x0706	/* millisec delay between written bytes */
+
+/* ----- 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)
+
+/* This is the one you want to use in your own modules */
+#define I2C_CLIENT_INSMOD \
+  I2C_CLIENT_MODULE_PARM(probe, \
+                      "List of adapter,address pairs to scan additionally"); \
+  I2C_CLIENT_MODULE_PARM(probe_range, \
+                      "List of adapter,start-addr,end-addr triples to scan " \
+                      "additionally"); \
+  I2C_CLIENT_MODULE_PARM(ignore, \
+                      "List of adapter,address pairs not to scan"); \
+  I2C_CLIENT_MODULE_PARM(ignore_range, \
+                      "List of adapter,start-addr,end-addr triples not to " \
+                      "scan"); \
+  I2C_CLIENT_MODULE_PARM(force, \
+                      "List of adapter,address pairs to boldly assume " \
+                      "to be present"); \
+	static struct i2c_client_address_data addr_data = {		\
+			.normal_i2c = 		normal_i2c,		\
+			.normal_i2c_range =	normal_i2c_range,	\
+			.probe =		probe,			\
+			.probe_range =		probe_range,		\
+			.ignore =		ignore,			\
+			.ignore_range =		ignore_range,		\
+			.force =		force,			\
+		}
+
+/* Detect whether we are on the isa bus. If this returns true, all i2c
+   access will fail! */
+#define i2c_is_isa_client(clientptr) \
+        ((clientptr)->adapter->algo->id == I2C_ALGO_ISA)
+#define i2c_is_isa_adapter(adapptr) \
+        ((adapptr)->algo->id == I2C_ALGO_ISA)
+
+#endif /* _LINUX_I2C_H */