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@@ -1,7 +1,7 @@
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/* ------------------------------------------------------------------------- */
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-/* */
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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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/* ------------------------------------------------------------------------- */
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/* Copyright (C) 1995-2000 Simon G. Vogl
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@@ -27,7 +27,7 @@
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#define _LINUX_I2C_H
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#include <linux/types.h>
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-#ifdef __KERNEL__
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+#ifdef __KERNEL__
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#include <linux/module.h>
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#include <linux/i2c-id.h>
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#include <linux/mod_devicetable.h>
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@@ -53,8 +53,8 @@ union i2c_smbus_data;
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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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+ * 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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@@ -67,10 +67,10 @@ extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
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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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+ 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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+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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@@ -112,14 +112,14 @@ struct i2c_driver {
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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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+ * & 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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- /* tells the driver that a client is about to be deleted & gives it
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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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@@ -139,13 +139,13 @@ struct i2c_driver {
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#define I2C_NAME_SIZE 50
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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_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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+ 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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@@ -182,14 +182,14 @@ static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
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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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+ 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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/* master_xfer should return the number of messages successfully
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processed, or a negative value on error */
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- int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs,
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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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+ 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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@@ -317,7 +317,7 @@ extern int i2c_check_addr (struct i2c_adapter *adapter, int addr);
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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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+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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@@ -353,15 +353,15 @@ static inline int i2c_adapter_id(struct i2c_adapter *adap)
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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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+ __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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+ __u16 len; /* msg length */
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+ __u8 *buf; /* pointer to msg data */
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};
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/* To determine what functionality is present */
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@@ -371,16 +371,16 @@ struct i2c_msg {
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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_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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@@ -407,10 +407,10 @@ struct i2c_msg {
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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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- * Data for SMBus Messages
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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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+#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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@@ -422,11 +422,11 @@ union i2c_smbus_data {
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#define I2C_SMBUS_READ 1
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#define I2C_SMBUS_WRITE 0
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-/* SMBus transaction types (size parameter in the above functions)
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+/* SMBus transaction types (size parameter in the above functions)
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Note: these no longer correspond to the (arbitrary) PIIX4 internal codes! */
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#define I2C_SMBUS_QUICK 0
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#define I2C_SMBUS_BYTE 1
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-#define I2C_SMBUS_BYTE_DATA 2
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+#define I2C_SMBUS_BYTE_DATA 2
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#define I2C_SMBUS_WORD_DATA 3
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#define I2C_SMBUS_PROC_CALL 4
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#define I2C_SMBUS_BLOCK_DATA 5
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@@ -435,15 +435,15 @@ union i2c_smbus_data {
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/* ----- commands for the ioctl like i2c_command call:
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- * note that additional calls are defined in the algorithm and hw
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- * dependent layers - these can be listed here, or see the
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+ * note that additional calls are defined in the algorithm and hw
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+ * dependent layers - these can be listed here, or see the
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* corresponding header files.
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*/
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/* -> bit-adapter specific ioctls */
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#define I2C_RETRIES 0x0701 /* number of times a device address */
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/* should be polled when not */
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- /* acknowledging */
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-#define I2C_TIMEOUT 0x0702 /* set timeout - call with int */
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+ /* acknowledging */
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+#define I2C_TIMEOUT 0x0702 /* set timeout - call with int */
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/* this is for i2c-dev.c */
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David Brownell