at24.c File Reference

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/mutex.h>
#include <linux/sysfs.h>
#include <linux/mod_devicetable.h>
#include <linux/log2.h>
#include <linux/bitops.h>
#include <linux/jiffies.h>
#include <linux/of.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>

Go to the source code of this file.

Data Structures
struct	at24_data

Macros
#define	AT24_SIZE_BYTELEN   5
#define	AT24_SIZE_FLAGS   8
#define	AT24_BITMASK(x)   (BIT(x) - 1)
#define	AT24_DEVICE_MAGIC(_len, _flags)

Functions
	module_param (io_limit, uint, 0)
	MODULE_PARM_DESC (io_limit,"Maximum bytes per I/O (default 128)")
	module_param (write_timeout, uint, 0)
	MODULE_PARM_DESC (write_timeout,"Time (in ms) to try writes (default 25)")
	MODULE_DEVICE_TABLE (i2c, at24_ids)
	module_init (at24_init)
	module_exit (at24_exit)
	MODULE_DESCRIPTION ("Driver for most I2C EEPROMs")
	MODULE_AUTHOR ("David Brownell and Wolfram Sang")
	MODULE_LICENSE ("GPL")

Macro Definition Documentation

#define AT24_BITMASK

(

x

)

(BIT(x) - 1)

Definition at line 102 of file at24.c.

#define AT24_DEVICE_MAGIC	(		_len,
			_flags
	)

Value:

((1 << AT24_SIZE_FLAGS | (_flags))      \
        << AT24_SIZE_BYTELEN | ilog2(_len))

Definition at line 105 of file at24.c.

#define AT24_SIZE_BYTELEN   5

Definition at line 99 of file at24.c.

#define AT24_SIZE_FLAGS   8

Definition at line 100 of file at24.c.

Function Documentation

MODULE_AUTHOR

(

"David Brownell and Wolfram Sang"

)

MODULE_DESCRIPTION

(

"Driver for most I2C EEPROMs"

)

MODULE_DEVICE_TABLE	(	i2c	,
		at24_ids
	)

module_exit

(

at24_exit

)

module_init

(

at24_init

)

MODULE_LICENSE

(

"GPL"

)

module_param	(	io_limit	,
		uint	,
		0
	)

module_param	(	write_timeout	,
		uint	,
		0
	)

MODULE_PARM_DESC	(	io_limit	,
		"Maximum bytes per I/O (default 128)"
	)

MODULE_PARM_DESC	(	write_timeout	,
		"Time (in ms) to try writes (default 25)"
	)