gpio-pca953x.c File Reference

#include <linux/module.h>
#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/i2c.h>
#include <linux/i2c/pca953x.h>
#include <linux/slab.h>

Go to the source code of this file.

Data Structures
struct	pca953x_chip

Macros
#define	PCA953X_INPUT   0
#define	PCA953X_OUTPUT   1
#define	PCA953X_INVERT   2
#define	PCA953X_DIRECTION   3
#define	REG_ADDR_AI   0x80
#define	PCA957X_IN   0
#define	PCA957X_INVRT   1
#define	PCA957X_BKEN   2
#define	PCA957X_PUPD   3
#define	PCA957X_CFG   4
#define	PCA957X_OUT   5
#define	PCA957X_MSK   6
#define	PCA957X_INTS   7
#define	PCA_GPIO_MASK   0x00FF
#define	PCA_INT   0x0100
#define	PCA953X_TYPE   0x1000
#define	PCA957X_TYPE   0x2000

Functions
	MODULE_DEVICE_TABLE (i2c, pca953x_id)
	subsys_initcall (pca953x_init)
	module_exit (pca953x_exit)
	MODULE_AUTHOR ("eric miao <[email protected]>")
	MODULE_DESCRIPTION ("GPIO expander driver for PCA953x")
	MODULE_LICENSE ("GPL")

Macro Definition Documentation

#define PCA953X_DIRECTION   3

Definition at line 29 of file gpio-pca953x.c.

#define PCA953X_INPUT   0

Definition at line 26 of file gpio-pca953x.c.

#define PCA953X_INVERT   2

Definition at line 28 of file gpio-pca953x.c.

#define PCA953X_OUTPUT   1

Definition at line 27 of file gpio-pca953x.c.

#define PCA953X_TYPE   0x1000

Definition at line 44 of file gpio-pca953x.c.

#define PCA957X_BKEN   2

Definition at line 35 of file gpio-pca953x.c.

#define PCA957X_CFG   4

Definition at line 37 of file gpio-pca953x.c.

#define PCA957X_IN   0

Definition at line 33 of file gpio-pca953x.c.

#define PCA957X_INTS   7

Definition at line 40 of file gpio-pca953x.c.

#define PCA957X_INVRT   1

Definition at line 34 of file gpio-pca953x.c.

#define PCA957X_MSK   6

Definition at line 39 of file gpio-pca953x.c.

#define PCA957X_OUT   5

Definition at line 38 of file gpio-pca953x.c.

#define PCA957X_PUPD   3

Definition at line 36 of file gpio-pca953x.c.

#define PCA957X_TYPE   0x2000

Definition at line 45 of file gpio-pca953x.c.

#define PCA_GPIO_MASK   0x00FF

Definition at line 42 of file gpio-pca953x.c.

#define PCA_INT   0x0100

Definition at line 43 of file gpio-pca953x.c.

#define REG_ADDR_AI   0x80

Definition at line 31 of file gpio-pca953x.c.

Function Documentation

MODULE_AUTHOR

(

"eric miao <[email protected]>"

)

MODULE_DESCRIPTION

(

"GPIO expander driver for PCA953x"

)

MODULE_DEVICE_TABLE	(	i2c	,
		pca953x_id
	)

module_exit

(

pca953x_exit

)

MODULE_LICENSE

(

"GPL"

)

subsys_initcall

(

pca953x_init

)