pca9538.h File Reference

#include <types.h>
#include <device/device.h>

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Macros
#define	INPUT_REG   0x00
#define	OUTPUT_REG   0x01
#define	INPUT_INVERT_REG   0x02
#define	IO_CONFIG_REG   0x03

Functions
uint8_t	pca9538_read_input (void)
void	pca9538_set_output (uint8_t val)
struct device *	pca9538_get_dev (void)

Macro Definition Documentation

INPUT_INVERT_REG

#define INPUT_INVERT_REG   0x02

Definition at line 12 of file pca9538.h.

INPUT_REG

#define INPUT_REG   0x00

Definition at line 10 of file pca9538.h.

IO_CONFIG_REG

#define IO_CONFIG_REG   0x03

Definition at line 13 of file pca9538.h.

OUTPUT_REG

#define OUTPUT_REG   0x01

Definition at line 11 of file pca9538.h.

Function Documentation

pca9538_get_dev()

struct device* pca9538_get_dev

(

void

)

Referenced by pca9538_read_input(), and pca9538_set_output().

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pca9538_read_input()

uint8_t pca9538_read_input

(

void

)

Definition at line 9 of file pca9538.c.

References i2c_dev_readb_at(), INPUT_REG, and pca9538_get_dev().

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pca9538_set_output()

void pca9538_set_output

(

uint8_t

val

)

Definition at line 20 of file pca9538.c.

References i2c_dev_writeb_at(), OUTPUT_REG, pca9538_get_dev(), and val.

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