Tag
Hash :
114f9fd2
Author :
Date :
2014-06-03T18:47:29
#ifndef I2C_CONTEXT_H
#define I2C_CONTEXT_H
#include <stdbool.h>
#include <stdint.h>
/* common i2c context */
struct i2c_ctx {
/* destructor */
void (*exit)(struct i2c_ctx *ctx);
/* write one byte to given register */
bool (*write)(struct i2c_ctx *ctx, uint8_t reg, uint8_t val);
/* read one byte from given register */
bool (*read)(struct i2c_ctx *ctx, uint8_t reg, uint8_t *val);
/* common data */
uint8_t addr;
int file;
};
/* the default I2C bus on RPi */
#define I2C_BUS "/dev/i2c-1"
extern struct i2c_ctx *i2c_slave_open(char *i2c_bus, uint8_t slave_addr);
#endif /* I2C_CONTEXT_H */