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#ifndef PCF8574_H_
#define PCF8574_H_
#include <stdint.h>
#include "twi_master.h"
#include "util.h"
/* PCF-8574 chip context. */
struct pcf8574_chip {
/* I2C transfer context. */
struct twi_transfer xfer;
};
void pcf8574_init(struct pcf8574_chip *chip,
uint8_t address, bool chipversion_A,
bool initial_state);
void pcf8574_write(struct pcf8574_chip *chip,
uint8_t write_value);
void pcf8574_wait(struct pcf8574_chip *chip);
uint8_t pcf8574_read(struct pcf8574_chip *chip);
uint8_t pcf8574_write_read(struct pcf8574_chip *chip,
uint8_t write_value);
#endif /* PCF8574_H_ */
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