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#ifndef TW_H
#define TW_H
typedef enum {
TWM_INVALID = 0,
TWM_WRITE,
TWM_READ,
} twMode;
typedef enum {
TWST_WAIT = 0,
TWST_OK = 1,
TWST_ERR = 2,
} twStatus;
#include <stdint.h>
typedef struct {
twMode mode;
uint8_t address;
uint8_t subaddress;
uint8_t step;
/* pointer to read/write data */
uint8_t *data;
/* number of bytes to be read/written */
uint8_t count;
/* current byte */
uint8_t i;
twStatus status;
/* i2c bus status at the time if an error occured */
uint8_t error;
} twReq;
extern volatile twReq twr;
#include <stdbool.h>
void twInit ();
bool twRequest (const twMode mode, const uint8_t address,
const uint8_t subaddress, uint8_t * const data, const uint8_t count);
#endif /* TW_H */
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