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#ifndef SPI4_H

#define	SPI4_H

#define SPI4_BUFFER_OUT_SIZE    10

#define SPI4_BUFFER_IN_SIZE     10

typedef struct {

    char buffer_out[SPI4_BUFFER_OUT_SIZE];

    int buffer_out_ind;

    int buffer_out_len;

    char write_blank;

    char buffer_in[SPI4_BUFFER_IN_SIZE];

    int buffer_in_ind;

    int buffer_in_len;

    void (*tx_callback)(void);

    void (*rx_callback)(char, char *);

} SPI4_DATA;

void SPI4_Init(SPI4_DATA *data);

int SPI4_Read(int length, void (*rx_callback)(char, char *));

int SPI4_Write(char *array, int length, void (*tx_callback)(void));

#endif	/* SPI4_H */