pi_spi.h

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#ifndef PI_SPI_H
#define PI_SPI_H

#include <linux/spi/spidev.h>
#include <inttypes.h>

// Default config for the SPI module
#define SPI_DEFAULT_MODE    0   
#define SPI_DEFAULT_BPW     8
#define SPI_DEFAULT_SPEED   1000000
#define SPI_DEFAULT_DELAY   10

// Function Prototypes
int spi_init (uint8_t channel);
int spi_config (int fd, uint8_t mode, uint8_t bits, uint32_t speed, uint16_t delay);
int spi_config_default (int fd);
int spi_transfer (int fd, uint8_t txbuf[], uint8_t rxbuf[], uint8_t len);

#endif