21 lines
568 B
C
21 lines
568 B
C
#ifndef __USER_SPI_DRIVER_H
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#define __USER_SPI_DRIVER_H
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#include <stdint.h>
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typedef enum { USER_SPI_OK, USER_SPI_ERROR } user_spi_ret_t;
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typedef struct {
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int spidev_fd;
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uint32_t speed_hz;
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} user_spi_driver_t;
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#define SPIDEV_MAX_TRANSFER_SIZE 4096
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user_spi_ret_t user_spi_driver_init(user_spi_driver_t *spi, char *path, uint32_t speed_hz);
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user_spi_ret_t user_spi_driver_deinit(user_spi_driver_t *spi);
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user_spi_ret_t user_spi_driver_xfer(user_spi_driver_t *spi, uint8_t *tx_buf,
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uint8_t *rx_buf, uint32_t len);
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#endif
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