spi.h

 
#ifndef _RTDM_UAPI_SPI_H
#define _RTDM_UAPI_SPI_H
 
#include <linux/types.h>
 
struct rtdm_spi_config {
        __u32 speed_hz;
        __u16 mode;
        __u8 bits_per_word;
};
 
struct rtdm_spi_iobufs {
        __u32 io_len;
        __u32 i_offset;
        __u32 o_offset;
        __u32 map_len;
};
 
#define SPI_RTIOC_SET_CONFIG            _IOW(RTDM_CLASS_SPI, 0, struct rtdm_spi_config)
#define SPI_RTIOC_GET_CONFIG            _IOR(RTDM_CLASS_SPI, 1, struct rtdm_spi_config)
#define SPI_RTIOC_SET_IOBUFS            _IOR(RTDM_CLASS_SPI, 2, struct rtdm_spi_iobufs)
#define SPI_RTIOC_TRANSFER              _IO(RTDM_CLASS_SPI, 3)
#define SPI_RTIOC_TRANSFER_N            _IOR(RTDM_CLASS_SPI, 4, int)
 
#endif /* !_RTDM_UAPI_SPI_H */