ra8-firmware/ra8__i2c__bus__ops_8h_source.html

#pragma once


#ifdef __cplusplus

extern "C" {

#endif


#include <stdint.h>


#include "ra8_err.h"


typedef struct {

  ra8_err_t (*write)(void* ctx, uint8_t addr, const uint8_t* data, uint32_t len, bool send_stop);


  ra8_err_t (*read)(void* ctx, uint8_t addr, uint8_t* data, uint32_t len);


  ra8_err_t (*transfer)(void*          ctx,

                        uint8_t        addr,

                        const uint8_t* wr,

                        uint32_t       wr_len,

                        uint8_t*       rd,

                        uint32_t       rd_len);


  void* ctx;

} ra8_i2c_bus_ops_t;


#ifdef __cplusplus

}

#endif

write
-proof

ra8_err.h
Error Code Definitions for ra8-firmware.

ra8_err_t
ra8_err_codes_t ra8_err_t
Canonical error-return type used by every ra8-firmware API.
Definition ra8_err.h:546

ra8_i2c_bus_ops_t
Caller-filled I2C controller-transfer seam (write / read / write-then-read).
Definition ra8_i2c_bus_ops.h:78

ra8_i2c_bus_ops_t::read
ra8_err_t(* read)(void *ctx, uint8_t addr, uint8_t *data, uint32_t len)
Controller read of len bytes from 7-bit address addr.
Definition ra8_i2c_bus_ops.h:112

ra8_i2c_bus_ops_t::ctx
void * ctx
Opaque cookie handed to every callback (binder-owned).
Definition ra8_i2c_bus_ops.h:138

ra8_i2c_bus_ops_t::transfer
ra8_err_t(* transfer)(void *ctx, uint8_t addr, const uint8_t *wr, uint32_t wr_len, uint8_t *rd, uint32_t rd_len)
Combined write-then-RESTART-then-read in one transaction.
Definition ra8_i2c_bus_ops.h:131