text: /* ST Microelectronics LSM6DSO 6-axis IMU sensor driver
   *
   * Copyright (c) 2019 STMicroelectronics
   *
   * SPDX-License-Identifier: Apache-2.0
   *
   * Datasheet:
   * https://www.st.com/resource/en/datasheet/lsm6dso.pdf
   */
  
  #include <string.h>
  #include <drivers/i2c.h>
  #include <logging/log.h>
  
  #include "lsm6dso.h"
  
  #ifdef DT_ST_LSM6DSO_BUS_I2C
  
  LOG_MODULE_DECLARE(LSM6DSO, CONFIG_SENSOR_LOG_LEVEL);
  
  static int lsm6dso_i2c_read(struct device *dev, u8_t reg_addr,
  			    u8_t *value, u8_t len)
  {
  	struct lsm6dso_data *data = dev->driver_data;
  	const struct lsm6dso_config *cfg = dev->config->config_info;
  
  	return i2c_burst_read(data->bus, cfg->i2c_slv_addr,
  			      reg_addr, value, len);
  }
  
  static int lsm6dso_i2c_write(struct device *dev, u8_t reg_addr,
  			     u8_t *value, u8_t len)
  {
  	struct lsm6dso_data *data = dev->driver_data;
  	const struct lsm6dso_config *cfg = dev->config->config_info;
  
  	return i2c_burst_write(data->bus, cfg->i2c_slv_addr,
  			       reg_addr, value, len);
  }
  
  int lsm6dso_i2c_init(struct device *dev)
  {
  	struct lsm6dso_data *data = dev->driver_data;
  
  	data->ctx_i2c.read_reg = (lsm6dso_read_ptr) lsm6dso_i2c_read,
  	data->ctx_i2c.write_reg = (lsm6dso_write_ptr) lsm6dso_i2c_write,
  
  	data->ctx = &data->ctx_i2c;
  	data->ctx->handle = dev;
  
  	return 0;
  }
  #endif /* DT_ST_LSM6DSO_BUS_I2C */
  