ChibiOS Free Embedded RTOS

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/**
 * @name    Macro Functions (BaseBarometer)
 * @{
 */
/**
 * @brief   Barometer get axes number.
 *
 * @param[in] ip        pointer to a @p BaseBarometer class.
 * @return              The number of axes of the BaseSensor
 *
 * @api
 */
#define barometerGetAxesNumber(ip)                                           \
        (ip)->vmt_basebarometer->get_axes_number(ip)

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/**
 * @brief   BaseBarometer specific methods.
 */
#define _base_barometer_methods_alone                                        \
  /* Invoke the get pressure data.*/                                         \
  msg_t (*get_pressure)(void *instance, int32_t pressure[]);

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/**
 * @brief   LSM303DLHC 6-axis accelerometer/compass class.
 */
struct LSM303DLHCDriver {
  /** @brief BaseSensor Virtual Methods Table. */
  const struct BaseSensorVMT *vmt_basesensor;
  /** @brief BaseAccelerometer Virtual Methods Table. */
  const struct BaseAccelerometerVMT *vmt_baseaccelerometer;
  /** @brief BaseCompass Virtual Methods Table. */
  const struct BaseCompassVMT *vmt_basecompass;
  /** @brief LSM303DLHC Accelerometer Virtual Methods Table. */
  const struct LSM303DLHCACCVMT *vmt_lsm303dlhcacc;
  /** @brief LSM303DLHC Compass Virtual Methods Table. */
  const struct LSM303DLHCCOMPVMT *vmt_lsm303dlhccomp;
  _lsm303dlhc_data
};