Synopsis

typedef struct {
  CTL_TRANSPORT_t transport;
  CTL_STATUS_t (*measure)(CTL_ACCELEROMETER_s *, float *);
  CTL_STATUS_t (*set_range)(CTL_ACCELEROMETER_s *, int);
  CTL_STATUS_t (*set_bandwidth)(CTL_ACCELEROMETER_s *, float);
  float bias[];
  float gain[];
  int range;
  float bandwidth;
  void *extra;
  unsigned __mode;
} CTL_ACCELEROMETER_t;

Description

CTL_ACCELEROMETER_t is an abstract accelerometer interface that provides clients with a means to set the range and bandwidth of the accelerometer and to sample acceleration in up to three axes.

Structure

transport

The underlying transport for the accelerometer which provides, typically, an I2C or SPI connection to the device and a means to read one or more registers from the device.

bias

The zero offset for the x, y, and z axes, in g. Client software may alter these to provide more accurate calibration of the accelerometer.

gain

The gain for the x, y, and z axes, in g per count. Client software may alter these to provide more accurate calibration of the accelerometer.

range

Current range selected for the accelerometer, in g, and is read only.

bandwidth

Current bandwidth selected for the accelerometer, in hertz, and is read only.

extra

Client-side data. You can use this to store additional information relating to the accelerometer instance.

__mode

Private working storage for the driver.

measure

Method to sample the x, y, and z axes of the accelerometer.

set_range

Method to set the range of the accelerometer.

set_bandwidth

Method to set the bandwidth of the accelerometer.