Analog axis API

Analog axis API. More...

Data Structures
struct	analog_axis_calibration
	Analog axis calibration data structure. More...

Typedefs
typedef void(*	analog_axis_raw_data_t) (const struct device *dev, int channel, int16_t raw_val)
	Analog axis raw data callback.

Functions
void	analog_axis_set_raw_data_cb (const struct device *dev, analog_axis_raw_data_t cb)
	Set a raw data callback.
int	analog_axis_num_axes (const struct device *dev)
	Get the number of defined axes.
int	analog_axis_calibration_get (const struct device *dev, int channel, struct analog_axis_calibration *cal)
	Get the axis calibration data.
int	analog_axis_calibration_set (const struct device *dev, int channel, struct analog_axis_calibration *cal)
	Set the axis calibration data.
int	analog_axis_calibration_save (const struct device *dev)
	Save the calibration data.

Detailed Description

Analog axis API.

Typedef Documentation

analog_axis_raw_data_t

typedef void(* analog_axis_raw_data_t) (const struct device *dev, int channel, int16_t raw_val)

#include <include/zephyr/input/input_analog_axis.h>

Analog axis raw data callback.

Parameters

dev	Analog axis device.
channel	Channel number.
raw_val	Raw value for the channel.

Function Documentation

analog_axis_calibration_get()

int analog_axis_calibration_get	(	const struct device *	dev,
		int	channel,
		struct analog_axis_calibration *	cal
	)

#include <include/zephyr/input/input_analog_axis.h>

Get the axis calibration data.

Parameters

dev	Analog axis device.
channel	Channel number.
cal	Pointer to an analog_axis_calibration structure that is going to get set with the current calibration data.

Return values

0	If successful.
-EINVAL	If the specified channel is not valid.

analog_axis_calibration_save()

int analog_axis_calibration_save

(

const struct device *

dev

)

#include <include/zephyr/input/input_analog_axis_settings.h>

Save the calibration data.

Save the calibration data permanently on the specifided device, requires the Settings subsystem to be configured and initialized.

Parameters

dev	Analog axis device.

Return values

0	If successful.
-errno	In case of any other error.

analog_axis_calibration_set()

int analog_axis_calibration_set	(	const struct device *	dev,
		int	channel,
		struct analog_axis_calibration *	cal
	)

#include <include/zephyr/input/input_analog_axis.h>

Set the axis calibration data.

Parameters

dev	Analog axis device.
channel	Channel number.
cal	Pointer to an analog_axis_calibration structure with the new calibration data

Return values

0	If successful.
-EINVAL	If the specified channel is not valid.

analog_axis_num_axes()

int analog_axis_num_axes

(

const struct device *

dev

)

#include <include/zephyr/input/input_analog_axis.h>

Get the number of defined axes.

Return values

n	The number of defined axes for dev.

analog_axis_set_raw_data_cb()

void analog_axis_set_raw_data_cb	(	const struct device *	dev,
		analog_axis_raw_data_t	cb
	)

#include <include/zephyr/input/input_analog_axis.h>

Set a raw data callback.

Set a callback to receive raw data for the specified analog axis device. This is meant to be use in the application to acquire the data to use for calibration. Set cb to NULL to disable the callback.

Parameters

dev	Analog axis device.
cb	An analog_axis_raw_data_t callback to use, NULL disable.