sensor_get_supported_sensors()

Updated: October 26, 2022

Retrieve an enumerated list of sensors available on the device

Synopsis:

#include <sensor/sensor_api.h>
sensor_error_t sensor_get_supported_sensors(uint32_t num_asked,
                                            uint32_t type_mask,
                                            uint32_t *num_supported,
                                            supported_sensor_info_t *sensor_info)

Arguments:

num_asked
The maximum number of sensors to return in the array.
type_mask
The type of sensors being queried. This can be any OR'ed combination of sensor_type_t.
num_supported
On success, the memory pointed to by this argument contains the number of supported sensors of the specified type that are present.
sensor_info
A pointer to the first element in a supported_sensor_info_t array. On success, this array is updated with information about all sensors of the specified type that are present.

Library:

libsensor

Description:

This function writes an array of information about supported sensors of a given type.

The sensor_info argument must point to an array which has at least num_asked elements allocated. To find the required size for this array, you can invoke this function with num_asked set to zero or sensor_info set to NULL. The required array size is then written into the memory pointed to by num_supported. You can then allocate an array of this size and invoke this function again with num_asked set to the value previously written into num_supported and sensor_info pointing to the allocated array.

Returns:

SENSOR_EOK when the function successfully completes, otherwise another sensor_error_t value that provides the reason that the call failed.