Ubuntu Platform API  2.5.0
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orientation.h File Reference
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Typedefs

typedef void UASensorsOrientation
 Opaque type that models the orientation. More...
 
typedef void(* on_orientation_event_cb )(UASOrientationEvent *event, void *context)
 Callback type used by applications to subscribe to orientation events. More...
 

Functions

UBUNTU_DLL_PUBLIC
UASensorsOrientation
ua_sensors_orientation_new ()
 Create a new object for accessing the orientation sensor. More...
 
UBUNTU_DLL_PUBLIC UStatus ua_sensors_orientation_enable (UASensorsOrientation *sensor)
 Enables the supplied orientation sensor. More...
 
UBUNTU_DLL_PUBLIC UStatus ua_sensors_orientation_disable (UASensorsOrientation *sensor)
 Disables the supplied orientation sensor. More...
 
UBUNTU_DLL_PUBLIC uint32_t ua_sensors_orientation_get_min_delay (UASensorsOrientation *sensor)
 Queries the minimum delay between two readings for the supplied sensor. More...
 
UBUNTU_DLL_PUBLIC UStatus ua_sensors_orientation_get_min_value (UASensorsOrientation *sensor, float *value)
 Queries the minimum value that can be reported by the sensor. More...
 
UBUNTU_DLL_PUBLIC UStatus ua_sensors_orientation_get_max_value (UASensorsOrientation *sensor, float *value)
 Queries the maximum value that can be reported by the sensor. More...
 
UBUNTU_DLL_PUBLIC UStatus ua_sensors_orientation_get_resolution (UASensorsOrientation *sensor, float *value)
 Queries the numeric resolution supported by the sensor. More...
 
UBUNTU_DLL_PUBLIC void ua_sensors_orientation_set_reading_cb (UASensorsOrientation *sensor, on_orientation_event_cb cb, void *ctx)
 Set the callback to be invoked whenever a new sensor reading is available. More...
 
UBUNTU_DLL_PUBLIC UStatus ua_sensors_orientation_set_event_rate (UASensorsOrientation *sensor, uint32_t rate)
 Set the sensor event delivery rate in nanoseconds.. More...
 

Typedef Documentation

typedef void(* on_orientation_event_cb)(UASOrientationEvent *event, void *context)

Callback type used by applications to subscribe to orientation events.

Definition at line 41 of file orientation.h.

typedef void UASensorsOrientation

Opaque type that models the orientation.

Definition at line 35 of file orientation.h.

Function Documentation

UBUNTU_DLL_PUBLIC UStatus ua_sensors_orientation_disable ( UASensorsOrientation sensor)

Disables the supplied orientation sensor.

Returns
U_STATUS_SUCCESS if successful or U_STATUS_ERROR if an error occured.
Parameters
[in]sensorThe sensor instance to be disabled.
UBUNTU_DLL_PUBLIC UStatus ua_sensors_orientation_enable ( UASensorsOrientation sensor)

Enables the supplied orientation sensor.

Returns
U_STATUS_SUCCESS if successful or U_STATUS_ERROR if an error occured.
Parameters
[in]sensorThe sensor instance to be enabled.
UBUNTU_DLL_PUBLIC UStatus ua_sensors_orientation_get_max_value ( UASensorsOrientation sensor,
float *  value 
)

Queries the maximum value that can be reported by the sensor.

Returns
The maximum value that can be reported by the sensor.
Parameters
[in]sensorThe sensor instance to be queried.
UBUNTU_DLL_PUBLIC uint32_t ua_sensors_orientation_get_min_delay ( UASensorsOrientation sensor)

Queries the minimum delay between two readings for the supplied sensor.

Returns
The minimum delay between two readings in [ms].
Parameters
[in]sensorThe sensor instance to be queried.
UBUNTU_DLL_PUBLIC UStatus ua_sensors_orientation_get_min_value ( UASensorsOrientation sensor,
float *  value 
)

Queries the minimum value that can be reported by the sensor.

Returns
The minimum value that can be reported by the sensor.
Parameters
[in]sensorThe sensor instance to be queried.
UBUNTU_DLL_PUBLIC UStatus ua_sensors_orientation_get_resolution ( UASensorsOrientation sensor,
float *  value 
)

Queries the numeric resolution supported by the sensor.

Returns
The numeric resolution supported by the sensor.
Parameters
[in]sensorThe sensor instance to be queried.
UBUNTU_DLL_PUBLIC UASensorsOrientation* ua_sensors_orientation_new ( )

Create a new object for accessing the orientation sensor.

Returns
A new instance or NULL in case of errors.
UBUNTU_DLL_PUBLIC UStatus ua_sensors_orientation_set_event_rate ( UASensorsOrientation sensor,
uint32_t  rate 
)

Set the sensor event delivery rate in nanoseconds..

Returns
U_STATUS_SUCCESS if successful or U_STATUS_ERROR if an error occured.
Parameters
[in]sensorThe sensor instance to be modified.
[in]rateThe new event delivery rate.
UBUNTU_DLL_PUBLIC void ua_sensors_orientation_set_reading_cb ( UASensorsOrientation sensor,
on_orientation_event_cb  cb,
void *  ctx 
)

Set the callback to be invoked whenever a new sensor reading is available.

Parameters
[in]sensorThe sensor instance to associate the callback with.
[in]cbThe callback to be invoked.
[in]ctxThe context supplied to the callback invocation.