Input
Overview
Provides driver interfaces for the input service.
These driver interfaces can be used to open and close input device files, get input events, query device information, register callback functions, and control the feature status.
Since:
1.0
Version:
1.0
Summary
Files
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File Name
|
Description
|
|
input_controller.h
|
Declares the driver interfaces for controlling the business process of input devices.
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input_manager.h
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Declares the driver interfaces for managing input devices.
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input_reporter.h
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Declares the driver interfaces for reporting data of input devices.
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input_type.h
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Declares types of input devices as well as the structure and enumeration types used by driver interfaces.
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Data Structures
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Data Structure Name
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Description
|
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InputController
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Provides interfaces for controlling the business process of input devices.
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InputManager
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Provides interfaces for managing input devices.
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IInputInterface
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Defines interfaces for providing driver capabilities of input devices.
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InputReporter
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Provides interfaces for reporting event data of input devices.
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InputExtraCmd
|
Defines the extra commands.
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InputEventData
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Describes the input event data.
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InputReportEventCb
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Describes the input event callback registered by the input service.
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DeviceInfo
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Describes basic device information of the input device.
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Enumerations
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Enumeration Name
|
Description
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RetStatus { INPUT_SUCCESS, INPUT_EINVAL, INPUT_EFAULT, INPUT_ENOMEM, INPUT_ETIMEOUT, INPUT_EUNSUPPORT, INPUT_EUNKNOWN }
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Enumerates return values.
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InputDevType { INDEV_TYPE_TOUCH, INDEV_TYPE_KEY, INDEV_TYPE_KEYBOARD, INDEV_TYPE_MOUSE, INDEV_TYPE_BUTTON, INDEV_TYPE_CROWN, INDEV_TYPE_ENCODER, INDEV_TYPE_UNKNOWN }
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Enumerates input device types.
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PowerStatus { INPUT_RESUME, INPUT_SUSPEND, INPUT_LOW_POWER, INPUT_POWER_STATUS_UNKNOWN }
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Enumerates power statuses.
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CapacitanceTest { BASE_TEST, FULL_TEST, MMI_TEST, RUNNING_TEST, TEST_TYPE_UNKNOWN }
|
Enumerates types of capacitance tests.
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Functions
Details
Enumeration Type Documentation
CapacitanceTest
enum [CapacitanceTest](input.md#gae96e484cfd64ea37b5b7782f57f38a21)
Description:
Enumerates types of capacitance tests.
|
Enumerator
|
Description
|
|
BASE_TEST |
Basic capacitance test
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FULL_TEST |
Full capacitance self-test
|
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MMI_TEST |
Man-Machine Interface (MMI) capacitance test
|
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RUNNING_TEST |
Running capacitance test
|
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TEST_TYPE_UNKNOWN |
Unknown test type
|
InputDevType
enum [InputDevType](input.md#gaa8225ba155dfa1ef2c4119c832bc4dd3)
Description:
Enumerates input device types.
|
Enumerator
|
Description
|
|
INDEV_TYPE_TOUCH |
Touchscreen
|
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INDEV_TYPE_KEY |
Physical key
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INDEV_TYPE_KEYBOARD |
Keyboard
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INDEV_TYPE_MOUSE |
Mouse
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INDEV_TYPE_BUTTON |
Virtual button
|
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INDEV_TYPE_CROWN |
Watch crown
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INDEV_TYPE_ENCODER |
Customized type of a specific function or event
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INDEV_TYPE_UNKNOWN |
Unknown input device type
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PowerStatus
enum [PowerStatus](input.md#ga65e6bb4d942c22dba9975253b0a1d73f)
Description:
Enumerates power statuses.
|
Enumerator
|
Description
|
|
INPUT_RESUME |
Resume status
|
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INPUT_SUSPEND |
Suspend status
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INPUT_LOW_POWER |
Low-power status
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INPUT_POWER_STATUS_UNKNOWN |
Unknown power status
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RetStatus
enum [RetStatus](input.md#ga85d58a5185669daa4995e332b63eba7a)
Description:
Enumerates return values.
|
Enumerator
|
Description
|
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INPUT_SUCCESS |
Success
|
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INPUT_EINVAL |
Invalid value
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INPUT_EFAULT |
Runtime error
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INPUT_ENOMEM |
Failed to apply for memory
|
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INPUT_ETIMEOUT |
Execution timed out
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INPUT_EUNSUPPORT |
The feature is not supported
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INPUT_EUNKNOWN |
Unknown error
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Function Documentation
GetInputInterface()
int GetInputInterface ([IInputInterface](iinputinterface.md) ** interface)
Description:
Gets all interfaces for performing operations on input devices.
You can call this function after the input service is started.
Parameters:
|
Name
|
Description
|
| interface |
Indicates the double pointer to the interface for performing operations on input devices. |
Returns:
Returns 0 if the operation is successful; returns an error code defined in RetStatus otherwise.
