External Connection

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The External Connection provides functions for receiving External_connection events or information.

Required Header

#include <hal-device-external_connection.h>

Overview

The External_connection provides the way to get properties related to External_connection. It also supports the API for an application to receive the external_connection event by callback function from the system.

The External_connection functions provide external_connection information including:

• Load/Unload for external_connection hal-backend module
• Register extcon device event
• Unregister extcon device event
• Getter for extcon device name
• Getter for extcon device current state

For more information on the External_connection features and the macros, see HAL External_connection programming guides and tutorials.

Typedefs
typedef struct _hal_backend_device_external_connection_funcs	hal_backend_device_external_connection_funcs
	Structure for External_connection functions.
typedef void(*	hal_device_external_connection_updated_cb )(hal_device_external_connection_info_s *info, void *data)
	Called when a External_connection information is handled.

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Data Structure Documentation

struct _hal_backend_device_external_connection_funcs

Structure for External_connection functions.

Since:

HAL_MODULE_DEVICE_EXTERNAL_CONNECTION 1.0

Data Fields
int(*	register_changed_event )(hal_device_external_connection_updated_cb updated_cb, void *user_data)
void(*	unregister_changed_event )(hal_device_external_connection_updated_cb updated_cb)
int(*	get_current_state )(hal_device_external_connection_updated_cb updated_cb, void *user_data)

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Field Documentation

int(* _hal_backend_device_external_connection_funcs::get_current_state)(hal_device_external_connection_updated_cb updated_cb, void *user_data)

Get current states

int(* _hal_backend_device_external_connection_funcs::register_changed_event)(hal_device_external_connection_updated_cb updated_cb, void *user_data)

Register external_connection event

void(* _hal_backend_device_external_connection_funcs::unregister_changed_event)(hal_device_external_connection_updated_cb updated_cb)

Unregister external_connection event

struct hal_device_external_connection_info_s

Structure for External_connection information data.

Since:

HAL_MODULE_DEVICE_EXTERNAL_CONNECTION 1.0

Data Fields
hal_device_external_connection_device_type_e	device_type
char *	state

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Field Documentation

hal_device_external_connection_device_type_e hal_device_external_connection_info_s::device_type

This indicates switch device type

char* hal_device_external_connection_info_s::state

This indicates current state of the switch device, e.g) "on" of "off"

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Typedef Documentation

typedef struct _hal_backend_device_external_connection_funcs hal_backend_device_external_connection_funcs

Structure for External_connection functions.

Since:

HAL_MODULE_DEVICE_EXTERNAL_CONNECTION 1.0

typedef void(* hal_device_external_connection_updated_cb)(hal_device_external_connection_info_s *info, void *data)

Called when a External_connection information is handled.

Since:

HAL_MODULE_DEVICE_EXTERNAL_CONNECTION 1.0

Parameters:

[out]	info	External connection information
[out]	user_data	User data passed

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Enumeration Type Documentation

enum hal_device_external_connection_device_type_e

Enumeration for External_connection device type.

Since:

HAL_MODULE_DEVICE_EXTERNAL_CONNECTION 1.0

Enumerator:

HAL_DEVICE_EXTERNAL_CONNECTION_USB	USB device
HAL_DEVICE_EXTERNAL_CONNECTION_USB_HOST	USB host device
HAL_DEVICE_EXTERNAL_CONNECTION_TA	TA device
HAL_DEVICE_EXTERNAL_CONNECTION_HDMI	HDMI device
HAL_DEVICE_EXTERNAL_CONNECTION_DOCK	Dock device
HAL_DEVICE_EXTERNAL_CONNECTION_MIC	MIC device
HAL_DEVICE_EXTERNAL_CONNECTION_HEADPHONE	Headphone device