Generic Attribute Profile (GATT) More...

Modules
	GATT Client APIs

	GATT Server APIs

Data Structures
struct	bt_gatt_attr
	GATT Attribute structure. More...

struct	bt_gatt_service_static
	GATT Service structure. More...

struct	bt_gatt_service
	GATT Service structure. More...

struct	bt_gatt_service_val
	Service Attribute Value. More...

struct	bt_gatt_include
	Include Attribute Value. More...

struct	bt_gatt_cb
	GATT callback structure. More...

struct	bt_gatt_chrc
	Characteristic Attribute Value. More...

struct	bt_gatt_cep
	Characteristic Extended Properties Attribute Value. More...

struct	bt_gatt_ccc

struct	bt_gatt_scc

struct	bt_gatt_cpf
	GATT Characteristic Presentation Format Attribute Value. More...

Macros
#define	BT_GATT_ERR(_att_err) (-(_att_err))
	Construct error return value for attribute read and write callbacks. More...

#define	BT_GATT_CHRC_BROADCAST 0x01
	Characteristic broadcast property. More...

#define	BT_GATT_CHRC_READ 0x02
	Characteristic read property. More...

#define	BT_GATT_CHRC_WRITE_WITHOUT_RESP 0x04
	Characteristic write without response property. More...

#define	BT_GATT_CHRC_WRITE 0x08
	Characteristic write with response property. More...

#define	BT_GATT_CHRC_NOTIFY 0x10
	Characteristic notify property. More...

#define	BT_GATT_CHRC_INDICATE 0x20
	Characteristic indicate property. More...

#define	BT_GATT_CHRC_AUTH 0x40
	Characteristic Authenticated Signed Writes property. More...

#define	BT_GATT_CHRC_EXT_PROP 0x80
	Characteristic Extended Properties property. More...

#define	BT_GATT_CEP_RELIABLE_WRITE 0x0001

#define	BT_GATT_CEP_WRITABLE_AUX 0x0002

#define	BT_GATT_CCC_NOTIFY 0x0001
	Client Characteristic Configuration Notification. More...

#define	BT_GATT_CCC_INDICATE 0x0002
	Client Characteristic Configuration Indication. More...

#define	BT_GATT_SCC_BROADCAST 0x0001
	Server Characteristic Configuration Broadcast. More...

Enumerations
enum	{ BT_GATT_PERM_NONE = 0 , BT_GATT_PERM_READ = BIT(0) , BT_GATT_PERM_WRITE = BIT(1) , BT_GATT_PERM_READ_ENCRYPT = BIT(2) , BT_GATT_PERM_WRITE_ENCRYPT = BIT(3) , BT_GATT_PERM_READ_AUTHEN = BIT(4) , BT_GATT_PERM_WRITE_AUTHEN = BIT(5) , BT_GATT_PERM_PREPARE_WRITE = BIT(6) }

enum	{ BT_GATT_WRITE_FLAG_PREPARE = BIT(0) , BT_GATT_WRITE_FLAG_CMD = BIT(1) , BT_GATT_WRITE_FLAG_EXECUTE = BIT(2) }

Detailed Description

Generic Attribute Profile (GATT)

Macro Definition Documentation

◆ BT_GATT_CCC_INDICATE

#define BT_GATT_CCC_INDICATE 0x0002

#include <include/zephyr/bluetooth/gatt.h>

Client Characteristic Configuration Indication.

If set, changes to Characteristic Value shall be indicated.

◆ BT_GATT_CCC_NOTIFY

#define BT_GATT_CCC_NOTIFY 0x0001

#include <include/zephyr/bluetooth/gatt.h>

Client Characteristic Configuration Notification.

Client Characteristic Configuration Values

If set, changes to Characteristic Value shall be notified.

◆ BT_GATT_CEP_RELIABLE_WRITE

#define BT_GATT_CEP_RELIABLE_WRITE 0x0001

#include <include/zephyr/bluetooth/gatt.h>

Characteristic Extended Properties Bit field values

◆ BT_GATT_CEP_WRITABLE_AUX

#define BT_GATT_CEP_WRITABLE_AUX 0x0002

#include <include/zephyr/bluetooth/gatt.h>

◆ BT_GATT_CHRC_AUTH

#define BT_GATT_CHRC_AUTH 0x40

#include <include/zephyr/bluetooth/gatt.h>

Characteristic Authenticated Signed Writes property.

If set, permits signed writes to the Characteristic Value.

◆ BT_GATT_CHRC_BROADCAST

#define BT_GATT_CHRC_BROADCAST 0x01

#include <include/zephyr/bluetooth/gatt.h>

Characteristic broadcast property.

Characteristic Properties Bit field values

If set, permits broadcasts of the Characteristic Value using Server Characteristic Configuration Descriptor.

◆ BT_GATT_CHRC_EXT_PROP

#define BT_GATT_CHRC_EXT_PROP 0x80

#include <include/zephyr/bluetooth/gatt.h>

Characteristic Extended Properties property.

If set, additional characteristic properties are defined in the Characteristic Extended Properties Descriptor.

◆ BT_GATT_CHRC_INDICATE

#define BT_GATT_CHRC_INDICATE 0x20

#include <include/zephyr/bluetooth/gatt.h>

Characteristic indicate property.

If set, permits indications of a Characteristic Value with acknowledgment.

◆ BT_GATT_CHRC_NOTIFY

#define BT_GATT_CHRC_NOTIFY 0x10

#include <include/zephyr/bluetooth/gatt.h>

Characteristic notify property.

If set, permits notifications of a Characteristic Value without acknowledgment.

◆ BT_GATT_CHRC_READ

#define BT_GATT_CHRC_READ 0x02

#include <include/zephyr/bluetooth/gatt.h>

Characteristic read property.

If set, permits reads of the Characteristic Value.

◆ BT_GATT_CHRC_WRITE

#define BT_GATT_CHRC_WRITE 0x08

#include <include/zephyr/bluetooth/gatt.h>

Characteristic write with response property.

If set, permits write of the Characteristic Value with response.

◆ BT_GATT_CHRC_WRITE_WITHOUT_RESP

#define BT_GATT_CHRC_WRITE_WITHOUT_RESP 0x04

#include <include/zephyr/bluetooth/gatt.h>

Characteristic write without response property.

If set, permits write of the Characteristic Value without response.

◆ BT_GATT_ERR

#define BT_GATT_ERR ( _att_err ) (-(_att_err))

#include <include/zephyr/bluetooth/gatt.h>

Construct error return value for attribute read and write callbacks.

Parameters

_att_err ATT error code

Returns: Appropriate error code for the attribute callbacks.

◆ BT_GATT_SCC_BROADCAST

#define BT_GATT_SCC_BROADCAST 0x0001

#include <include/zephyr/bluetooth/gatt.h>

Server Characteristic Configuration Broadcast.

Server Characteristic Configuration Values

If set, the characteristic value shall be broadcast in the advertising data when the server is advertising.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

#include <include/zephyr/bluetooth/gatt.h>

GATT attribute permission bit field values

Enumerator
BT_GATT_PERM_NONE	No operations supported, e.g. for notify-only
BT_GATT_PERM_READ	Attribute read permission.
BT_GATT_PERM_WRITE	Attribute write permission.
BT_GATT_PERM_READ_ENCRYPT	Attribute read permission with encryption. If set, requires encryption for read access.
BT_GATT_PERM_WRITE_ENCRYPT	Attribute write permission with encryption. If set, requires encryption for write access.
BT_GATT_PERM_READ_AUTHEN	Attribute read permission with authentication. If set, requires encryption using authenticated link-key for read access.
BT_GATT_PERM_WRITE_AUTHEN	Attribute write permission with authentication. If set, requires encryption using authenticated link-key for write access.
BT_GATT_PERM_PREPARE_WRITE	Attribute prepare write permission. If set, allows prepare writes with use of BT_GATT_WRITE_FLAG_PREPARE passed to write callback.

◆ anonymous enum

anonymous enum

#include <include/zephyr/bluetooth/gatt.h>

GATT attribute write flags

Enumerator

BT_GATT_WRITE_FLAG_PREPARE

Attribute prepare write flag.

   If set, write callback should only check if the device is
   authorized but no data shall be written.

BT_GATT_WRITE_FLAG_CMD

Attribute write command flag.

   If set, indicates that write operation is a command (Write without
   response) which doesn't generate any response.

BT_GATT_WRITE_FLAG_EXECUTE

Attribute write execute flag.

   If set, indicates that write operation is a execute, which indicates
   the end of a long write, and will come after 1 or more
   @ref BT_GATT_WRITE_FLAG_PREPARE.

Modules

Data Structures

Macros

Enumerations

Detailed Description

Macro Definition Documentation

◆ BT_GATT_CCC_INDICATE

◆ BT_GATT_CCC_NOTIFY

◆ BT_GATT_CEP_RELIABLE_WRITE

◆ BT_GATT_CEP_WRITABLE_AUX

◆ BT_GATT_CHRC_AUTH

◆ BT_GATT_CHRC_BROADCAST

◆ BT_GATT_CHRC_EXT_PROP

◆ BT_GATT_CHRC_INDICATE

◆ BT_GATT_CHRC_NOTIFY

◆ BT_GATT_CHRC_READ

◆ BT_GATT_CHRC_WRITE

◆ BT_GATT_CHRC_WRITE_WITHOUT_RESP

◆ BT_GATT_ERR

◆ BT_GATT_SCC_BROADCAST

Enumeration Type Documentation

◆ anonymous enum

◆ anonymous enum