ATT

The attribute protocol allows a device referred to as the server to expose a set of attributes and their associated values to a peer device referred to as the client. More...

Modules
	ATT Server
	This module describes functions and data structures used to implement an ATT server (peripheral).
	ATT Client
	This module describes functions and data structures used to implement an ATT client (central).

Error Codes
#define	ATT_ERROR_SUCCESS   0x00
	The operation completed with no errors.
#define	ATT_SUCCESS   0x00
	The operation completed with no errors.
#define	ATT_ERROR_INVALID_HANDLE   0x01
	The attribute handle given was not valid on this server.
#define	ATT_ERROR_READ_NOT_PERMITTED   0x02
	The attribute cannot be read.
#define	ATT_ERROR_WRITE_NOT_PERMITTED   0x03
	The attribute cannot be written.
#define	ATT_ERROR_INVALID_PDU   0x04
	The attribute PDU was invalid.
#define	ATT_ERROR_INSUFFICIENT_AUTHENTICATION   0x05
	The attribute requires authentication before it can be read or written.
#define	ATT_ERROR_REQUEST_NOT_SUPPORTED   0x06
	Attribute server does not support the request received from the client.
#define	ATT_ERROR_INVALID_OFFSET   0x07
	Offset specified was past the end of the attribute.
#define	ATT_ERROR_INSUFFICIENT_AUTHORIZATION   0x08
	The attribute requires authorization before it can be read or written.
#define	ATT_ERROR_PREPARE_QUEUE_FULL   0x09
	Too many prepare writes have been queued.
#define	ATT_ERROR_ATTRIBUTE_NOT_FOUND   0x0A
	No attribute found within the given attribute handle range.
#define	ATT_ERROR_ATTRIBUTE_NOT_LONG   0x0B
	The attribute cannot be read or written using the Read Blob Request.
#define	ATT_ERROR_INSUFFICIENT_ENCRYPTION_KEY_SIZE   0x0C
	The Encryption Key Size used for encrypting this link is insufficient.
#define	ATT_ERROR_INVALID_ATTRIBUTE_VALUE_LENGTH   0x0D
	The attribute value length is invalid for the operation.
#define	ATT_ERROR_UNLIKELY_ERROR   0x0E
	The attribute request that was requested has encountered an error. More...
#define	ATT_ERROR_INSUFFICIENT_ENCRYPTION   0x0F
	The attribute requires encryption before it can be read or written.
#define	ATT_ERROR_UNSUPPORTED_GROUP_TYPE   0x10
	The attribute type is not a supported. More...
#define	ATT_ERROR_INSUFFICIENT_RESOURCES   0x11
	Insufficient Resources to complete the request.
#define	ATT_ERROR_INVALID_TRANSPORT   0x80
#define	ATT_ERROR_CLIENT_CHAR_CONFIG_INVALID   0xFD
	Client Characteristic Configuration Descriptor Improperly Configured.
#define	ATT_ERROR_PROCEDURE_IN_PROGRESS   0xFE
	Procedure Already in Progress.
#define	ATT_ERROR_OUT_OF_RANGE   0xFF
	Out of Range.

Detailed Description

The attribute protocol allows a device referred to as the server to expose a set of attributes and their associated values to a peer device referred to as the client.

These attributes exposed by the server can be discovered, read, and written by a client, and can be indicated and notified by the server.

Macro Definition Documentation

#define ATT_ERROR_UNLIKELY_ERROR   0x0E

The attribute request that was requested has encountered an error.

that was unlikely, and therefore could not be completed as requested.

#define ATT_ERROR_UNSUPPORTED_GROUP_TYPE   0x10

The attribute type is not a supported.

grouping attribute as defined by a higher layer specification.