Zephyr API Documentation  3.6.99
A Scalable Open Source RTOS
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att.h File Reference

Attribute Protocol handling. More...

Go to the source code of this file.

Macros

#define BT_ATT_ERR_SUCCESS   0x00
 The ATT operation was successful.
 
#define BT_ATT_ERR_INVALID_HANDLE   0x01
 The attribute handle given was not valid on the server.
 
#define BT_ATT_ERR_READ_NOT_PERMITTED   0x02
 The attribute cannot be read.
 
#define BT_ATT_ERR_WRITE_NOT_PERMITTED   0x03
 The attribute cannot be written.
 
#define BT_ATT_ERR_INVALID_PDU   0x04
 The attribute PDU was invalid.
 
#define BT_ATT_ERR_AUTHENTICATION   0x05
 The attribute requires authentication before it can be read or written.
 
#define BT_ATT_ERR_NOT_SUPPORTED   0x06
 The ATT Server does not support the request received from the client.
 
#define BT_ATT_ERR_INVALID_OFFSET   0x07
 Offset specified was past the end of the attribute.
 
#define BT_ATT_ERR_AUTHORIZATION   0x08
 The attribute requires authorization before it can be read or written.
 
#define BT_ATT_ERR_PREPARE_QUEUE_FULL   0x09
 Too many prepare writes have been queued.
 
#define BT_ATT_ERR_ATTRIBUTE_NOT_FOUND   0x0a
 No attribute found within the given attribute handle range.
 
#define BT_ATT_ERR_ATTRIBUTE_NOT_LONG   0x0b
 The attribute cannot be read using the ATT_READ_BLOB_REQ PDU.
 
#define BT_ATT_ERR_ENCRYPTION_KEY_SIZE   0x0c
 The Encryption Key Size used for encrypting this link is too short.
 
#define BT_ATT_ERR_INVALID_ATTRIBUTE_LEN   0x0d
 The attribute value length is invalid for the operation.
 
#define BT_ATT_ERR_UNLIKELY   0x0e
 The attribute request that was requested has encountered an error that was unlikely.
 
#define BT_ATT_ERR_INSUFFICIENT_ENCRYPTION   0x0f
 The attribute requires encryption before it can be read or written.
 
#define BT_ATT_ERR_UNSUPPORTED_GROUP_TYPE   0x10
 The attribute type is not a supported grouping attribute.
 
#define BT_ATT_ERR_INSUFFICIENT_RESOURCES   0x11
 Insufficient Resources to complete the request.
 
#define BT_ATT_ERR_DB_OUT_OF_SYNC   0x12
 The server requests the client to rediscover the database.
 
#define BT_ATT_ERR_VALUE_NOT_ALLOWED   0x13
 The attribute parameter value was not allowed.
 
#define BT_ATT_ERR_WRITE_REQ_REJECTED   0xfc
 Write Request Rejected.
 
#define BT_ATT_ERR_CCC_IMPROPER_CONF   0xfd
 Client Characteristic Configuration Descriptor Improperly Configured.
 
#define BT_ATT_ERR_PROCEDURE_IN_PROGRESS   0xfe
 Procedure Already in Progress.
 
#define BT_ATT_ERR_OUT_OF_RANGE   0xff
 Out of Range.
 
#define BT_ATT_MAX_ATTRIBUTE_LEN   512
 
#define BT_ATT_FIRST_ATTRIBUTE_HANDLE   0x0001
 
#define BT_ATT_FIRST_ATTTRIBUTE_HANDLE   __DEPRECATED_MACRO BT_ATT_FIRST_ATTRIBUTE_HANDLE
 
#define BT_ATT_LAST_ATTRIBUTE_HANDLE   0xffff
 
#define BT_ATT_LAST_ATTTRIBUTE_HANDLE   __DEPRECATED_MACRO BT_ATT_LAST_ATTRIBUTE_HANDLE
 

Enumerations

enum  bt_att_chan_opt { BT_ATT_CHAN_OPT_NONE = 0x0 , BT_ATT_CHAN_OPT_UNENHANCED_ONLY = BIT(0) , BT_ATT_CHAN_OPT_ENHANCED_ONLY = BIT(1) }
 ATT channel option bit field values. More...
 

Functions

static const char * bt_att_err_to_str (uint8_t att_err)
 Converts a ATT error to string.
 
int bt_eatt_connect (struct bt_conn *conn, size_t num_channels)
 Connect Enhanced ATT channels.
 
size_t bt_eatt_count (struct bt_conn *conn)
 Get number of EATT channels connected.
 

Detailed Description

Attribute Protocol handling.