Attribute Protocol (ATT)
API Reference
- group bt_att
Attribute Protocol (ATT)
Defines
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BT_ATT_ERR_SUCCESS
The ATT operation was successful
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BT_ATT_ERR_INVALID_HANDLE
The attribute handle given was not valid on the server
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BT_ATT_ERR_READ_NOT_PERMITTED
The attribute cannot be read
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BT_ATT_ERR_WRITE_NOT_PERMITTED
The attribute cannot be written
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BT_ATT_ERR_INVALID_PDU
The attribute PDU was invalid
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BT_ATT_ERR_AUTHENTICATION
The attribute requires authentication before it can be read or written
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BT_ATT_ERR_NOT_SUPPORTED
The ATT Server does not support the request received from the client
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BT_ATT_ERR_INVALID_OFFSET
Offset specified was past the end of the attribute
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BT_ATT_ERR_AUTHORIZATION
The attribute requires authorization before it can be read or written
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BT_ATT_ERR_PREPARE_QUEUE_FULL
Too many prepare writes have been queued
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BT_ATT_ERR_ATTRIBUTE_NOT_FOUND
No attribute found within the given attribute handle range
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BT_ATT_ERR_ATTRIBUTE_NOT_LONG
The attribute cannot be read using the ATT_READ_BLOB_REQ PDU
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BT_ATT_ERR_ENCRYPTION_KEY_SIZE
The Encryption Key Size used for encrypting this link is too short
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BT_ATT_ERR_INVALID_ATTRIBUTE_LEN
The attribute value length is invalid for the operation
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BT_ATT_ERR_UNLIKELY
The attribute request that was requested has encountered an error that was unlikely.
The attribute request could therefore not be completed as requested
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BT_ATT_ERR_INSUFFICIENT_ENCRYPTION
The attribute requires encryption before it can be read or written
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BT_ATT_ERR_UNSUPPORTED_GROUP_TYPE
The attribute type is not a supported grouping attribute.
The attribute type is not a supported grouping attribute as defined by a higher layer specification.
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BT_ATT_ERR_INSUFFICIENT_RESOURCES
Insufficient Resources to complete the request
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BT_ATT_ERR_DB_OUT_OF_SYNC
The server requests the client to rediscover the database
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BT_ATT_ERR_VALUE_NOT_ALLOWED
The attribute parameter value was not allowed
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BT_ATT_ERR_WRITE_REQ_REJECTED
Write Request Rejected
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BT_ATT_ERR_CCC_IMPROPER_CONF
Client Characteristic Configuration Descriptor Improperly Configured
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BT_ATT_ERR_PROCEDURE_IN_PROGRESS
Procedure Already in Progress
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BT_ATT_ERR_OUT_OF_RANGE
Out of Range
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BT_ATT_MAX_ATTRIBUTE_LEN
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BT_ATT_FIRST_ATTRIBUTE_HANDLE
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BT_ATT_FIRST_ATTTRIBUTE_HANDLE
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BT_ATT_LAST_ATTRIBUTE_HANDLE
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BT_ATT_LAST_ATTTRIBUTE_HANDLE
Enums
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enum bt_att_chan_opt
ATT channel option bit field values.
Note
BT_ATT_CHAN_OPT_UNENHANCED_ONLY and BT_ATT_CHAN_OPT_ENHANCED_ONLY are mutually exclusive and both bits may not be set.
Values:
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enumerator BT_ATT_CHAN_OPT_NONE
Both Enhanced and Unenhanced channels can be used
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enumerator BT_ATT_CHAN_OPT_UNENHANCED_ONLY
Only Unenhanced channels will be used
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enumerator BT_ATT_CHAN_OPT_ENHANCED_ONLY
Only Enhanced channels will be used
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enumerator BT_ATT_CHAN_OPT_NONE
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BT_ATT_ERR_SUCCESS