gatt_client_discover_characteristic_descriptors() function

Discovers attribute handle and UUID of a characteristic descriptor within the specified characteristic. For each found descriptor a GATT_EVENT_ALL_CHARACTERISTIC_DESCRIPTORS_QUERY_RESULT event will be emitted. The GATT_EVENT_QUERY_COMPLETE event marks the end of discovery.

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Summary

Declaration

Definition

from gatt_client.h:526

uint8_t gatt_client_discover_characteristic_descriptors(btstack_packet_handler_t callback, hci_con_handle_t con_handle, gatt_client_characteristic_t * characteristic);

Implemented in gatt_client.c:2399

Arguments

Argument

callback

con_handle

characteristic

Return value

status BTSTACK_MEMORY_ALLOC_FAILED, if no GATT client for con_handle is found GATT_CLIENT_IN_WRONG_STATE , if GATT client is not ready ERROR_CODE_SUCCESS , if query is successfully registered

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References

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gatt_client_discover_characteristic_descriptors() function

Syntax

Arguments

Return value

Examples

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