gatt_client_read_value_of_characteristic() function

Reads the characteristic value using the characteristic's value handle. If the characteristic value is found a GATT_EVENT_CHARACTERISTIC_VALUE_QUERY_RESULT event will be emitted. The GATT_EVENT_QUERY_COMPLETE event marks the end of read.

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Declaration

Definition

from gatt_client.h:539

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

Implemented in gatt_client.c:2476

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_read_value_of_characteristic() function

Syntax

Arguments

Return value

Examples

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