esp_ble_gatts_get_attr_value() function

Retrieve attribute value

Syntax

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Summary

Declaration

Definition

esp_gatt_status_t esp_ble_gatts_get_attr_value(uint16_t attr_handle, uint16_t *length, const uint8_t **value);

Argument

Description

attr_handle

Attribute handle

length

The pointer to the attribute value length in bytes

value

The pointer to attribute value payload. This value cannot be modified by user.

- ESP_OK: Success - ESP_GATT_INVALID_HANDLE: Invalid `attr_handle` - ESP_FAIL: Failure due to other reasons

1. This function does not trigger any event. 2. `attr_handle` must be greater than 0.

esp_ble_gatts_get_attr_value() is referenced by 3 libraries and example projects:

from examples