| # Copyright (c) 2024 Arif Balik <arifbalik@outlook.com> |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| config LOG_BACKEND_MQTT |
| bool "MQTT backend" |
| depends on MQTT_LIB && !LOG_MODE_IMMEDIATE |
| help |
| Send log messages to an MQTT broker using an external MQTT client. |
| This backend publishes log messages to a configurable MQTT topic |
| using an MQTT client provided by the application via the |
| log_backend_mqtt_client_set() API. The application is responsible |
| for initializing, connecting, and managing the MQTT client lifecycle. |
| |
| if LOG_BACKEND_MQTT |
| |
| config LOG_BACKEND_MQTT_TOPIC_DEFAULT |
| string "Default MQTT topic for log messages" |
| default "zephyr/logs" |
| help |
| Default MQTT topic for log messages. Use log backend MQTT API to change it at runtime. |
| |
| config LOG_BACKEND_MQTT_QOS |
| int "MQTT Quality of Service level" |
| default 0 |
| range 0 2 |
| help |
| QoS level for published log messages: |
| 0 - At most once delivery (fire and forget) |
| 1 - At least once delivery (acknowledged delivery) |
| 2 - Exactly once delivery (assured delivery) |
| |
| config LOG_BACKEND_MQTT_RETAIN |
| bool "Retain MQTT messages" |
| help |
| When enabled, published log messages will be retained by the broker |
| and delivered to new subscribers immediately upon subscription. |
| |
| config LOG_BACKEND_MQTT_MAX_MSG_SIZE |
| int "Maximum log message size" |
| default 256 |
| range 64 1024 |
| help |
| Maximum size of a single log message in bytes. |
| |
| backend = MQTT |
| backend-str = mqtt |
| source "subsys/logging/Kconfig.template.log_format_config" |
| |
| endif # LOG_BACKEND_MQTT |
