---
pageClass: is-wide-page
---

# MavlinkLog (UORB message)

**TOPICS:** mavlink_log

## Fields

| Name                                | Type        | Unit [Frame] | Range/Enum | Description                                              |
| ----------------------------------- | ----------- | ------------ | ---------- | -------------------------------------------------------- |
| <a id="fld_timestamp"></a>timestamp | `uint64`    |              |            | time since system start (microseconds)                   |
| <a id="fld_text"></a>text           | `char[127]` |              |            |
| <a id="fld_severity"></a>severity   | `uint8`     |              |            | log level (same as in the linux kernel, starting with 0) |

## Constants

| Name                                            | Type    | Value | Description |
| ----------------------------------------------- | ------- | ----- | ----------- |
| <a id="#ORB_QUEUE_LENGTH"></a> ORB_QUEUE_LENGTH | `uint8` | 8     |

## Source Message

[Source file (GitHub)](https://github.com/PX4/PX4-Autopilot/blob/main/msg/MavlinkLog.msg)

::: details Click here to see original file

```c
uint64 timestamp		# time since system start (microseconds)

char[127] text
uint8 severity # log level (same as in the linux kernel, starting with 0)

uint8 ORB_QUEUE_LENGTH = 8
```

:::