# MSI Mystic Light on Linux: reconstructing B860/X870 lighting control

> MSI Mystic Light on Linux implements lighting control for an MSI motherboard from USB traffic captured while MSI Center ran in a Windows VM. Its Python script sends a 290-byte HID Feature report to controller 0db0:0076, while the documentation maps modes, RGB palette bytes, brightness, direction and the flash-save flag.

- Type: Case study
- Targets: Protocol
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-06
- Original resource: <https://github.com/Picachuchu69/msi-mystic-light-b860-x870-linux>
- Primary source: <https://github.com/Picachuchu69/msi-mystic-light-b860-x870-linux/blob/166a622ef14f730ed457353f38670ced15a055a3/README.md>
- Catalog page: <https://awesomerea.org/resources/msi-mystic-light-b860-x870-linux-case/>
- Record JSON: <https://awesomerea.org/resources/msi-mystic-light-b860-x870-linux-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/msi-mystic-light-b860-x870-linux-case/index.md)

## Requirements & limits

- **Prerequisites:** Linux, Python 3 and write access to the controller's /dev/hidraw* node.
- **Limits:** Reverse engineered on an MSI MAG B860 TOMAHAWK WIFI; support for other boards with USB ID 0db0:0076 is stated as an expectation.
- **License:** MIT license.

## Primary sources

1. <https://github.com/Picachuchu69/msi-mystic-light-b860-x870-linux/blob/166a622ef14f730ed457353f38670ced15a055a3/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.