Case study

castty: reconstructing Mionix Castor control on Linux

castty reconstructs configuration of the Mionix Castor mouse on Linux from captured HID feature reports. Its protocol notes describe command report 0x60, profile report 0x61, readback, and field offsets; the Rust GUI and CLI use those findings for lighting, DPI, buttons, macros, and profiles.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C1 partial scope or analysis entry

Stars: 2
Last commit: 2026-09-17
Language: Rust
License (GitHub): GPL-3.0

GitHub data as of 2026-11-10

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Evidence

Demo screenshot from the project's public documentation

Observed: Download and demo observed; the case covers part of the target software.
Scope: Partial
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: A Mionix Castor with USB ID 22d4:1316 and Linux hidraw are required.
Limits: The Castor PRO is a different device and is unsupported.
License: GPL-3.0.

Cite

BibTeX

@misc{castty-mionix-castor-case,
  title = {{castty: reconstructing Mionix Castor control on Linux}},
  howpublished = {\url{https://github.com/fawaz7/castty}},
  url = {https://github.com/fawaz7/castty},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/castty-mionix-castor-case/}}
}

Plain text

castty: reconstructing Mionix Castor control on Linux. https://github.com/fawaz7/castty (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/castty-mionix-castor-case/

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About this entry

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Primary sources

research/PROTOCOL.md GitHub · fawaz7/castty · Revision ac12436
README.md GitHub · fawaz7/castty · Revision ac12436