Case study

OpenHX: rebuilding Line 6 HX preset control over USB

OpenHX implements selected Line 6 HX and Helix preset controls in a Rust CLI and includes an early GUI. USB captures between HX Edit and an HX Stomp XL informed its bulk-transfer transport, session handshake and preset operations. The published protocol notes cover packet sequences, MessagePack preset data and device quirks.

Targets: Protocol
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 45
Last commit: 2026-10-06
Language: Rust

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a download method observed; no demo found.
Checked: 2026-11-09

How evidence classes are assigned

Requirements & limits

Prerequisites: Building from source requires Rust and libusb 1.0 or later.
Testing evidence: The author reports validation on HX Stomp, HX Stomp XL and Helix Floor; other listed devices are planned.
Limits: Preset renaming, import/export, block reordering and a full GUI editor are listed as planned rather than implemented.
License: MIT license.

Cite

BibTeX

@misc{openhx-case,
  title = {{OpenHX: rebuilding Line 6 HX preset control over USB}},
  howpublished = {\url{https://github.com/allansomensi/openhx}},
  url = {https://github.com/allansomensi/openhx},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/openhx-case/}}
}

Plain text

OpenHX: rebuilding Line 6 HX preset control over USB. https://github.com/allansomensi/openhx (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/openhx-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

README.md GitHub · allansomensi/openhx · Revision ab8aed4
docs/protocol/README.md GitHub · allansomensi/openhx · Revision ab8aed4
LICENSE GitHub · allansomensi/openhx · Revision ab8aed4