Case study

carlinkit-cxx: Linux receiver for Carlinkit Auto Box USB messages

carlinkit-cxx implements a Linux host for Carlinkit Auto Box USB dongles using their framed bulk-message protocol. It receives CarPlay or Android Auto H.264 video and PCM audio, sends touch input and displays decoded video through VAAPI, V4L2 or software paths.

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: 10
Last commit: 2026-07-12
Language: C++
License (GitHub): Apache-2.0

GitHub data as of 2026-11-10

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Evidence

Observed: Code, documentation and a demo observed; no download method found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: Carlinkit Auto Box USB dongle with ID 1314:1520 or 1314:1521 and Linux.
Prerequisites: CMake, Meson, a C++17 compiler, libusb and the documented media/display dependencies.
Limits: A software-only decoder build is available; some display targets require drm-cxx and further libraries.
License: Apache-2.0 licence.

Cite

BibTeX

@misc{carlinkit-cxx-case,
  title = {{carlinkit-cxx: Linux receiver for Carlinkit Auto Box USB messages}},
  howpublished = {\url{https://github.com/jwinarske/carlinkit-cxx}},
  url = {https://github.com/jwinarske/carlinkit-cxx},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/carlinkit-cxx-case/}}
}

Plain text

carlinkit-cxx: Linux receiver for Carlinkit Auto Box USB messages. https://github.com/jwinarske/carlinkit-cxx (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/carlinkit-cxx-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

README.md GitHub · jwinarske/carlinkit-cxx · Revision 28282e2
docs/ARCHITECTURE.md GitHub · jwinarske/carlinkit-cxx · Revision 28282e2
src/protocol.h GitHub · jwinarske/carlinkit-cxx · Revision 28282e2