USBjohto

USBjohto is a community-driven wiki project dedicated to USB technology and practical hardware-software interfacing. The project collects tutorials, reference designs, and troubleshooting guides contributed by hobbyists, engineers, and educators, with an emphasis on real-world interoperability and approachable explanations. It covers core USB specifications, device classes, power delivery considerations, and modern connectors such as USB-C, as well as cross-platform driver development for Windows, macOS, Linux, and embedded systems.

Content areas include hands-on firmware examples for microcontrollers, open-source driver snippets, test procedures, and a device database with profiles describing interface capabilities, descriptors, and common configuration pitfalls. The wiki also hosts glossaries, diagnostic checklists, and contribution guidelines to help readers both learn and contribute.

Organizationally, USBjohto operates as a community project with a permissive license and a code of conduct. Contributions are typically reviewed by volunteers, and changes documented in versioned revisions. The project aims to be a practical supplement to official USB specifications, offering hands-on guidance, troubleshooting tips, and design considerations that users can apply to prototypes and educational settings.

USBjohto is widely used by students, makers, and professionals as a starting point for USB projects and as a reference when planning hardware interfacing. It does not replace standards bodies or official specifications but seeks to distill complex topics into accessible, up-to-date guidance.