Christian Hemp enhanced the phytec/doc-bsp-yocto repository by updating RS485 documentation to use a generic serial UART device identifier, replacing a previously hardcoded reference. This change improved the flexibility and portability of documentation examples, allowing them to be reused across different hardware configurations and Yocto environments. Christian applied documentation best practices and embedded systems knowledge, utilizing RST for clear technical writing and Git for version control and traceability. The update aligned configuration and testing workflows with the |serial-uart| approach, reducing environment-specific constraints and supporting easier cross-platform validation. No bugs were fixed, as the focus was on documentation consistency and maintainability.