Worked on enhancing wireless functionality in the renesas/zephyr repository by upgrading the Infineon Wi-Fi driver to version 1.2.1 and integrating the whd-expansion module. This effort involved updating the hal_infineon dependency to its latest revision and introducing a new Wi-Fi module configuration, which collectively improved driver support and system stability. The work focused on embedded systems and driver development, utilizing C and CMake to ensure robust integration with existing build systems. By consolidating these changes, the developer reduced integration risks and established a foundation for future wireless features, demonstrating a methodical approach to embedded Wi-Fi driver enhancement.