Developed a feature for the kholia/zephyr repository that enhances eSPI subsystem compatibility across multiple chipset generations. Focused on embedded systems and driver development using C, the work introduced the ESPI_VWIRE_VALID_BIT_CHECK configuration, allowing conditional enabling or disabling of the virtual wire valid-bit check in eSPI drivers for NPCX and ITE chipsets. This approach addressed behavioral differences in newer Intel SoCs by treating new values as previously valid when the check is disabled, thereby reducing regressions and improving system stability. The implementation required careful kernel configuration and contributed to more robust virtual wire level detection in embedded environments.