Worked on enhancing the stability and correctness of the USB stack within the tianocore/edk2 repository, focusing on embedded systems and driver development using C. Addressed a critical bug in USB XHCI descriptor length handling by refining the method for advancing descriptor pointers during USB configuration. This approach relied on parsing descriptor lengths rather than structure sizes, ensuring accurate alignment for subsequent interface and endpoint descriptors. The targeted fix improved USB device enumeration reliability and overall system stability. No new features were introduced during this period, with efforts concentrated on precise protocol handling and robust bug resolution in the USB subsystem.