Worked on stabilizing the USB-C/UCSI stack in the geerlingguy/linux repository by addressing a critical allocation failure in the Cros_ec_ucsi driver. Focused on kernel development and embedded systems, the work involved defining both read_cci and poll_cci operations in C to ensure proper UCSI instance operation. This targeted bug fix improved device compatibility and runtime reliability for USB Type-C port controllers, aligning the implementation with UC-SI interface expectations and kernel conventions. The patch, merged into the repository, reduced runtime errors for downstream users and contributed to a more robust USB-C experience across supported devices without introducing new features.