Worked on stabilizing hardware button input for the Mipad 2 under GNOME within the yuwata/systemd repository, focusing on kernel-level improvements. Addressed an issue where unknown key events were reaching user space by implementing a key-mapping change in the Linux kernel, remapping these events to KEY_RESERVED. This approach prevented the kernel from forwarding spurious input events, resulting in more reliable button behavior and a smoother user experience. Utilized C for system programming and hardware interaction, contributing a targeted bug fix that enhanced hardware compatibility and reduced user-facing issues. The work demonstrated depth in kernel development and practical problem-solving for device integration.