Li Hao developed enhanced Bluetooth driver support for the Realtek RTL8852BE device in the geerlingguy/linux repository, focusing on accurate hardware identification and improved user experience. Working primarily in C within the Linux kernel, he added device-specific support by updating the btusb driver and modifying the quirks table to enable wideband speech functionality. This targeted driver development addressed device misdetection issues and ensured reliable configuration for new hardware. Although the work spanned a single feature over one month, it demonstrated depth in embedded systems and kernel-level programming, delivering a focused solution that improved Bluetooth stability and compatibility for end users.