Bt-bu1 Driver |work|

Developers writing drivers for Bluetooth peripherals (e.g., a custom BLE sensor) no longer write Kernel Mode drivers. Instead, they utilize the API or write a UMDF driver.

This paper outlines the architecture of the Bluetooth driver stack in Microsoft Windows operating systems. It details the transition from legacy kernel-mode drivers to the modern architecture. This architecture improves system stability and security by moving protocol handling and data processing from the kernel space to the user space, utilizing the User-Mode Driver Framework (UMDF). bt-bu1 driver