@nefarius I know this is late but wanted to note for anyone following along that wanted source code to filter on these events, you can use the code from github usbsnoop project (https://github.com/SnoopWare/usbsnoop/blob/master/USBSnoop/DriverEntry.cpp) Also the IOCTL lookups can be found here (http://www.ioctls.net/) Additionally there is this discussion (https://community.osr.com/discussion/262813/question-regarding-bluetooth-bthusb-filter-driver) on how to use the windows driver samples - general toaster driver (https://github.com/microsoft/Windows-driver-samples/tree/master/general/toaster/toastDrv) to create a filter driver.