cmake find_package(LIBUSB) examples

raspberrypi/picotool CMakeLists.txt :216 

find_package(LIBUSB)

EttusResearch/uhd host/lib/CMakeLists.txt :62 

find_package(LIBUSB)

EttusResearch/uhd host/utils/CMakeLists.txt :198 

find_package(LIBUSB)