~ruther/stm32h747i-disco-usb-image-viewer

ref: cb4fa519d2c542d36e961a7982e079cc5e6eb00b stm32h747i-disco-usb-image-viewer/src/clocks.c -rw-r--r-- 1.7 KiB 
feat: implement usb devicd cdc descriptors, init, setup