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

ref: 60e864124ffe6c385a3cf779d8e87ea86b78c859 stm32h747i-disco-usb-image-viewer/src/clocks.c -rw-r--r-- 1.7 KiB 
feat: implement usb devicd cdc descriptors, init, setup