It seems that the new home for usb.ids is in https://usb-ids.gowdy.us/index.html (from the same mainainer).
About the difference file: I think they are some "old" leftover, when there was not real maintainer of usb.ids, so many people/package maintained a own update version.
IIRC debian has a tools to merge different ids files.
It seems that the new home for usb.ids is in https:/ /usb-ids. gowdy.us/ index.html (from the same mainainer).
About the difference file: I think they are some "old" leftover, when there was not real maintainer of usb.ids, so many people/package maintained a own update version.
IIRC debian has a tools to merge different ids files.