Yeah, if you use a kernel you built off modprobe-db’s config output, but the build config was generated before you ever used that USB device, then yeah, your kernel wouldn’t have the right modules for it (if the device required some unique kernel modules). modprobe-db will only tell you what it’s seen you use.
Does that mean you need to fiddle with modules, because you plug in a new USB-device you haven’t used before?
Yeah, if you use a kernel you built off modprobe-db’s config output, but the build config was generated before you ever used that USB device, then yeah, your kernel wouldn’t have the right modules for it (if the device required some unique kernel modules). modprobe-db will only tell you what it’s seen you use.