> Was Tumbleweed the host or the guest? Host. > What OS was used for the other machine? Doesn't matter, no USB devices are shown in the VM config dialog. > In the TW machine, what versions of the kernel and VirtualBox were installed? Sadly I can't tell the exact versions, but it was the latest from the OSS repo on saturday (31.10). I remember that VBox was 5.0.6. I'll try it with the newest, premature, snapshot and report back. > I suspect that the VB kernel modules did not match that of the kernel. A new > version of VB was recently submitted, and that has caused mismatches in the > build process. Maybe, but everything else works fine. Just /dev/vboxusb is empty. I tried it two weeks ago as well and I had the exact same issue.