On 02/09/2017 06:16 PM, Alex Carver wrote: > Ah, figures this was a systemd concept > > <ducks and runs> Lennart deserves practically all of the criticism headed his way, but this wasn't him, and it predates systemd. The systemd Borg *did* absorb udev, though. /-: Greg KH and Alan Stern are the culprits/heroes for this, as asynchronous probing originated in the USB stack, if I recall correctly.