On Fri, Oct 02, 2020 at 10:12:33PM +0200, Hans de Goede wrote: > I guess that this means that it is best to just learn to live > with the somewhat long enumeration time with the new scheme in > this somewhat specific case, that is fine with me. There may be a way around it. For instance, a shell script (invoked by udev when the hub is registered) that checks in sysfs to see whether the hub is of the appropriate kind, and if it is, sets the OLD_SCHEME quirk for the right port. Alan Stern