On 2020-04-17 16:55, Lev Serebryakov wrote: >> sysctl hw.usb.disable_enumeration=1 >> >> Does your device still function? > Nope, it still disappears. You must set this while the device is attached. You can also enable UHUB debug messages (hw.usb.uhub.debug) to see exactly which event is causing this. --HPS