from a non-expert (me): possibly figure out what happens when the device is plugged/unplugged and doing that by hand. if you can find the udev file(s) that manage the port(s) that get hung you may be able to figure out what those steps would be. or you could try, when hung, plugging it into a different USB port... some motherboards have multiple USB controllers, so even if one gets wedged tight, the other one(s) shouldn't be. Good Luck! Fred On Thu, Jan 14, 2021 at 11:22 AM Frank Bures <listfrank1 at gmail.com> wrote: > Hi, > > my USB connected printer goes into deep space from time to time probably > due to a HW problem on the MoBo. > > Is there a way how to reset the USB subsystem the same way one can restart > networking or X without the necessity to reboot? > > Thanks > Frank > > -- > > <listfrank1 at gmail.com> > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos >