On Thu, Jan 14, 2021 at 12:18:10PM -0500, Fred wrote:
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@xxxxxxxxx> 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?
Couple of cable ideas that may be of interest. I got all of these
from Amazon.
In my new car there is only one usb port to connect data deviced to.
When I used my micro thumb drive to play music the car often "lost"
the drive and it had to be pulled and reinserted. Not easy with the
micro drives.
A second problem was using the one port for music source or plugging
in my phone for Android Auto. The cars usb system would not deal with
a hub of any sort. Thus the nice credit card sized 4 port hub with
individual on/off buttons for each port did not work.
The lost thumb drive was solved with a cable having an on/off switch.
Think of it as a 15 inch usb extension cable (M -> F) with a switch
in the middle.
Both problems were solved with a USB printer A/B switch. This is not
a hub, but a switch intended to let you print to either of 2 different
printers from a computer having a single USB port. In my case the
music thumb drive and the phone are the "printers".
Jon
--
Jon H. LaBadie jcu@xxxxxxxxxx
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