Ubuntu

12.04 LTS -clearing USB locations

Asked by Phil Morris

hello

I am having problems reconnecting a printer that WAS working on this machine before.
It is USB to serial - an older kyocera fs600 - but it was working.

now
Operation successful.
phil@phil-Inspiron-6000:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 002: ID 045e:0084 Microsoft Corp. Basic Optical Mouse
Bus 004 Device 003: ID 067b:2305 Prolific Technology, Inc. PL2305 Parallel Port
phil@phil-Inspiron-6000:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 002: ID 045e:0084 Microsoft Corp. Basic Optical Mouse
Bus 004 Device 003: ID 067b:2305 Prolific Technology, Inc. PL2305 Parallel Port
phil@phil-Inspiron-6000:~$ ^C
phil@phil-Inspiron-6000:~$ ^C
phil@phil-Inspiron-6000:~$

Question: How do i clear the last entry for prolific tech out of this list. I then want to do a reinstall of the printer.
As i remember it worked when it was installed higher up

TIA
phil

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Thomas Krüger (thkrueger) said : 		#1

That entry is the USB to LPT (parallel port) adapter. It will show up there once it is plugged in. I have no idea why you would remove that entry, but the best way is just to unplug the adapter.

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Phil Morris (indhalo) said : 		#2

Thanks Thomas
the problem is it deosnt move when i unpplug it,
what i did is try use another usb to //serial (it is serial not parallel) for a SImm card reader

and since then this entry moved 'down ' the list and now neither device works
thats why i wanted to refresh the whole lot

Revision history for this message
Manfred Hampl (m-hampl) said : 		#3

Rebooting the computer should start with an empty usb device table and re-create entries for those device that are present.

So disconnect the converter cable from the computer, reboot, and issue lsusb again - what is the output?

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