USB devices and the latest update to CUPS

Thomas Gellekum thomas.gellekum at
Fri Mar 18 08:40:17 UTC 2016

On 03/18/2016 07:14, Jonathan Chen wrote:
> Hi,
> Ever since the latest update to CUPS, jobs sent attached to my USB
> printer are stuck with:
> D [18/Mar/2016:17:01:05 +1300] [Job 407] libusb_get_device_list=1
> I [18/Mar/2016:17:01:05 +1300] [Job 407] Waiting for printer to become
> available.
> This will loop indefinitely, with the printer never coming available.
> If I stop CUPS and directly cat(1) a file to /dev/unlpt0, output will
> appear; so it's nothing to do with the USB connection to the printer.
> Anyone else seeing this?

Yes. I also noticed that the LIBUSB was dropped (unset in my case).


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