USB devices and the latest update to CUPS

Jonathan Chen jonc at
Fri Mar 18 06:14:29 UTC 2016


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

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?
Jonathan Chen <jonc at>

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