[cups.general] Unable to open USB device

[Michael R Sweet]

Justin Huang wrote:
>> URIs of the form "usb:/dev/usb/*" are no longer supported in CUPS
>> 1.2, largely because those device names are not stable, i.e. the
>> number will change on you whenever you boot, cycle the power on the
>> printer, or disconnect/connect the printer.
>>
>> --
>> ______________________________________________________________________
>> Michael Sweet, Easy Software Products           mike at easysw dot com
>> Internet Printing and Document Software          http://www.easysw.com
> 
> How does Linux or CUPS do for mapping the form "usb:/MFG/MDL" to the physical device file "/dev/usb/lpN"?

We open every USB printer and get the 1284 device ID, which gives us
the make and model.

-- 
______________________________________________________________________
Michael R Sweet                        Senior Printing System Engineer