[cups.development] [RFE] STR #4218: blacklist USB printers that do not work with the "usb" backend

[jsmeix.suse]

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[STR New]

Some USB printers claim to support the USB printer class protocol,
but actually they require special methods for the USB data transfer
so that they do not work with the "usb" backend.

I ask for a feature to blacklist such USB printers so that the
"usb" backend does no longer show them by its "device discovery"
to avoid that end-users set up a print queue with the "usb" backend
for USB printers that do not work with the "usb" backend.

The current example for such printers are the
Canon SELPHY ES-series and CP-series printers, see the
"Updated spooler for Canon Selphy dye-sub printers"
mail thread dated Tue 30 Oct 2012 on the
gimp-print-devel at lists.sourceforge.net mailing list.

Link: http://www.cups.org/str.php?L4218
Version:  -feature