[Pkg-cups-devel] Bug#560003:

[James]

And, just in case it's not immediately obvious, the printer has to be
turned-on and ready before plugging-in the USB adapter, or the printer will
not be able to report a Device ID and udev-configure-printer will throw the
"invalid or missing IEEE 1284 Device ID" error message.

Should udev-configure-printer perform polling, to allow the printer to be
turned-on _after_ the USB adapter is plugged?

Reversing the plugging order, adapter first, printer second, fails to provide
a working printer, using lpstat -p.

The need for "ritual", turning the printer on before plugging the USB adapter
or before turning-on the computer, is going to cause user problems and
initial confusion.  It is not "user friendly", nor "idiot-proof".

Some kind of USB adapter polling seems to be needed.


James