Comment 7 for bug 1061069

Not an incompatible change but a noteworthy change:
In CUPS 1.6 the libusb-based "usb" backend will be built by default, see
http://www.cups.org/str.php?L2890
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till.kamppeter 15:20 Feb 13, 2012

Mike, can you also change the build system so that
the libusb-based "usb" backend will get built by default?

The libusb-based backend has once more functionality, especially bi-di
works with all printers, without any manufacturer-wise restrictions,
and second, it works also in systems with usblp module present, as it
detaches the module from the printer before communicating and reattaches
the module after finishing the communication. This means that it
always "just works". The usblp-based backend is now only a fallback
solution for systems without libusb.
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