qmk_firmware/Demos/Host/ClassDriver/PrinterHost/asf.xml

<asf xmlversion="1.0">
	<project caption="Printer Host Demo (Class Driver APIs)" id="lufa.demos.host.class.printer.example">
		<require idref="lufa.demos.host.class.printer"/>
		<generator value="as5_8"/>

		<device-support value="at90usb1287"/>
		<config name="lufa.drivers.board.name" value="usbkey"/>

		<build type="define" name="F_CPU" value="8000000UL"/>
		<build type="define" name="F_USB" value="8000000UL"/>
	</project>

	<module type="application" id="lufa.demos.host.class.printer" caption="Printer Host Demo (Class Driver APIs)">
		<info type="description" value="summary">
		Printer Host demo, implementing a basic USB printer host that can send raw printer control data to an attached device.
		</info>

		<device-support-alias value="lufa_avr8"/>
		<device-support-alias value="lufa_xmega"/>
		<device-support-alias value="lufa_uc3"/>

		<build type="c-source" value="PrinterHost.c"/>
		<build type="header-file" value="PrinterHost.h"/>

		<build type="module-config" subtype="path" value="Config"/>
		<build type="header-file" value="Config/LUFAConfig.h"/>

		<require idref="lufa.common"/>
		<require idref="lufa.platform"/>
		<require idref="lufa.drivers.usb"/>
		<require idref="lufa.drivers.peripheral.usart"/>
		<require idref="lufa.drivers.misc.ansi"/>
		<require idref="lufa.drivers.board"/>
		<require idref="lufa.drivers.board.leds"/>
	</module>
</asf>