sound/usb/usx2y/Makefile - third_party/linux - Git at Google

 snd-usb-usx2y-objs := usbusx2y.o usX2Yhwdep.o usx2yhwdeppcm.o

 obj-$(CONFIG_SND_USB_USX2Y) += snd-usb-usx2y.o
	snd-usb-usx2y-objs := usbusx2y.o usX2Yhwdep.o usx2yhwdeppcm.o

	obj-$(CONFIG_SND_USB_USX2Y) += snd-usb-usx2y.o