USB ...\libusb-0.1.12.tar.gz ...\libusb_demo.c ...\libusb_demo.h ...\libusb_demo.o ...\libusb_read_DLEEOT.c ...\libusb_read_GSI.c ...\libusb_read_GSr.c ...\libusb_write_barcode.c ...\libusb_write_font.c ...\License_GPL_v2.txt ...\Makefile ...\Readme_libusb使用说明.txt