libusb1.0-src: USB library (source)

    2017-06-19 13:34           0 libusb1.0-1.0.21-1.src/
    2017-06-19 13:34         531 libusb1.0-1.0.21-1.src/1.0.21-cygwin-openssl-compat.patch
    2017-06-19 13:34      384362 libusb1.0-1.0.21-1.src/libusb-v1.0.21.tar.gz
    2017-06-19 13:34         756 libusb1.0-1.0.21-1.src/libusb1.0.cygport