vendor: pull in support for USB devices via libusb/gousb

vendor.conf

@@ -13,6 +13,7 @@ github.com/golang/snappy	d9eb7a3
 github.com/hashicorp/golang-lru	0a025b7
 github.com/huin/goupnp	679507a
 github.com/jackpal/go-nat-pmp	v1.0.1-4-g1fa385a
+github.com/karalabe/gousb	ffa821b
 github.com/maruel/panicparse	ad66119
 github.com/mattn/go-colorable	v0.0.6-9-gd228849
 github.com/mattn/go-isatty	30a891c

vendor/github.com/karalabe/gousb/.gitignore

+*.sw[op]

vendor/github.com/karalabe/gousb/.travis.yml

+language: go
+
+matrix:
+  include:
+    - os: linux
+      dist: trusty
+      go: 1.7.4
+    - os: osx
+      go: 1.7.4
+
+script:
+  - go test -v -test.run='BCD|Parse' ./...

vendor/github.com/karalabe/gousb/README.md

+Introduction
+============
+
+[![Travis Build Status][travisimg]][travis]
+[![AppVeyor Build Status][appveyorimg]][appveyor]
+[![GoDoc][docimg]][doc]
+
+The gousb package is an attempt at wrapping the `libusb` library into a Go-like binding in a fully self-contained, go-gettable package. Supported platforms include Linux, macOS and Windows as well as the mobile platforms Android and iOS.
+
+This package is a fork of [`github.com/kylelemons/gousb`](https://github.com/kylelemons/gousb), which at the moment seems to be unmaintained. The current fork is different from the upstream package as it contains code to embed `libusb` directly into the Go package (thus becoming fully self-cotnained and go-gettable), as well as it features a few contributions and bugfixes that never really got addressed in the upstream package, but which address important issues nonetheless.
+
+*Note, if @kylelemons decides to pick development of the upstream project up again, consider all commits made by me to this repo as ready contributions. I cannot vouch for other commits as the upstream repo needs a signed CLA for Google.*
+
+[travisimg]:   https://travis-ci.org/karalabe/gousb.svg?branch=master
+[travis]:      https://travis-ci.org/karalabe/gousb
+[appveyorimg]: https://ci.appveyor.com/api/projects/status/84k9xse10rl72gn2/branch/master?svg=true
+[appveyor]:    https://ci.appveyor.com/project/karalabe/gousb
+[docimg]:      https://godoc.org/github.com/karalabe/gousb?status.svg
+[doc]:         https://godoc.org/github.com/karalabe/gousb
+
+Installation
+============
+
+Example: lsusb
+--------------
+The gousb project provides a simple but useful example: lsusb.  This binary will list the USB devices connected to your system and various interesting tidbits about them, their configurations, endpoints, etc.  To install it, run the following command:
+
+    go get -v github.com/karalabe/gousb/lsusb
+
+gousb
+-----
+If you installed the lsusb example, both libraries below are already installed.
+
+Installing the primary gousb package is really easy:
+
+    go get -v github.com/karalabe/gousb/usb
+
+There is also a `usbid` package that will not be installed by default by this command, but which provides useful information including the human-readable vendor and product codes for detected hardware.  It's not installed by default and not linked into the `usb` package by default because it adds ~400kb to the resulting binary.  If you want both, they can be installed thus:
+
+    go get -v github.com/karalabe/gousb/usb{,id}
+
+Documentation
+=============
+The documentation can be viewed via local godoc or via the excellent [godoc.org](http://godoc.org/):
+
+- [usb](http://godoc.org/github.com/karalabe/gousb/usb)
+- [usbid](http://godoc.org/pkg/github.com/karalabe/gousb/usbid)

vendor/github.com/karalabe/gousb/appveyor.yml

+os: Visual Studio 2015
+
+# Clone directly into GOPATH.
+clone_folder: C:\gopath\src\github.com\karalabe\gousb
+clone_depth: 5
+version: "{branch}.{build}"
+environment:
+  global:
+    GOPATH: C:\gopath
+    CC: gcc.exe
+  matrix:
+    - GOARCH: amd64
+      MSYS2_ARCH: x86_64
+      MSYS2_BITS: 64
+      MSYSTEM: MINGW64
+      PATH: C:\msys64\mingw64\bin\;%PATH%
+    - GOARCH: 386
+      MSYS2_ARCH: i686
+      MSYS2_BITS: 32
+      MSYSTEM: MINGW32
+      PATH: C:\msys64\mingw32\bin\;%PATH%
+
+install:
+  - rmdir C:\go /s /q
+  - appveyor DownloadFile https://storage.googleapis.com/golang/go1.7.4.windows-%GOARCH%.zip
+  - 7z x go1.7.4.windows-%GOARCH%.zip -y -oC:\ > NUL
+  - go version
+  - gcc --version
+
+build_script:
+  - go install ./...
+
+test_script:
+  - go test -v -test.run="BCD|Parse" ./...

vendor/github.com/karalabe/gousb/internal/libusb/AUTHORS

+Copyright © 2001 Johannes Erdfelt <johannes@erdfelt.com>
+Copyright © 2007-2009 Daniel Drake <dsd@gentoo.org>
+Copyright © 2010-2012 Peter Stuge <peter@stuge.se>
+Copyright © 2008-2016 Nathan Hjelm <hjelmn@users.sourceforge.net>
+Copyright © 2009-2013 Pete Batard <pete@akeo.ie>
+Copyright © 2009-2013 Ludovic Rousseau <ludovic.rousseau@gmail.com>
+Copyright © 2010-2012 Michael Plante <michael.plante@gmail.com>
+Copyright © 2011-2013 Hans de Goede <hdegoede@redhat.com>
+Copyright © 2012-2013 Martin Pieuchot <mpi@openbsd.org>
+Copyright © 2012-2013 Toby Gray <toby.gray@realvnc.com>
+Copyright © 2013-2015 Chris Dickens <christopher.a.dickens@gmail.com>
+
+Other contributors:
+Akshay Jaggi
+Alan Ott
+Alan Stern
+Alex Vatchenko
+Andrew Fernandes
+Anthony Clay
+Antonio Ospite
+Artem Egorkine
+Aurelien Jarno
+Bastien Nocera
+Bei Zhang
+Benjamin Dobell
+Carl Karsten
+Colin Walters
+Dave Camarillo
+David Engraf
+David Moore
+Davidlohr Bueso
+Federico Manzan
+Felipe Balbi
+Florian Albrechtskirchinger
+Francesco Montorsi
+Francisco Facioni
+Gaurav Gupta
+Graeme Gill
+Gustavo Zacarias
+Hans Ulrich Niedermann
+Hector Martin
+Hoi-Ho Chan
+Ilya Konstantinov
+James Hanko
+John Sheu
+Joshua Blake
+Justin Bischoff
+Karsten Koenig
+Konrad Rzepecki
+Kuangye Guo
+Lars Kanis
+Lars Wirzenius
+Luca Longinotti
+Marcus Meissner
+Markus Heidelberg
+Martin Ettl
+Martin Koegler
+Matthias Bolte
+Mike Frysinger
+Mikhail Gusarov
+Moritz Fischer
+Ларионов Даниил
+Nicholas Corgan
+Omri Iluz
+Orin Eman
+Paul Fertser
+Pekka Nikander
+Rob Walker
+Sean McBride
+Sebastian Pipping
+Simon Haggett
+Simon Newton
+Thomas Röfer
+Tim Hutt
+Tim Roberts
+Tobias Klauser
+Toby Peterson
+Tormod Volden
+Trygve Laugstøl
+Uri Lublin
+Vasily Khoruzhick
+Vegard Storheil Eriksen
+Venkatesh Shukla
+Vitali Lovich
+Xiaofan Chen
+Zoltán Kovács
+Роман Донченко
+parafin
+xantares

vendor/github.com/karalabe/gousb/internal/libusb/libusb/config.h

+#ifndef CONFIG_H
+#define CONFIG_H
+#endif

vendor/github.com/karalabe/gousb/internal/libusb/libusb/os/poll_posix.h

+#ifndef LIBUSB_POLL_POSIX_H
+#define LIBUSB_POLL_POSIX_H
+
+#define usbi_write write
+#define usbi_read read
+#define usbi_close close
+#define usbi_poll poll
+
+int usbi_pipe(int pipefd[2]);
+
+#endif /* LIBUSB_POLL_POSIX_H */

vendor/github.com/karalabe/gousb/internal/libusb/libusb/version.h

+/* This file is parsed by m4 and windres and RC.EXE so please keep it simple. */
+#include "version_nano.h"
+#ifndef LIBUSB_MAJOR
+#define LIBUSB_MAJOR 1
+#endif
+#ifndef LIBUSB_MINOR
+#define LIBUSB_MINOR 0
+#endif
+#ifndef LIBUSB_MICRO
+#define LIBUSB_MICRO 21
+#endif
+#ifndef LIBUSB_NANO
+#define LIBUSB_NANO 0
+#endif
+/* LIBUSB_RC is the release candidate suffix. Should normally be empty. */
+#ifndef LIBUSB_RC
+#define LIBUSB_RC ""
+#endif

vendor/github.com/karalabe/gousb/internal/libusb/libusb/version_nano.h

+#define LIBUSB_NANO 11182