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diff --git a/libusbx-1.0.18/libusb/hotplug.h b/libusbx-1.0.18/libusb/hotplug.h
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+/* -*- Mode: C; indent-tabs-mode:t ; c-basic-offset:8 -*- */
+/*
+ * Hotplug support for libusbx
+ * Copyright © 2012-2013 Nathan Hjelm <hjelmn@mac.com>
+ * Copyright © 2012-2013 Peter Stuge <peter@stuge.se>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#if !defined(USBI_HOTPLUG_H)
+#define USBI_HOTPLUG_H
+
+#ifndef LIBUSBI_H
+#include "libusbi.h"
+#endif
+
+/** \ingroup hotplug
+ * The hotplug callback structure. The user populates this structure with
+ * libusb_hotplug_prepare_callback() and then calls libusb_hotplug_register_callback()
+ * to receive notification of hotplug events.
+ */
+struct libusb_hotplug_callback {
+ /** Context this callback is associated with */
+ struct libusb_context *ctx;
+
+ /** Vendor ID to match or LIBUSB_HOTPLUG_MATCH_ANY */
+ int vendor_id;
+
+ /** Product ID to match or LIBUSB_HOTPLUG_MATCH_ANY */
+ int product_id;
+
+ /** Device class to match or LIBUSB_HOTPLUG_MATCH_ANY */
+ int dev_class;
+
+ /** Hotplug callback flags */
+ libusb_hotplug_flag flags;
+
+ /** Event(s) that will trigger this callback */
+ libusb_hotplug_event events;
+
+ /** Callback function to invoke for matching event/device */
+ libusb_hotplug_callback_fn cb;
+
+ /** Handle for this callback (used to match on deregister) */
+ libusb_hotplug_callback_handle handle;
+
+ /** User data that will be passed to the callback function */
+ void *user_data;
+
+ /** Callback is marked for deletion */
+ int needs_free;
+
+ /** List this callback is registered in (ctx->hotplug_cbs) */
+ struct list_head list;
+};
+
+typedef struct libusb_hotplug_callback libusb_hotplug_callback;
+
+struct libusb_hotplug_message {
+ libusb_hotplug_event event;
+ struct libusb_device *device;
+};
+
+typedef struct libusb_hotplug_message libusb_hotplug_message;
+
+void usbi_hotplug_deregister_all(struct libusb_context *ctx);
+void usbi_hotplug_match(struct libusb_context *ctx, struct libusb_device *dev,
+ libusb_hotplug_event event);
+
+#endif