1 /* -*- Mode: C; indent-tabs-mode:t ; c-basic-offset:8 -*- */ 2 /* 3 * Hotplug support for libusbx 4 * Copyright 2012-2013 Nathan Hjelm <hjelmn (at) mac.com> 5 * Copyright 2012-2013 Peter Stuge <peter (at) stuge.se> 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Lesser General Public 9 * License as published by the Free Software Foundation; either 10 * version 2.1 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Lesser General Public License for more details. 16 * 17 * You should have received a copy of the GNU Lesser General Public 18 * License along with this library; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 20 */ 21 22 #if !defined(USBI_HOTPLUG_H) 23 #define USBI_HOTPLUG_H 24 25 #ifndef LIBUSBI_H 26 #include "libusbi.h" 27 #endif 28 29 /** \ingroup hotplug 30 * The hotplug callback structure. The user populates this structure with 31 * libusb_hotplug_prepare_callback() and then calls libusb_hotplug_register_callback() 32 * to receive notification of hotplug events. 33 */ 34 struct libusb_hotplug_callback { 35 /** Context this callback is associated with */ 36 struct libusb_context *ctx; 37 38 /** Vendor ID to match or LIBUSB_HOTPLUG_MATCH_ANY */ 39 int vendor_id; 40 41 /** Product ID to match or LIBUSB_HOTPLUG_MATCH_ANY */ 42 int product_id; 43 44 /** Device class to match or LIBUSB_HOTPLUG_MATCH_ANY */ 45 int dev_class; 46 47 /** Hotplug callback flags */ 48 libusb_hotplug_flag flags; 49 50 /** Event(s) that will trigger this callback */ 51 libusb_hotplug_event events; 52 53 /** Callback function to invoke for matching event/device */ 54 libusb_hotplug_callback_fn cb; 55 56 /** Handle for this callback (used to match on deregister) */ 57 libusb_hotplug_callback_handle handle; 58 59 /** User data that will be passed to the callback function */ 60 void *user_data; 61 62 /** Callback is marked for deletion */ 63 int needs_free; 64 65 /** List this callback is registered in (ctx->hotplug_cbs) */ 66 struct list_head list; 67 }; 68 69 typedef struct libusb_hotplug_callback libusb_hotplug_callback; 70 71 struct libusb_hotplug_message { 72 libusb_hotplug_event event; 73 struct libusb_device *device; 74 }; 75 76 typedef struct libusb_hotplug_message libusb_hotplug_message; 77 78 void usbi_hotplug_deregister_all(struct libusb_context *ctx); 79 void usbi_hotplug_match(struct libusb_context *ctx, struct libusb_device *dev, 80 libusb_hotplug_event event); 81 82 #endif 83
