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| 1 | +/* -*- Mode: C; indent-tabs-mode:t ; c-basic-offset:8 -*- */ |
| 2 | +/* |
| 3 | + * Hotplug support for libusb |
| 4 | + * Copyright © 2012-2013 Nathan Hjelm <hjelmn@mac.com> |
| 5 | + * Copyright © 2012-2013 Peter Stuge <peter@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 |
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