Yavor Goulishev | e9a6831 | 2011-05-23 11:58:06 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Internal header for libusb-compat-0.1 |
| 3 | * Copyright (C) 2008 Daniel Drake <dsd@gentoo.org> |
| 4 | * Copyright (c) 2000-2003 Johannes Erdfelt <johannes@erdfelt.com> |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with this library; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | */ |
| 20 | |
| 21 | #ifndef __LIBUSB_USBI_H__ |
| 22 | #define __LIBUSB_USBI_H__ |
| 23 | |
| 24 | /* Some quick and generic macros for the simple kind of lists we use */ |
| 25 | #define LIST_ADD(begin, ent) \ |
| 26 | do { \ |
| 27 | if (begin) { \ |
| 28 | ent->next = begin; \ |
| 29 | ent->next->prev = ent; \ |
| 30 | } else \ |
| 31 | ent->next = NULL; \ |
| 32 | ent->prev = NULL; \ |
| 33 | begin = ent; \ |
| 34 | } while(0) |
| 35 | |
| 36 | #define LIST_DEL(begin, ent) \ |
| 37 | do { \ |
| 38 | if (ent->prev) \ |
| 39 | ent->prev->next = ent->next; \ |
| 40 | else \ |
| 41 | begin = ent->next; \ |
| 42 | if (ent->next) \ |
| 43 | ent->next->prev = ent->prev; \ |
| 44 | ent->prev = NULL; \ |
| 45 | ent->next = NULL; \ |
| 46 | } while (0) |
| 47 | |
| 48 | struct usb_dev_handle { |
| 49 | libusb_device_handle *handle; |
| 50 | struct usb_device *device; |
| 51 | |
| 52 | /* libusb-0.1 is buggy w.r.t. interface claiming. it allows you to claim |
| 53 | * multiple interfaces but only tracks the most recently claimed one, |
| 54 | * which is used for usb_set_altinterface(). we clone the buggy behaviour |
| 55 | * here. */ |
| 56 | int last_claimed_interface; |
| 57 | }; |
| 58 | |
| 59 | #endif |
| 60 | |