text: /*
   * Internal header for libusb-compat-0.1
   * Copyright (C) 2008 Daniel Drake <dsd@gentoo.org>
   * Copyright (c) 2000-2003 Johannes Erdfelt <johannes@erdfelt.com>
   *
   * 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
   */
  
  #ifndef __LIBUSB_USBI_H__
  #define __LIBUSB_USBI_H__
  
  /* Some quick and generic macros for the simple kind of lists we use */
  #define LIST_ADD(begin, ent) \
  	do { \
  	  if (begin) { \
  	    ent->next = begin; \
  	    ent->next->prev = ent; \
  	  } else \
  	    ent->next = NULL; \
  	  ent->prev = NULL; \
  	  begin = ent; \
  	} while(0)
  
  #define LIST_DEL(begin, ent) \
  	do { \
  	  if (ent->prev) \
  	    ent->prev->next = ent->next; \
  	  else \
  	    begin = ent->next; \
  	  if (ent->next) \
  	    ent->next->prev = ent->prev; \
  	  ent->prev = NULL; \
  	  ent->next = NULL; \
  	} while (0)
  
  struct usb_dev_handle {
  	libusb_device_handle *handle;
  	struct usb_device *device;
  
  	/* libusb-0.1 is buggy w.r.t. interface claiming. it allows you to claim
  	 * multiple interfaces but only tracks the most recently claimed one,
  	 * which is used for usb_set_altinterface(). we clone the buggy behaviour
  	 * here. */
  	int last_claimed_interface;
  };
  
  #endif
  
  