LXR linux/drivers/staging/comedi/comedi

   1/*
   2 * comedi_usb.h
   3 * header file for USB Comedi drivers
   4 *
   5 * COMEDI - Linux Control and Measurement Device Interface
   6 * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License as published by
  10 * the Free Software Foundation; either version 2 of the License, or
  11 * (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 */
  18
  19#ifndef _COMEDI_USB_H
  20#define _COMEDI_USB_H
  21
  22#include <linux/usb.h>
  23
  24#include "comedidev.h"
  25
  26struct usb_interface *comedi_to_usb_interface(struct comedi_device *dev);
  27struct usb_device *comedi_to_usb_dev(struct comedi_device *dev);
  28
  29int comedi_usb_auto_config(struct usb_interface *intf,
  30                           struct comedi_driver *driver, unsigned long context);
  31void comedi_usb_auto_unconfig(struct usb_interface *intf);
  32
  33int comedi_usb_driver_register(struct comedi_driver *comedi_driver,
  34                               struct usb_driver *usb_driver);
  35void comedi_usb_driver_unregister(struct comedi_driver *comedi_driver,
  36                                  struct usb_driver *usb_driver);
  37
  38/**
  39 * module_comedi_usb_driver() - Helper macro for registering a comedi USB driver
  40 * @__comedi_driver: comedi_driver struct
  41 * @__usb_driver: usb_driver struct
  42 *
  43 * Helper macro for comedi USB drivers which do not do anything special
  44 * in module init/exit. This eliminates a lot of boilerplate. Each
  45 * module may only use this macro once, and calling it replaces
  46 * module_init() and module_exit()
  47 */
  48#define module_comedi_usb_driver(__comedi_driver, __usb_driver) \
  49        module_driver(__comedi_driver, comedi_usb_driver_register, \
  50                        comedi_usb_driver_unregister, &(__usb_driver))
  51
  52#endif /* _COMEDI_USB_H */
  53