root/drivers/staging/comedi/comedi_usb.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   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 
   9 #ifndef _COMEDI_USB_H
  10 #define _COMEDI_USB_H
  11 
  12 #include <linux/usb.h>
  13 
  14 #include "comedidev.h"
  15 
  16 struct usb_interface *comedi_to_usb_interface(struct comedi_device *dev);
  17 struct usb_device *comedi_to_usb_dev(struct comedi_device *dev);
  18 
  19 int comedi_usb_auto_config(struct usb_interface *intf,
  20                            struct comedi_driver *driver, unsigned long context);
  21 void comedi_usb_auto_unconfig(struct usb_interface *intf);
  22 
  23 int comedi_usb_driver_register(struct comedi_driver *comedi_driver,
  24                                struct usb_driver *usb_driver);
  25 void comedi_usb_driver_unregister(struct comedi_driver *comedi_driver,
  26                                   struct usb_driver *usb_driver);
  27 
  28 /**
  29  * module_comedi_usb_driver() - Helper macro for registering a comedi USB driver
  30  * @__comedi_driver: comedi_driver struct
  31  * @__usb_driver: usb_driver struct
  32  *
  33  * Helper macro for comedi USB drivers which do not do anything special
  34  * in module init/exit. This eliminates a lot of boilerplate. Each
  35  * module may only use this macro once, and calling it replaces
  36  * module_init() and module_exit()
  37  */
  38 #define module_comedi_usb_driver(__comedi_driver, __usb_driver) \
  39         module_driver(__comedi_driver, comedi_usb_driver_register, \
  40                         comedi_usb_driver_unregister, &(__usb_driver))
  41 
  42 #endif /* _COMEDI_USB_H */