3 * Comedi USB driver specific functions.
5 * COMEDI - Linux Control and Measurement Device Interface
6 * Copyright (C) 1997-2000 David A. Schleef <ds@schleef.org>
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.
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.
19 #include <linux/usb.h>
21 #include "comedidev.h"
24 * comedi_to_usb_interface() - comedi_device pointer to usb_interface pointer.
25 * @dev: comedi_device struct
27 struct usb_interface
*comedi_to_usb_interface(struct comedi_device
*dev
)
29 return dev
->hw_dev
? to_usb_interface(dev
->hw_dev
) : NULL
;
31 EXPORT_SYMBOL_GPL(comedi_to_usb_interface
);
34 * comedi_usb_auto_config() - Configure/probe a comedi USB driver.
35 * @intf: usb_interface struct
36 * @driver: comedi_driver struct
37 * @context: driver specific data, passed to comedi_auto_config()
39 * Typically called from the usb_driver (*probe) function.
41 int comedi_usb_auto_config(struct usb_interface
*intf
,
42 struct comedi_driver
*driver
,
43 unsigned long context
)
45 return comedi_auto_config(&intf
->dev
, driver
, context
);
47 EXPORT_SYMBOL_GPL(comedi_usb_auto_config
);
50 * comedi_pci_auto_unconfig() - Unconfigure/disconnect a comedi USB driver.
51 * @intf: usb_interface struct
53 * Typically called from the usb_driver (*disconnect) function.
55 void comedi_usb_auto_unconfig(struct usb_interface
*intf
)
57 comedi_auto_unconfig(&intf
->dev
);
59 EXPORT_SYMBOL_GPL(comedi_usb_auto_unconfig
);
62 * comedi_usb_driver_register() - Register a comedi USB driver.
63 * @comedi_driver: comedi_driver struct
64 * @usb_driver: usb_driver struct
66 * This function is used for the module_init() of comedi USB drivers.
67 * Do not call it directly, use the module_comedi_usb_driver() helper
70 int comedi_usb_driver_register(struct comedi_driver
*comedi_driver
,
71 struct usb_driver
*usb_driver
)
75 ret
= comedi_driver_register(comedi_driver
);
79 ret
= usb_register(usb_driver
);
81 comedi_driver_unregister(comedi_driver
);
87 EXPORT_SYMBOL_GPL(comedi_usb_driver_register
);
90 * comedi_usb_driver_unregister() - Unregister a comedi USB driver.
91 * @comedi_driver: comedi_driver struct
92 * @usb_driver: usb_driver struct
94 * This function is used for the module_exit() of comedi USB drivers.
95 * Do not call it directly, use the module_comedi_usb_driver() helper
98 void comedi_usb_driver_unregister(struct comedi_driver
*comedi_driver
,
99 struct usb_driver
*usb_driver
)
101 usb_deregister(usb_driver
);
102 comedi_driver_unregister(comedi_driver
);
104 EXPORT_SYMBOL_GPL(comedi_usb_driver_unregister
);