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.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #include <linux/usb.h>
25 #include "comedidev.h"
28 * comedi_to_usb_interface() - comedi_device pointer to usb_interface pointer.
29 * @dev: comedi_device struct
31 struct usb_interface
*comedi_to_usb_interface(struct comedi_device
*dev
)
33 return dev
->hw_dev
? to_usb_interface(dev
->hw_dev
) : NULL
;
35 EXPORT_SYMBOL_GPL(comedi_to_usb_interface
);
38 * comedi_usb_auto_config() - Configure/probe a comedi USB driver.
39 * @intf: usb_interface struct
40 * @driver: comedi_driver struct
41 * @context: driver specific data, passed to comedi_auto_config()
43 * Typically called from the usb_driver (*probe) function.
45 int comedi_usb_auto_config(struct usb_interface
*intf
,
46 struct comedi_driver
*driver
,
47 unsigned long context
)
49 return comedi_auto_config(&intf
->dev
, driver
, context
);
51 EXPORT_SYMBOL_GPL(comedi_usb_auto_config
);
54 * comedi_pci_auto_unconfig() - Unconfigure/disconnect a comedi USB driver.
55 * @intf: usb_interface struct
57 * Typically called from the usb_driver (*disconnect) function.
59 void comedi_usb_auto_unconfig(struct usb_interface
*intf
)
61 comedi_auto_unconfig(&intf
->dev
);
63 EXPORT_SYMBOL_GPL(comedi_usb_auto_unconfig
);
66 * comedi_usb_driver_register() - Register a comedi USB driver.
67 * @comedi_driver: comedi_driver struct
68 * @usb_driver: usb_driver struct
70 * This function is used for the module_init() of comedi USB drivers.
71 * Do not call it directly, use the module_comedi_usb_driver() helper
74 int comedi_usb_driver_register(struct comedi_driver
*comedi_driver
,
75 struct usb_driver
*usb_driver
)
79 ret
= comedi_driver_register(comedi_driver
);
83 ret
= usb_register(usb_driver
);
85 comedi_driver_unregister(comedi_driver
);
91 EXPORT_SYMBOL_GPL(comedi_usb_driver_register
);
94 * comedi_usb_driver_unregister() - Unregister a comedi USB driver.
95 * @comedi_driver: comedi_driver struct
96 * @usb_driver: usb_driver struct
98 * This function is used for the module_exit() of comedi USB drivers.
99 * Do not call it directly, use the module_comedi_usb_driver() helper
102 void comedi_usb_driver_unregister(struct comedi_driver
*comedi_driver
,
103 struct usb_driver
*usb_driver
)
105 usb_deregister(usb_driver
);
106 comedi_driver_unregister(comedi_driver
);
108 EXPORT_SYMBOL_GPL(comedi_usb_driver_unregister
);