Commit 27fb4f0a authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

Revert "[PATCH] USB: convert usb class devices to real devices" 



This reverts bd00949647ddcea47ce4ea8bb2cfcfc98ebf9f2a commit because it
required a newer version of udev to work properly than what is currently
documented in Documentation/Changes.

Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent f443ddf1

drivers/usb/core/file.c

+7 −6
Original line number Diff line number Diff line
@@ -194,13 +194,14 @@ int usb_register_dev(struct usb_interface *intf, 
		++temp;

	else

		temp = name;

	intf->usb_dev = device_create(usb_class->class, &intf->dev,

				      MKDEV(USB_MAJOR, minor), "%s", temp);

	if (IS_ERR(intf->usb_dev)) {

	intf->class_dev = class_device_create(usb_class->class, NULL,

					      MKDEV(USB_MAJOR, minor),

					      &intf->dev, "%s", temp);

	if (IS_ERR(intf->class_dev)) {

		spin_lock (&minor_lock);

		usb_minors[intf->minor] = NULL;

		spin_unlock (&minor_lock);

		retval = PTR_ERR(intf->usb_dev);

		retval = PTR_ERR(intf->class_dev);

	}

exit:

	return retval;
@@ -241,8 +242,8 @@ void usb_deregister_dev(struct usb_interface *intf, 
	spin_unlock (&minor_lock);



	snprintf(name, BUS_ID_SIZE, class_driver->name, intf->minor - minor_base);

	device_destroy(usb_class->class, MKDEV(USB_MAJOR, intf->minor));

	intf->usb_dev = NULL;

	class_device_destroy(usb_class->class, MKDEV(USB_MAJOR, intf->minor));

	intf->class_dev = NULL;

	intf->minor = -1;

	destroy_usb_class();

}

include/linux/usb.h

+2 −3
Original line number Diff line number Diff line
@@ -103,8 +103,7 @@ enum usb_interface_condition { 
 * @condition: binding state of the interface: not bound, binding

 *	(in probe()), bound to a driver, or unbinding (in disconnect())

 * @dev: driver model's view of this device

 * @usb_dev: if an interface is bound to the USB major, this will point

 *	to the sysfs representation for that device.

 * @class_dev: driver model's class view of this device.

 *

 * USB device drivers attach to interfaces on a physical device.  Each

 * interface encapsulates a single high level function, such as feeding
@@ -144,7 +143,7 @@ struct usb_interface { 
					 * bound to */

	enum usb_interface_condition condition;		/* state of binding */

	struct device dev;		/* interface specific device info */

	struct device *usb_dev;		/* pointer to the usb class's device, if any */

	struct class_device *class_dev;

};

#define	to_usb_interface(d) container_of(d, struct usb_interface, dev)

#define	interface_to_usbdev(intf) \