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Commit bd009496 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

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

parent c182274f
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+6 −7
Original line number Diff line number Diff line
@@ -158,14 +158,13 @@ int usb_register_dev(struct usb_interface *intf,
		++temp;
	else
		temp = name;
	intf->class_dev = class_device_create(usb_class, NULL,
					      MKDEV(USB_MAJOR, minor),
					      &intf->dev, "%s", temp);
	if (IS_ERR(intf->class_dev)) {
	intf->usb_dev = device_create(usb_class, &intf->dev,
				      MKDEV(USB_MAJOR, minor), "%s", temp);
	if (IS_ERR(intf->usb_dev)) {
		spin_lock (&minor_lock);
		usb_minors[intf->minor] = NULL;
		spin_unlock (&minor_lock);
		retval = PTR_ERR(intf->class_dev);
		retval = PTR_ERR(intf->usb_dev);
	}
exit:
	return retval;
@@ -206,8 +205,8 @@ void usb_deregister_dev(struct usb_interface *intf,
	spin_unlock (&minor_lock);

	snprintf(name, BUS_ID_SIZE, class_driver->name, intf->minor - minor_base);
	class_device_destroy(usb_class, MKDEV(USB_MAJOR, intf->minor));
	intf->class_dev = NULL;
	device_destroy(usb_class, MKDEV(USB_MAJOR, intf->minor));
	intf->usb_dev = NULL;
	intf->minor = -1;
}
EXPORT_SYMBOL(usb_deregister_dev);
+3 −2
Original line number Diff line number Diff line
@@ -103,7 +103,8 @@ 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
 * @class_dev: driver model's class 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.
 *
 * USB device drivers attach to interfaces on a physical device.  Each
 * interface encapsulates a single high level function, such as feeding
@@ -143,7 +144,7 @@ struct usb_interface {
					 * bound to */
	enum usb_interface_condition condition;		/* state of binding */
	struct device dev;		/* interface specific device info */
	struct class_device *class_dev;
	struct device *usb_dev;		/* pointer to the usb class's device, if any */
};
#define	to_usb_interface(d) container_of(d, struct usb_interface, dev)
#define	interface_to_usbdev(intf) \