struct usb_device *usbdev_lookup_minor(int minor) 
static struct usb_device *usbdev_lookup_minor(int minor) 
struct usb_device *usbdev_lookup_minor(int minor){	struct class_device *class_dev;	struct usb_device *dev = NULL;	down(&usb_device_class->sem);	list_for_each_entry(class_dev, &usb_device_class->children, node) {		if (class_dev->devt == MKDEV(USB_DEVICE_MAJOR, minor)) {			dev = class_dev->class_data;			break;		}	}	up(&usb_device_class->sem);	return dev;};
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/4592bf5a22593704bb9e8c584a81bf6ca4f6cfec/devio.c/clean/drivers/usb/core/devio.c