--- 1.139/include/linux/usb.h	Wed May  7 00:02:43 2003
+++ edited/include/linux/usb.h	Thu May  8 20:06:31 2003
@@ -511,6 +511,8 @@
 /**
  * struct urb - USB Request Block
  * @urb_list: For use by current owner of the URB.
+ * @dev_list: For use by device driver, even while the URB is owned by
+ * 	usbcore and the HCD.  Th device driver must initialize this list.
  * @pipe: Holds endpoint number, direction, type, and more.
  *	Create these values with the eight macros available;
  *	usb_{snd,rcv}TYPEpipe(dev,endpoint), where the type is "ctrl"
@@ -669,7 +671,8 @@
 	spinlock_t lock;		/* lock for the URB */
 	atomic_t count;			/* reference count of the URB */
 	void *hcpriv;			/* private data for host controller */
-	struct list_head urb_list;	/* list pointer to all active urbs */
+	struct list_head urb_list;	/* private data for usbcore */
+	struct list_head dev_list;	/* private data for device driver */
 	struct usb_device *dev; 	/* (in) pointer to associated device */
 	unsigned int pipe;		/* (in) pipe information */
 	int status;			/* (return) non-ISO status */