1445 struct urb {  struct
1453 	/* public: documented fields in the urb that can be used by drivers */  argument
1454 	struct list_head urb_list;	/* list head for use by the urb's  argument
1456 	struct list_head anchor_list;	/* the URB may be anchored */
1457 	struct usb_anchor *anchor;
1458 	struct usb_device *dev;		/* (in) pointer to associated device */
1459 	struct usb_host_endpoint *ep;	/* (internal) pointer to endpoint */
1460 	unsigned int pipe;		/* (in) pipe information */
1461 	unsigned int stream_id;		/* (in) stream ID */
1462 	int status;			/* (return) non-ISO status */
1463 	unsigned int transfer_flags;	/* (in) URB_SHORT_NOT_OK | ...*/
1487  * usb_fill_control_urb - initializes a control urb  argument
1500 static inline void usb_fill_control_urb(struct urb *urb,  in usb_fill_control_urb()
1531 static inline void usb_fill_bulk_urb(struct urb *urb,  in usb_fill_bulk_urb()
1572 static inline void usb_fill_int_urb(struct urb *urb,  in usb_fill_int_urb()
1634 static inline int usb_urb_dir_in(struct urb *urb)  in usb_urb_dir_in()
1646 static inline int usb_urb_dir_out(struct urb *urb)  in usb_urb_dir_out()