1593 struct urb {  struct
1601 	/* public: documented fields in the urb that can be used by drivers */  argument
1602 	struct list_head urb_list;	/* list head for use by the urb's  argument
1604 	struct list_head anchor_list;	/* the URB may be anchored */
1605 	struct usb_anchor *anchor;
1606 	struct usb_device *dev;		/* (in) pointer to associated device */
1607 	struct usb_host_endpoint *ep;	/* (internal) pointer to endpoint */
1608 	unsigned int pipe;		/* (in) pipe information */
1609 	unsigned int stream_id;		/* (in) stream ID */
1610 	int status;			/* (return) non-ISO status */
1611 	unsigned int transfer_flags;	/* (in) URB_SHORT_NOT_OK | ...*/
1635  * usb_fill_control_urb - initializes a control urb  argument
1659 static inline void usb_fill_control_urb(struct urb *urb,  in usb_fill_control_urb()
1694 static inline void usb_fill_bulk_urb(struct urb *urb,  in usb_fill_bulk_urb()
1734 static inline void usb_fill_int_urb(struct urb *urb,  in usb_fill_int_urb()
1796 static inline int usb_urb_dir_in(struct urb *urb)  in usb_urb_dir_in()
1808 static inline int usb_urb_dir_out(struct urb *urb)  in usb_urb_dir_out()