struct_urb (9)       - USB Request Block
usb_alloc_coherent (9) - allocate dma-consistent buffer for URB_NO_xxx_DMA_MAP
usb_alloc_urb (9)    - creates a new urb for a USB driver to use
usb_anchor_urb (9)   - anchors an URB while it is processed
usb_block_urb (9)    - reliably prevent further use of an URB
usb_buffer_map (9)   - create DMA mapping(s) for an urb
usb_buffer_unmap (9) - free DMA mapping(s) for an urb
usb_bulk_msg (9)     - Builds a bulk urb, sends it off and waits for completion
usb_control_msg (9)  - Builds a control urb, sends it off and waits for compl...
usb_fill_bulk_urb (9) - macro to help initialize a bulk urb
usb_fill_control_urb (9) - initializes a control urb
usb_fill_int_urb (9) - macro to help initialize a interrupt urb
usb_free_urb (9)     - frees the memory used by a urb when all users of it ar...
usb_get_from_anchor (9) - get an anchor's oldest urb
usb_get_urb (9)      - increments the reference count of the urb
usb_hcd_check_unlink_urb (9) - check whether an URB may be unlinked
usb_hcd_giveback_urb (9) - return URB from HCD to device driver
usb_hcd_link_urb_to_ep (9) - add an URB to its endpoint queue
usb_hcd_unlink_urb_from_ep (9) - remove an URB from its endpoint queue
usb_init_urb (9)     - initializes a urb so that it can be used by a USB driver
usb_interrupt_msg (9) - Builds an interrupt urb, sends it off and waits for c...
usb_kill_anchored_urbs (9) - cancel transfer requests en masse
usb_kill_urb (9)     - cancel a transfer request and wait for it to finish
usb_poison_anchored_urbs (9) - cease all traffic from an anchor
usb_poison_urb (9)   - reliably kill a transfer and prevent further use of an...
usb_scuttle_anchored_urbs (9) - unanchor all an anchor's urbs
usb_submit_urb (9)   - issue an asynchronous transfer request for an endpoint
usb_unanchor_urb (9) - unanchors an URB
usb_unlink_anchored_urbs (9) - asynchronously cancel transfer requests en masse
usb_unlink_urb (9)   - abort/cancel a transfer request for an endpoint
usb_unpoison_anchored_urbs (9) - let an anchor be used successfully again
usb_urb_dir_in (9)   - check if an URB describes an IN transfer
usb_urb_dir_out (9)  - check if an URB describes an OUT transfer