usb_get_from_anchor (9) - Linux Manuals
usb_get_from_anchor: get an anchor's oldest urb
usb_get_from_anchor - get an anchor's oldest urb
struct urb * usb_get_from_anchor(struct usb_anchor
- the anchor whose urb you want
This will take the oldest urb from an anchor, unanchor and return it
The oldest urb from anchor, or NULL if anchor has no urbs associated with it.