Provided by: linux-doc-2.6.15_2.6.15-23.39_all bug

NAME

       usb_buffer_unmap_sg - free DMA mapping(s) for a scatterlist

SYNOPSIS

       void usb_buffer_unmap_sg  (struct usb_device * dev, unsigned pipe,
                                   struct scatterlist * sg, int n_hw_ents);

ARGUMENTS

       dev    device to which the scatterlist will be mapped

       pipe   endpoint defining the mapping direction

       sg     the scatterlist to unmap

       n_hw_ents
              the positive return value from usb_buffer_map_sg

DESCRIPTION

       Reverses the effect of usb_buffer_map_sg.