1. NAME▲

usb_buffer_unmap_sg - free DMA mapping(s) for a scatterlist

2. SYNOPSIS ▲

void usb_buffer_unmap_sg(const struct usb_device *  dev , int  is_in , struct scatterlist *  sg , int  n_hw_ents );

3. ARGUMENTS ▲

dev
    device to which the scatterlist will be mapped

is_in
    mapping transfer direction

sg
    the scatterlist to unmap

n_hw_ents
    the positive return value from usb_buffer_map_sg

4. DESCRIPTION ▲

Reverses the effect of usb_buffer_map_sg.

5. COPYRIGHT ▲