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Query: usb_buffer_unmap_sg

OS: centos

Section: 9

Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar

USB_BUFFER_UNMAP_SG(9)						   USB Core APIs					    USB_BUFFER_UNMAP_SG(9)

NAME
       usb_buffer_unmap_sg - free DMA mapping(s) for a scatterlist

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

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

DESCRIPTION
       Reverses the effect of usb_buffer_map_sg.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						    USB_BUFFER_UNMAP_SG(9)

centos man page for usb_buffer_unmap_sg