'\" t
.\"     Title: usb_buffer_dmasync_sg
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: USB Core APIs
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "USB_BUFFER_DMASYNC_S" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "USB Core APIs"
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.SH "NAME"
usb_buffer_dmasync_sg \- synchronize DMA and CPU view of scatterlist buffer(s)
.SH "SYNOPSIS"
.HP \w'void\ usb_buffer_dmasync_sg('u
.BI "void usb_buffer_dmasync_sg(const\ struct\ usb_device\ *\ " "dev" ", int\ " "is_in" ", struct\ scatterlist\ *\ " "sg" ", int\ " "n_hw_ents" ");"
.SH "ARGUMENTS"
.PP
\fIdev\fR
.RS 4
device to which the scatterlist will be mapped
.RE
.PP
\fIis_in\fR
.RS 4
mapping transfer direction
.RE
.PP
\fIsg\fR
.RS 4
the scatterlist to synchronize
.RE
.PP
\fIn_hw_ents\fR
.RS 4
the positive return value from usb_buffer_map_sg
.RE
.SH "DESCRIPTION"
.PP
Use this when you are re\-using a scatterlist\*(Aqs data buffers for another USB request\&.
.SH "COPYRIGHT"
.br