'\" t
.\"     Title: usb_free_coherent
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: USB Core APIs
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "USB_FREE_COHERENT" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "USB Core APIs"
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.SH "NAME"
usb_free_coherent \- free memory allocated with \fBusb_alloc_coherent\fR
.SH "SYNOPSIS"
.HP \w'void\ usb_free_coherent('u
.BI "void usb_free_coherent(struct\ usb_device\ *\ " "dev" ", size_t\ " "size" ", void\ *\ " "addr" ", dma_addr_t\ " "dma" ");"
.SH "ARGUMENTS"
.PP
\fIdev\fR
.RS 4
device the buffer was used with
.RE
.PP
\fIsize\fR
.RS 4
requested buffer size
.RE
.PP
\fIaddr\fR
.RS 4
CPU address of buffer
.RE
.PP
\fIdma\fR
.RS 4
DMA address of buffer
.RE
.SH "DESCRIPTION"
.PP
This reclaims an I/O buffer, letting it be reused\&. The memory must have been allocated using
\fBusb_alloc_coherent\fR, and the parameters must match those provided in that allocation request\&.
.SH "COPYRIGHT"
.br