'\" t
.\"     Title: copy_from_user_toio
.\"    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: Management of Cards and Devices
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "COPY_FROM_USER_TOIO" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Management of Cards and Device"
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.SH "NAME"
copy_from_user_toio \- copy data from user\-space to mmio\-space
.SH "SYNOPSIS"
.HP \w'int\ copy_from_user_toio('u
.BI "int copy_from_user_toio(volatile\ void\ __iomem\ *\ " "dst" ", const\ void\ __user\ *\ " "src" ", size_t\ " "count" ");"
.SH "ARGUMENTS"
.PP
\fIdst\fR
.RS 4
the destination pointer on mmio\-space
.RE
.PP
\fIsrc\fR
.RS 4
the source pointer on user\-space
.RE
.PP
\fIcount\fR
.RS 4
the data size to copy in bytes
.RE
.SH "DESCRIPTION"
.PP
Copies the data from user\-space to mmio\-space\&.
.SH "RETURN"
.PP
Zero if successful, or non\-zero on failure\&.
.SH "COPYRIGHT"
.br