.\" This documentation was generated from the book titled "Bus-Independent Device Accesses", which is part of the Linux kernel source. .\" .\" Documentation by: Matthew Wilcox (matthew@wil.cx) .\" Documentation by: Alan Cox (alan@redhat.com) .\" Documentation copyright: 2001 Matthew Wilcox .\" This documentation comes with the following legal notice: .\" .\" This documentation is free software; you can redistribute .\" it and/or modify it under the terms of the GNU General Public .\" License as published by the Free Software Foundation; either .\" version 2 of the License, or (at your option) any later .\" version. .\" .\" This program is distributed in the hope that it will be .\" useful, but WITHOUT ANY WARRANTY; without even the implied .\" warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. .\" See the GNU General Public License for more details. .\" .\" You should have received a copy of the GNU General Public .\" License along with this program; if not, write to the Free .\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, .\" MA 02111-1307 USA .\" .\" For more details see the file COPYING in the source .\" distribution of Linux. .\" .\" For comments on the formatting of this manpage, please contact Michael Still .\" This manpage has been automatically generated by docbook2man .\" from a DocBook document. This tool can be found at: .\" .\" Please send any bug reports, improvements, comments, patches, .\" etc. to Steve Cheng . .TH "IOREMAP" "9" "14 August 2003" "" "" .SH NAME ioremap \- map bus memory into CPU space .SH SYNOPSIS .sp \fB .sp void * ioremap (unsigned long \fIoffset\fB, unsigned long \fIsize\fB); \fR .SH "ARGUMENTS" .TP \fB\fIoffset\fB\fR bus address of the memory .TP \fB\fIsize\fB\fR size of the resource to map .SH "DESCRIPTION" .PP ioremap performs a platform specific sequence of operations to make bus memory CPU accessible via the readb/readw/readl/writeb/ writew/writel functions and the other mmio helpers. The returned address is not guaranteed to be usable directly as a virtual address. .SH "ABOUT THIS DOCUMENT" .PP This documentation was generated with kernel version 2.6.0.