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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML><HEAD><TITLE>Man page of DFU-UTIL</TITLE>
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1">
</HEAD><BODY>
<H1>DFU-UTIL(1)</H1>

<A NAME="lbAB">&nbsp;</A>
<H2>NAME</H2>

dfu-util - Device firmware update (DFU) USB programmer
<A NAME="lbAC">&nbsp;</A>
<H2>SYNOPSIS</H2>


<DL COMPACT>
<DT>
<B>dfu-util</B>

<B>-l </B>

[<B>-v</B>]

[<B>-d</B>

<I>vid:pid</I>[,<I>vid:pid</I>]]

[<B>-p</B>

<I>path</I>]

[<B>-c</B>

<I>configuration</I>]

[<B>-i</B>

<I>interface</I>]

[<B>-a</B>

<I>alt-intf</I>]

[<B>-S</B>

<I>serial</I>[,<I>serial</I>]]


<DT>
<B>dfu-util</B>

[<B>-v</B>]

[<B>-d</B>

<I>vid:pid</I>[,<I>vid:pid</I>]]

[<B>-p</B>

<I>path</I>]

[<B>-c</B>

<I>configuration</I>]

[<B>-i</B>

<I>interface</I>]

[<B>-a</B>

<I>alt-intf</I>]

[<B>-S</B>

<I>serial</I>[,<I>serial</I>]]

[<B>-t</B>

<I>size</I>]

[<B>-Z</B>

<I>size</I>]

[<B>-s</B>

<I>address</I>]

[<B>-R</B>]

[<B>-D</B>|<B>-U</B>

<I>file</I>]


<DT>
<B>dfu-util</B>

[<B>-hV</B>]

</DL>
<A NAME="lbAD">&nbsp;</A>
<H2>DESCRIPTION</H2>

<B>dfu-util</B>

is a program that implements the host (computer) side of the USB DFU
(Universal Serial Bus Device Firmware Upgrade) protocol.
<P>
dfu-util communicates with devices that implement the device side of the
USB DFU protocol, and is often used to upgrade the firmware of such
devices.
<A NAME="lbAE">&nbsp;</A>
<H2>OPTIONS</H2>

<DL COMPACT>
<DT><B>-l, --list</B>

<DD>
List the currently attached DFU capable USB devices.
<DT><B>-d, --device</B> [<I>Run-Time VENDOR</I>]:[<I>Run-Time PRODUCT</I>][,[<I>DFU Mode VENDOR</I>]:[<I>DFU Mode PRODUCT</I>]]

<DD>
<DL COMPACT><DT><DD>
Specify run-time and/or DFU mode vendor and/or product IDs of the DFU device
to work with. <B>VENDOR</B> and <B>PRODUCT</B> are hexadecimal numbers (no prefix
needed), &quot;*&quot; (match any), or &quot;-&quot; (match nothing). By default, any DFU capable
device in either run-time or DFU mode will be considered.
<P>
If you only have one standards-compliant DFU device attached to your computer,
this parameter is optional. However, as soon as you have multiple DFU devices
connected, dfu-util will detect this and abort, asking you to specify which
device to use.
<P>
If only run-time IDs are specified (e.g. &quot;<B>--device 1457:51ab</B>&quot;), then in
addition to the specified run-time IDs, any DFU mode devices will also be
considered. This is beneficial to allow a DFU capable device to be found
again after a switch to DFU mode, since the vendor and/or product ID of a
device usually changes in DFU mode.
<P>
If only DFU mode IDs are specified (e.g. &quot;<B>--device ,951:26</B>&quot;), then all
run-time devices will be ignored, making it easy to target a specific device in
DFU mode.
<P>
If both run-time and DFU mode IDs are specified (e.g. &quot;<B>--device
1457:51ab,:2bc</B>&quot;), then unspecified DFU mode components will use the run-time
value specified.
<P>
Examples:
<DL COMPACT>
<DT><B>--device 1457:51ab,951:26</B>

<DD>
<BR>

Work with a device in run-time mode with
vendor ID 0x1457 and product ID 0x51ab, or in DFU mode with vendor ID 0x0951
and product ID 0x0026
<P>
<DT><B>--device 1457:51ab,:2bc</B>

<DD>
<BR>

Work with a device in run-time mode with vendor ID 0x1457 and product ID
0x51ab, or in DFU mode with vendor ID 0x1457 and product ID 0x02bc
<P>
<DT><B>--device 1457:51ab</B>

<DD>
<BR>

Work with a device in run-time mode with vendor ID 0x1457 and product ID
0x51ab, or in DFU mode with any vendor and product ID
<P>
<DT><B>--device ,951:26</B>

<DD>
<BR>

Work with a device in DFU mode with vendor ID 0x0951 and product ID 0x0026
<P>
<DT><B>--device *,-</B>

<DD>
<BR>

Work with any device in run-time mode, and ignore any device in DFU mode
<P>
<DT><B>--device ,</B>

<DD>
<BR>

Ignore any device in run-time mode, and Work with any device in DFU mode
</DL>
</DL>

<DT><B>-p, --path</B> BUS-PORT. ... .PORT

<DD>
Specify the path to the DFU device.
<DT><B>-c, --cfg</B> CONFIG-NR

<DD>
Specify the configuration of the DFU device. Note that this is only used for matching, the configuration is not set by dfu-util.
<DT><B>-i, --intf</B> INTF-NR

<DD>
Specify the DFU interface number.
<DT><B>-a, --alt</B> ALT

<DD>
Specify the altsetting of the DFU interface by name or by number.
<DT><B>-S, --serial</B> [<I>Run-Time SERIAL</I>][,[<I>DFU Mode SERIAL</I>]]

<DD>
Specify the run-time and DFU mode serial numbers used to further restrict
device matches.  If multiple, identical DFU devices are simultaneously
connected to a system then vendor and product ID will be insufficient for
targeting a single device.  In this situation, it may be possible to use this
parameter to specify a serial number which also must match.
<P>
If only a single serial number is specified, then the same serial number is
used in both run-time and DFU mode. An empty serial number will match any
serial number in the corresponding mode.
<DT><B>-t, --transfer-size  SIZE</B>

<DD>
Specify the number of bytes per USB transfer. The optimal value is
usually determined automatically so this option is rarely useful. If
you need to use this option for a device, please report it as a bug.
<DT><B>-Z, --upload-size  SIZE</B>

<DD>
Specify the expected upload size, in bytes.
<DT><B>-U, --upload</B> FILE

<DD>
Read firmware from device into
<B>FILE</B>.

<DT><B>-D, --download</B> FILE

<DD>
Write firmware from
<B>FILE</B>

into device. When
<B>FILE</B>

is -, the firmware is read from stdin.
<DT><B>-R, --reset</B>

<DD>
Issue USB reset signalling after upload or download has finished.
<DT><B>-s, --dfuse-address</B> address

<DD>
Specify target address for raw binary download/upload on DfuSe devices. Do
<B>not</B>

use this for downloading DfuSe (.dfu) files. Modifiers can be added
to the address, separated by a colon, to perform special DfuSE commands such
as &quot;leave&quot; DFU mode, &quot;unprotect&quot; and &quot;mass-erase&quot; flash memory.
<DT><B>-v, --verbose</B>

<DD>
Print more information about dfu-util's operation. A second
<B>-v</B>

will turn on verbose logging of USB requests. Repeat this option to further
increase verbosity.
<DT><B>-h, --help</B>

<DD>
Show a help text and exit.
<DT><B>-V, --version</B>

<DD>
Show version information and exit.
</DL>
<A NAME="lbAF">&nbsp;</A>
<H2>EXAMPLES</H2>

<A NAME="lbAG">&nbsp;</A>
<H3>Using dfu-util in the OpenMoko project</H3>

(with the Neo1973 hardware)
<P>

Flashing the rootfs:
<BR>

<B>  $ dfu-util -a rootfs -R -D /path/to/openmoko-devel-image.jffs2</B>

<P>

Flashing the kernel:
<BR>

<B>  $ dfu-util -a kernel -R -D /path/to/uImage</B>

<P>

Flashing the bootloader:
<BR>

<B>  $ dfu-util -a u-boot -R -D /path/to/u-boot.bin</B>

<P>

Copying a kernel into RAM:
<BR>

<B>  $ dfu-util -a 0 -R -D /path/to/uImage</B>

<P>
Once this has finished, the kernel will be available at the default load
address of 0x32000000 in Neo1973 RAM.
<B>Note:</B>

You cannot transfer more than 2MB of data into RAM using this method.
<P>
<A NAME="lbAH">&nbsp;</A>
<H3>Using dfu-util with a DfuSe device</H3>

<P>

Flashing a
<B>.dfu</B>

(special DfuSe format) file to the device:
<BR>

<B>  $ dfu-util -a 0 -D /path/to/dfuse-image.dfu</B>

<P>

Reading out 1 KB of flash starting at address 0x8000000:
<BR>

<B>  $ dfu-util -a 0 -s 0x08000000:1024 -U newfile.bin</B>

<P>

Flashing a binary file to address 0x8004000 of device memory and
ask the device to leave DFU mode:
<BR>

<B>  $ dfu-util -a 0 -s 0x08004000:leave -D /path/to/image.bin</B>


<A NAME="lbAI">&nbsp;</A>
<H2>BUGS</H2>

Please report any bugs to the dfu-util bug tracker at
<B><A HREF="http://sourceforge.net/p/dfu-util/tickets/">http://sourceforge.net/p/dfu-util/tickets/</A></B>.

Please use the
<I>--verbose</I> option (repeated as necessary) to provide more

information in your bug report.
<A NAME="lbAJ">&nbsp;</A>
<H2>SEE ALSO</H2>

The dfu-util home page is
<B><A HREF="http://dfu-util.sourceforge.net">http://dfu-util.sourceforge.net</A></B>

<A NAME="lbAK">&nbsp;</A>
<H2>HISTORY</H2>

dfu-util was originally written for the OpenMoko project by
Weston Schmidt &lt;<A HREF="mailto:weston_schmidt@yahoo.com">weston_schmidt@yahoo.com</A>&gt; and 
Harald Welte &lt;<A HREF="mailto:hwelte@hmw-consulting.de">hwelte@hmw-consulting.de</A>&gt;. Over time, nearly complete
support of DFU 1.0, DFU 1.1 and DfuSe (&quot;1.1a&quot;) has been added.
<A NAME="lbAL">&nbsp;</A>
<H2>LICENCE</H2>

<B>dfu-util</B>

is covered by the GNU General Public License (GPL), version 2 or later.
<A NAME="lbAM">&nbsp;</A>
<H2>COPYRIGHT</H2>

This manual page was originally written by Uwe Hermann &lt;<A HREF="mailto:uwe@hermann-uwe.de">uwe@hermann-uwe.de</A>&gt;,
and is now part of the dfu-util project.
<P>

<HR>
<A NAME="index">&nbsp;</A><H2>Index</H2>
<DL>
<DT><A HREF="#lbAB">NAME</A><DD>
<DT><A HREF="#lbAC">SYNOPSIS</A><DD>
<DT><A HREF="#lbAD">DESCRIPTION</A><DD>
<DT><A HREF="#lbAE">OPTIONS</A><DD>
<DT><A HREF="#lbAF">EXAMPLES</A><DD>
<DL>
<DT><A HREF="#lbAG">Using dfu-util in the OpenMoko project</A><DD>
<DT><A HREF="#lbAH">Using dfu-util with a DfuSe device</A><DD>
</DL>
<DT><A HREF="#lbAI">BUGS</A><DD>
<DT><A HREF="#lbAJ">SEE ALSO</A><DD>
<DT><A HREF="#lbAK">HISTORY</A><DD>
<DT><A HREF="#lbAL">LICENCE</A><DD>
<DT><A HREF="#lbAM">COPYRIGHT</A><DD>
</DL>
<HR>
This document was created by man2html,
using the doc/dfu-util.1 manual page from dfu-util 0.8.<BR>
Time: 14:40:57 GMT, September 13, 2014
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