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.TH "DFU\-PREFIX" "1" "September 2021" "dfu\-util 0.11" ""
.hy
.SH NAME
.PP
dfu\-prefix \- add, check, or remove special firmware file prefix
.SH SYNOPSIS
.PP
\f[B]dfu\-prefix\f[R] [ \f[B]\-s\f[R] \f[I]address\f[R] | \f[B]\-L\f[R]
] \f[B]\-\-add\f[R] \f[I]DFU_FILE\f[R]
.PD 0
.P
.PD
\f[B]dfu\-prefix\f[R] [ \f[B]\-T\f[R] | \f[B]\-L\f[R] ]
\f[B]\-\-check\f[R] \f[I]DFU_FILE\f[R]
.PD 0
.P
.PD
\f[B]dfu\-prefix\f[R] [ \f[B]\-T\f[R] | \f[B]\-L\f[R] ]
\f[B]\-\-delete\f[R] \f[I]DFU_FILE\f[R]
.PD 0
.P
.PD
\f[B]dfu\-prefix\f[R] \f[B]\-\-help\f[R]
.PD 0
.P
.PD
\f[B]dfu\-prefix\f[R] \f[B]\-\-version\f[R]
.SH DESCRIPTION
.PP
The program \f[B]dfu\-prefix\f[R] can be used to add, check or remove a
prefix used by certain hardware manufacturers.
The Stellaris format from TI and the LPC format from NXP is supported.
.PP
Note that a standard DFU firmware file has no concept of a prefix, and a
DFU host tool like dfu\-util passes the prefix on to the device as part
of the normal firmware payload.
.SH OPTIONS
.TP
.B \-s, \-\-stellaris\-address \f[I]address\f[R]
(in combination with \-\-add) Add TI Stellaris address prefix to file
.TP
.B \-T, \-\-stellaris
(in combination with \-\-delete or \-\-check) Act on TI Stellaris
address prefix of file
.TP
.B \-L, \-\-lpc\-prefix
(in combination with \-\-add or \-\-delete or \-\-check) Use NXP LPC DFU
prefix format
.TP
.B \-h, \-\-help
Displays a help message.
.TP
.B \-V, \-\-version
Displays the software version.
.SH EXAMPLES
.TP
.B \f[B]dfu\-prefix\f[R] \-\-stellaris\-address 0x0100 \-\-add firmware.dfu
Adds a Stellaris prefix with load address 0x0100
.TP
.B \f[B]dfu\-prefix\f[R] \-\-stellaris \-\-check firmware.dfu
Checks the file firmware.dfu for a Stellaris prefix
.TP
.B \f[B]dfu\-prefix\f[R] \-\-lpc\-prefix \-\-delete firmware.dfu
Removes a LPC prefix from the file firmware.dfu
.SH EXIT VALUES
.TP
.B \f[B]0\f[R]
Success (also if prefix is missing)
.TP
.B \f[B]\-64\f[R]
Usage error
.SH BUGS
.PP
https://sourceforge.net/p/dfu\-util/tickets/
.SH COPYRIGHT
.PP
License GPLv2: GNU GPL version 2
.SH SEE ALSO
.PP
\f[B]dfu\-suffix\f[R](1), \f[B]dfu\-util\f[R](1)
.SH AUTHORS
See AUTHORS file in source.