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flashrom.8: explain read accesses as part of the write operation

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Corresponding to flashrom svn r1378.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
This commit is contained in:
Stefan Tauner 2011-07-21 19:52:00 +00:00
parent 274a20d7d2
commit ac54fbe908
1 changed files with 10 additions and 3 deletions
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13
flashrom.8
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@ -45,6 +45,13 @@ Write
into flash ROM. This will first automatically into flash ROM. This will first automatically
.B erase .B erase
the chip, then write to it. the chip, then write to it.
.sp
In the process the chip is also read several times. First an in-memory backup
is made for disaster recovery and to be able to skip regions that are
already equal to the image file. This copy is updated along with the write
operation. In case of erase errors it is even re-read completely. After
writing has finished and if verification is enabled, the whole flash chip is
read out and compared with the input image.
.TP .TP
.B "\-n, \-\-noverify" .B "\-n, \-\-noverify"
Skip the automatic verification of flash ROM contents after writing. Using this Skip the automatic verification of flash ROM contents after writing. Using this
@ -541,7 +548,7 @@ unusable unless you can desolder the flash chip and have a full flash chip
backup. This is caused by the embedded controller (EC) present in many laptops, backup. This is caused by the embedded controller (EC) present in many laptops,
which interacts badly with any flash attempts. This is a hardware limitation which interacts badly with any flash attempts. This is a hardware limitation
and flashrom will attempt to detect it and abort immediately for safety reasons. and flashrom will attempt to detect it and abort immediately for safety reasons.
.SH LICENCE .SH LICENSE
.B flashrom .B flashrom
is covered by the GNU General Public License (GPL), version 2. Some files are is covered by the GNU General Public License (GPL), version 2. Some files are
additionally available under the GPL (version 2, or any later version). additionally available under the GPL (version 2, or any later version).
@ -623,6 +630,6 @@ some others, please see the flashrom svn changelog for details.
.br .br
All authors can be reached via email at <flashrom@flashrom.org>. All authors can be reached via email at <flashrom@flashrom.org>.
.PP .PP
This manual page was written by Uwe Hermann <uwe@hermann-uwe.de> This manual page was written by Uwe Hermann <uwe@hermann-uwe.de>,
and Carl-Daniel Hailfinger. Carl-Daniel Hailfinger and others.
It is licensed under the terms of the GNU GPL (version 2 or later). It is licensed under the terms of the GNU GPL (version 2 or later).