From: Arnd Bergmann <arnd@arndb.de>
To: David Woodhouse <dwmw2@infradead.org>
Cc: "Jörn Engel" <joern@lazybastard.org>,
Marco <marco.stornelli@gmail.com>,
"Sam Ravnborg" <sam@ravnborg.org>,
"Tim Bird" <tim.bird@am.sony.com>,
"Chris Simmonds" <chris@2net.co.uk>,
"Linux FS Devel" <linux-fsdevel@vger.kernel.org>,
"Linux Embedded" <linux-embedded@vger.kernel.org>,
"Linux Kernel" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 06/14] Pramfs: Include files
Date: Tue, 23 Jun 2009 23:55:32 +0200 [thread overview]
Message-ID: <200906232355.34134.arnd@arndb.de> (raw)
In-Reply-To: <1245791743.25547.3517.camel@macbook.infradead.org>
On Tuesday 23 June 2009, David Woodhouse wrote:
> And dd on /dev/mem would work, surely?
Actually, reading from /dev/mem is only valid on real RAM. If the nvram
is part of an IO memory mapping, you have to do mmap()+memcpy() rather
than read(). So dd won't do it, but it's still easy to read from user
space.
> I'd definitely recommend making it fixed-endian. Not doing so for JFFS2
> was a mistake I frequently regretted.
Right.
Arnd <><
next prev parent reply other threads:[~2009-06-23 21:55 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-13 13:21 [PATCH 06/14] Pramfs: Include files Marco
2009-06-13 14:04 ` Sam Ravnborg
2009-06-13 22:59 ` Arnd Bergmann
2009-06-14 7:15 ` Marco
2009-06-21 17:07 ` Marco
2009-06-21 20:22 ` Arnd Bergmann
2009-06-22 6:23 ` Marco Stornelli
2009-06-22 6:23 ` Marco Stornelli
2009-06-22 11:17 ` Arnd Bergmann
2009-06-22 18:05 ` Marco
2009-06-22 18:33 ` Arnd Bergmann
2009-06-22 19:31 ` Chris Simmonds
2009-06-22 20:30 ` Sam Ravnborg
2009-06-22 22:00 ` Tim Bird
2009-06-23 4:21 ` Sam Ravnborg
2009-06-23 17:38 ` Marco
2009-06-23 19:26 ` Jörn Engel
2009-06-23 19:26 ` Jörn Engel
2009-06-23 21:15 ` David Woodhouse
2009-06-23 21:15 ` David Woodhouse
2009-06-23 21:55 ` Arnd Bergmann [this message]
2009-06-24 6:32 ` Marco Stornelli
2009-06-24 15:30 ` Arnd Bergmann
2009-06-24 16:49 ` Marco
2009-06-22 21:41 ` Jörn Engel
2009-06-22 21:41 ` Jörn Engel
2009-06-22 22:20 ` David Woodhouse
2009-06-22 22:20 ` David Woodhouse
2009-06-22 22:20 ` David Woodhouse
2009-06-23 5:57 ` Jörn Engel
2009-06-23 8:31 ` David Woodhouse
2009-06-23 8:31 ` David Woodhouse
2009-06-23 8:31 ` David Woodhouse
2009-06-22 23:07 ` Arnd Bergmann
2009-06-22 23:07 ` Arnd Bergmann
2009-06-22 23:07 ` Arnd Bergmann
2009-06-23 6:40 ` Marco Stornelli
2009-06-23 6:40 ` Marco Stornelli
2009-06-14 7:15 ` Marco
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