From: Albert ARIBAUD <albert.u.boot@aribaud.net>
To: u-boot@lists.denx.de
Subject: [U-Boot] Loop Variable through to user space
Date: Tue, 3 Feb 2015 23:27:19 +0100 [thread overview]
Message-ID: <20150203232719.1ac240a0@lilith> (raw)
In-Reply-To: <54D0C5B8.60800@googlemail.com>
Hello Andr?,
On Tue, 03 Feb 2015 13:57:28 +0100, Andr? Schaller
<an.schall@googlemail.com> wrote:
> Hi all,
>
> during the execution of th MLO I create a variable, whose value I want
> to make accessible to user space applications in Android. How can this
> be achieved?
>
> One way would be to write the contents of the variable to external
> memory and let it read by the user space process. However, I would need
> to make sure that during boot no other process is overwriting the address.
>
> Do you know of any other ways?
Kind of a hack, but maybe you could pass the value somehow through the
kernel boot parameters? I assume that a meaningless parameter does not
affect the kernel but can still be parsed from /proc/cmdline.
> Best,
> Andr?
Amicalement,
--
Albert.
next prev parent reply other threads:[~2015-02-03 22:27 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-03 12:57 [U-Boot] Loop Variable through to user space André Schaller
2015-02-03 22:27 ` Albert ARIBAUD [this message]
2015-02-04 19:10 ` André Schaller
2015-02-05 4:04 ` Simon Glass
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