All of lore.kernel.org
 help / color / mirror / Atom feed
From: bosmith <bosmith@actiontec.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] user-space  ===>>  U-Boot  ====>>  user-space ?
Date: Mon, 11 Oct 2010 18:44:19 -0700 (PDT)	[thread overview]
Message-ID: <29939469.post@talk.nabble.com> (raw)


Hi
Is there a simple way to send data from a Linux user-space program to
U-Boot?
How about from U-Boot up to a user-space program?

The data may change often enough that using fw_printenv and fw_setenv might
wear out the NAND storage area for the environment.

The use-case is to have two kernel images, two root file systems, and to let
a user-space application specify which to use and then force a reboot.  The
system will not lose power during this reboot.

This seems like a common enough problem.  Has anyone solved it before?

-- 
View this message in context: http://old.nabble.com/user-space--%3D%3D%3D%3E%3E--U-Boot--%3D%3D%3D%3D%3E%3E--user-space---tp29939469p29939469.html
Sent from the Uboot - Users mailing list archive at Nabble.com.

             reply	other threads:[~2010-10-12  1:44 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-10-12  1:44 bosmith [this message]
2010-10-12  5:16 ` [U-Boot] user-space ===>> U-Boot ====>> user-space ? Wolfgang Denk
2010-10-12 22:18 ` Swarthout Edward L-SWARTHOU

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=29939469.post@talk.nabble.com \
    --to=bosmith@actiontec.com \
    --cc=u-boot@lists.denx.de \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.