From: Jean-Christophe BEGUE <begue.jc@gmail.com>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: Programatically write in a file in the environnent with a hush command
Date: Wed, 27 May 2015 15:52:00 +0200 [thread overview]
Message-ID: <CABP==CKP6xFYV1V2t4KbALGPq0g3ERmmEmkVYHnYE3p=JiOPqg@mail.gmail.com> (raw)
In-Reply-To: <20150527065300.GP6325@pengutronix.de>
I didn't noticed -a and -o options for echo. That suits my needs, but
"nv" is exactly what I'm trying to acheive.
I'll use the kernel command line as well on early phases of my software boot.
Thank you!
Jean-Christophe BEGUE
http://www.devisubox.com
On Wed, May 27, 2015 at 8:53 AM, Sascha Hauer <s.hauer@pengutronix.de> wrote:
> Hi Jean-Christophe,
>
> On Tue, May 26, 2015 at 05:41:06PM +0200, Jean-Christophe BEGUE wrote:
>> Hello,
>>
>> I'm trying to pass a value from Barebox to the operating system, using
>> the usreland command bareboxenv -l.
>>
>> My problem is : How should I write that status from my hush barebox script?
>>
>> echo $mystatus > /env/data/my_status_file
>>
>> The above command doesn't work as '>' is not implemented.
>>
>> I've the feeling that I'm missing something?
>
> Besides the ways Alexander just mentioned you could also add something
> to the kernel cmdline and parse /proc/cmdline later in userspace.
> Still another possibility is to add nodes/properties to the device tree
> using the of_* commands.
>
> Sascha
>
>
> --
> Pengutronix e.K. | |
> Industrial Linux Solutions | http://www.pengutronix.de/ |
> Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
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prev parent reply other threads:[~2015-05-27 13:52 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-26 15:41 Jean-Christophe BEGUE
2015-05-27 6:08 ` Alexander Richter
2015-05-27 6:24 ` Alexander Richter
2015-05-27 6:53 ` Sascha Hauer
2015-05-27 13:52 ` Jean-Christophe BEGUE [this message]
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