[MinnowBoard] elinux-MinnowBoard Digest, Vol 88, Issue 1

Duane A. Damiano duaneaugust at gmail.com
Thu Oct 29 04:33:55 UTC 2015


Markus,

That worked!  Thank you very much.

Duane


On 10/28/2015 05:00 AM, elinux-minnowboard-request at lists.elinux.org wrote:
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> Today's Topics:
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>     1. Shutdown Without Keyboard or Mouse? (Duane A. Damiano)
>     2. Re: Shutdown Without Keyboard or Mouse? (Markus Maier)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 27 Oct 2015 20:43:52 -0700
> From: "Duane A. Damiano" <duaneaugust at gmail.com>
> To: elinux-minnowboard at lists.elinux.org
> Subject: [MinnowBoard] Shutdown Without Keyboard or Mouse?
> Message-ID: <56304478.9050607 at gmail.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> I would like to use a Minnow Board Max (MBM) to display the video from a
> USB camera.  It doesn't need to do anything else and it will not be
> connected to any network.
>
> I have already figured out how to auto-login and auto-start a program
> (cheese) to display the video.  However, I have not yet figured out a
> way to properly power down the MBM.
>
> Normally, the user would power down by clicking the appropriate menu
> items in the GUI or by running a command like "halt" or "shutdown -h
> now" in a command window.  But in this case, the user will not have a
> keyboard or a mouse.  Can anyone think of a simple way to implement a
> graceful shutdown, without just turning off the power?
>
> I thought about connecting a button or switch to one of the GPIO pins
> and watching it with a script.  When the pin goes low, I could run a
> shutdown command.  But, the standard Debian kernel for the MBM does not
> recognize the GPIO pins.  (It doesn't create /sys/class/gpio and
> compiling a new kernel is beyond my comfort level.)
>
> Any ideas for how to do this.  Or, is there some other hardware that
> would be better than the MBM for this task?
>
> Duane
>
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 28 Oct 2015 08:43:16 +0000 (UTC)
> From: Markus Maier <maier.m at web.de>
> To: elinux-minnowboard at lists.elinux.org
> Subject: Re: [MinnowBoard] Shutdown Without Keyboard or Mouse?
> Message-ID: <loom.20151028T093953-628 at post.gmane.org>
> Content-Type: text/plain; charset=us-ascii
>
> Duane A. Damiano <duaneaugust at ...> writes:
>
>
>> Any ideas for how to do this.  Or, is there some other hardware that
>> would be better than the MBM for this task?
>>
> Hi Duane,
>
> you might want to populate jumper J5 for that. You can use an external
> switch connected to J5 to shutdown the board just the same way as pressing
> the power switch SW1 would do. No watchdog, no script needed!
>
> Cheers
> Markus
>
>
>
>
>
> ------------------------------
>
> Subject: Digest Footer
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> ------------------------------
>
> End of elinux-MinnowBoard Digest, Vol 88, Issue 1
> *************************************************



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