Thanks a lot for the responses!
In fact, i saw a switch called "mode switch" in the ALIX documentation
(http://www.pcengines.ch/pdf/alix2.pdf) Pag. 20.
So, I was very excited with the news and thought about writing the
script Andreas suggested, to monitor when this switch is pressed down
and then execute a "shutdown -h now".
But... when i did test the "shutdown command" my ALIX board does not
powered off. All the services are stopped and the operating system is
inactive, but it remains consuming power. This state is similar to when
a MS Windows machine displays the message "It is Now Safe to Turn Off
Your Computer"
I know is not possible to send a "power off" signal to my single 15VDC
PSU like in a ATX PSU... So i think am now stuck again :(
-- Edgar
On 09/23/2010 01:57 AM, Andreas Delleske wrote:
Dear Edgar,
I am a newbie, so maybe my question is a little stupid :( ... but anyone
knows how to connect a power button to the alix2dX board?
I have connected a hard drive to this board and would be great to shutdown
the operating system gracefully.
there is no such thing as a power button on the alix2 boards, they're
intended to run 24/7.
Well there IS an option (for ALIX 3D3 at least) to solder a power
button to the ALIX as ALIX has a general purpose I/O.
http://www.twam.info/linux/gpio-on-alix3d3
http://voyage-linux.34677.n3.nabble.com/Fwd-What-about-GPIO-support-for-ALIX-3D3-td875443.html
You might then provide a daemon or something else to detect operation
/ processing interrupt (if possible?) of the switch and then shutdown
-h now.
The following is for the WRAP board, so maybe not useful for the ALIX:
http://wiki.voyage.hk/dokuwiki/doku.php?id=wrap_switches&s=gpio
I did not try anything like that, I'm only using the LED and they work fine.
I think this might be a useful option to implement or research in
future voyage versions, as we might usw ALIX with VGA as a lightweight
terminel (see LTSP project:
https://wiki.kip.uni-heidelberg.de/KIPwiki/index.php/EDV:LTSP/alix3d3
- in German)
--
Edgar Landívar
MEGATELCON S. A.
PaloSanto Solutions -- Open Source Innovation http://www.palosanto.com
http://www.elastix.org Oficina Guayaquil, Ecuador: Cdla. Nueva Kennedy Calle E
#222
Telfefax: +5934-228-3268 / +5934-229-4440 / +5934-228-4356 Oficina Quito,
Ecuador: Calle Inglaterra E3-57 y Av. República
Teléfono: +5932-252-9892
http://flickr.com/photos/29074...@n02/
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** Al hacerlo contribuyes con nuestro proyecto libre.
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