From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [Discussion] how to implement external power down for ARM
Date: Thu, 07 May 2015 11:43:15 +0200 [thread overview]
Message-ID: <4412805.fx6caR2qJ7@wuerfel> (raw)
In-Reply-To: <554B2DF5.4040600@huawei.com>
On Thursday 07 May 2015 17:18:45 Shannon Zhao wrote:
> On 2015/5/7 16:55, Arnd Bergmann wrote:
> > On Thursday 07 May 2015 10:39:35 Shannon Zhao wrote:
> >> I tried Ubuntu Trusty from Christoffer, when typing "system_powerdown"
> >> on QEMU monitor, "cat /dev/input/event0 | hexdump" shows the event is
> >> triggered but the guest doesn't poweroff.
> >
> > Can you try installing acpid by running 'sudo apt-get install acpid' in
> > the image? I suspect it should just work by scanning the event devices
> > even in the absence of ACPI on the platform.
> >
>
> Cool, I start acpid and the poweroff works.
Ok, great, thanks for confirming this! Have you tried reboot as well?
>From looking at the acpid source code, I suspect it does not work unless
extra configuration files are added, but that would be the same as for the
ACPI case.
Arnd
next prev parent reply other threads:[~2015-05-07 9:43 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-30 1:03 [Discussion] how to implement external power down for ARM Shannon Zhao
2015-04-30 8:03 ` Arnd Bergmann
2015-04-30 9:08 ` Peter Maydell
2015-04-30 9:19 ` Arnd Bergmann
2015-04-30 9:29 ` Mark Rutland
2015-04-30 9:56 ` Arnd Bergmann
2015-05-04 2:09 ` Shannon Zhao
2015-05-04 15:49 ` Arnd Bergmann
2015-05-05 2:57 ` Joel Stanley
2015-05-05 9:53 ` Arnd Bergmann
2015-05-05 10:51 ` Christoffer Dall
2015-05-05 10:55 ` Arnd Bergmann
2015-05-05 11:13 ` Shannon Zhao
2015-05-06 6:56 ` Shannon Zhao
2015-05-06 7:29 ` Arnd Bergmann
2015-05-06 8:19 ` Shannon Zhao
2015-05-06 8:37 ` Arnd Bergmann
2015-05-06 8:41 ` Shannon Zhao
2015-05-06 10:14 ` Christoffer Dall
2015-05-07 2:39 ` Shannon Zhao
2015-05-07 8:55 ` Arnd Bergmann
2015-05-07 9:18 ` Shannon Zhao
2015-05-07 9:43 ` Arnd Bergmann [this message]
2015-05-07 12:10 ` Shannon Zhao
2015-05-07 12:12 ` Peter Maydell
2015-05-07 12:18 ` Shannon Zhao
2015-05-07 12:34 ` Peter Maydell
2015-05-07 12:48 ` Arnd Bergmann
2015-05-07 13:02 ` Shannon Zhao
2015-04-30 13:38 ` Hanjun Guo
2015-05-04 1:55 ` Shannon Zhao
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=4412805.fx6caR2qJ7@wuerfel \
--to=arnd@arndb.de \
--cc=linux-arm-kernel@lists.infradead.org \
/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.