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From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
To: mathieu.poirier@linaro.org
Cc: linux-kernel@vger.kernel.org, rdunlap@xenotime.net,
	arve@android.com, kernel-team@android.com,
	john.stultz@linaro.org
Subject: Re: [PATCH v2] drivers/tty: Folding Android's keyreset driver in sysRQ
Date: Thu, 30 Aug 2012 16:01:29 -0700	[thread overview]
Message-ID: <20120830230129.GC21501@core.coreip.homeip.net> (raw)
In-Reply-To: <1346365854-28441-1-git-send-email-mathieu.poirier@linaro.org>

Hi Matthieu,

On Thu, Aug 30, 2012 at 04:30:54PM -0600, mathieu.poirier@linaro.org wrote:
> From: "Mathieu J. Poirier" <mathieu.poirier@linaro.org>
> 
> This patch adds keyreset functionality to the sysrq driver. It
> allows certain button/key combinations to be used in order to
> trigger device resets.
> 
> The first time the key-combo is detected a work function that syncs
> the filesystems is scheduled and the kernel rebooted. If all the keys
> are released and then pressed again, it calls panic. Reboot on panic
> should be set for this to work.  A platform device that specify a
> reset key-combo should be added to the board file to trigger the
> feature.

Why do we need to involve a platform device and not use, for example, a module
parameter, that could be set up from userspace?

Also, why do we need reset_fn() and not simply invoke SysRq-B handler
that should call ctrl_alt_del() for us?

Thanks.

-- 
Dmitry

  reply	other threads:[~2012-08-30 23:01 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-30 22:30 [PATCH v2] drivers/tty: Folding Android's keyreset driver in sysRQ mathieu.poirier
2012-08-30 23:01 ` Dmitry Torokhov [this message]
2012-08-31 21:52   ` Mathieu Poirier
2012-08-31 22:02     ` Alan Cox
2012-08-31 22:41       ` Dmitry Torokhov
2012-08-31 22:57         ` Mathieu Poirier
2012-08-31 23:22           ` Dmitry Torokhov
2012-09-04 21:53             ` Mathieu Poirier
2012-09-04 22:01               ` Alan Cox
2012-08-31 22:51       ` Mathieu Poirier
2012-09-01 19:18     ` Colin Cross

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