linux-kernel - Re: Laptop shock detection and harddisk protection

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Date:	Fri, 12 Sep 2008 15:28:49 +0200
From:	Bodo Eggert <7eggert@....de>
To:	Tejun Heo <tj@...nel.org>, multinymous@...il.com,
	Elias Oltmanns <eo@...ensachen.de>,
	Thomas Renninger <trenn@...e.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	IDE/ATA development list <linux-ide@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	IDE/ATA development list <linux-ide@...r.kernel.org>
Subject: Re: Laptop shock detection and harddisk protection

Tejun Heo <tj@...nel.org> wrote:

> 1. How should the shock interface look like?  As we're gonna need
>    userland daemon one way or the other, we can use the userland
>    daemon to glue all the interfaces but it would be much better to
>    have a unified interface.  Although there seem to be several
>    different variants, they don't differ all that much and creating a
>    new interface every time is painful.  I think we can get by with a
>    sysfs interface with notification.

It should provide a connection to the corresponding device. Imagine an USB
case having a sensor, being connected to a desktop system. You would want
to exactly protect the enclosed USB device, and possibly non-protected USB
devices, too, but not halt the internal disks.

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