From: Jesse Barnes <jbarnes@virtuousgeek.org>
To: Stefan Schmidt <stefan@datenfreihafen.org>
Subject: Re: [patch 2/3] acpi: Add a docked sysfs file to the dock driver.
Date: Tue, 12 Dec 2006 14:31:10 -0800
User-Agent: KMail/1.9.5
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>,
       Holger Macht <hmacht@suse.de>, len.brown@intel.com,
       linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
       Brandon Philips <brandon@ifup.org>, Kay Sievers <kay.sievers@vrfy.org>
References: <20061204224037.713257809@localhost.localdomain> <20061211120508.2f2704ac.kristen.c.accardi@intel.com> <20061212221504.GA4104@datenfreihafen.org>
In-Reply-To: <20061212221504.GA4104@datenfreihafen.org>
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On Tuesday, December 12, 2006 2:15 pm, Stefan Schmidt wrote:
> Hello.
>
> On Mon, 2006-12-11 at 12:05, Kristen Carlson Accardi wrote:
> > On Sat, 9 Dec 2006 12:59:58 +0100
> >
> > Holger Macht <hmacht@suse.de> wrote:
> > > Well, I like to have them ;-)
> >
> > Ok - how is this?
> >
> > Send a uevent to indicate a device change whenever we dock or
> > undock, so that userspace may now check the dock status via
> > sysfs.
>
> I would like to have two different events for dock and undock.
>
> This way the userspace listener don't need to check the status file
> in sysfs to know if there was a dock or undock after getting the
> event.
>
> Anyway the status file is still usefull for programs don't react on
> the events, but like to know if the laptop is docked before starting
> for example.

FWIW, Kay and Neil recently went back and forth regarding what sorts of 
events to generate for MD online/offline events.  In concept md 
online/offline and dock/undock seem similar enough that the 'change' 
events Kay requested for md probably make sense in the dock/undock 
context as well, but I've Cc'd him just in case.

Jesse
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