linux-kernel - Re: [PATCH] dell-laptop: Add hwswitch

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Message-ID: <20101007133529.GA21782@srcf.ucam.org>
Date:	Thu, 7 Oct 2010 14:35:29 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Mario Limonciello <superm1@...ntu.com>
Cc:	Keng-Yu Lin <keng-yu.lin@...onical.com>, len.brown@...el.com,
	alan-jenkins@...fmail.co.uk, platform-driver-x86@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dell-laptop: Add hwswitch_only module parameter

On Thu, Oct 07, 2010 at 08:30:57AM -0500, Mario Limonciello wrote:

>    In this specific scenario that Ken Yu submitted this patch for, the
>    firmware will return the same return codes for the SMI's as a functional
>    machine will.  Machines affected by this will fail to recover after rfkill
>    is toggled twice.  The symptom will be that the soft block always appears
>    set to the same setting with continued keypresses.
>    During the prototype phase this option is quite useful to help debug the
>    problem it addresses.

Is the kernel able to unblock it under those circumstances?

-- 
Matthew Garrett | mjg59@...f.ucam.org
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