linux-kernel - Re: [PATCH v4 3/5] dell-wmi: enable receiving WMI events on Dell Vostro V131

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Message-ID: <20160229125702.GH21814@pali>
Date:	Mon, 29 Feb 2016 13:57:02 +0100
From:	Pali Rohár <pali.rohar@...il.com>
To:	Michał Kępień <kernel@...pniu.pl>
Cc:	Matthew Garrett <mjg59@...f.ucam.org>,
	Darren Hart <dvhart@...radead.org>,
	Darek Stojaczyk <darek.stojaczyk@...il.com>,
	platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 3/5] dell-wmi: enable receiving WMI events on Dell
 Vostro V131

On Wednesday 24 February 2016 08:20:13 Michał Kępień wrote:
> On some laptop models (e.g. Dell Vostro V131), WMI events are not
> generated until a specific SMBIOS request is issued to register an event
> listener [1].  As there seems to be no ACPI method or SMBIOS request to
> determine without possible side effects whether a given machine needs to
> issue this SMBIOS request in order to receive WMI events, DMI matching
> is used to whitelist the models which need it.
> 
> [1] https://lists.us.dell.com/pipermail/libsmbios-devel/2015-July/000612.html
> 
> Signed-off-by: Michał Kępień <kernel@...pniu.pl>

Reviewed-by: Pali Rohár <pali.rohar@...il.com>

-- 
Pali Rohár
pali.rohar@...il.com