linux-kernel - Re: [PATCH RESEND] ACPI: Blacklist Win8 OSI for some HP laptop 2013 models

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Date:	Tue, 14 Jan 2014 17:43:56 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <lenb@...nel.org>, Oliver Neukum <oneukum@...e.de>,
	linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND] ACPI: Blacklist Win8 OSI for some HP laptop 2013 models

At Tue, 14 Jan 2014 16:36:00 +0000,
Matthew Garrett wrote:
> 
> On Tue, Jan 14, 2014 at 05:33:50PM +0100, Takashi Iwai wrote:
> 
> > For the rfkill part, it depends on the user-space.  Without the patch,
> > it sends a scan code, and OS is supposed to do rfkill via each
> > driver.  The proper key mapping would be needed.  Not sure about the
> > LED state on the WiFi button, though, whether it's properly controlled
> > by WiFi and/or BT driver.  With the patch, all rfkill and LED are
> > handled by BIOS, so it works as is.
> 
> Ok, so userspace needs to work - there's plenty of hardware that only 
> sends a scancode already. Let's just add the keycode and then remove 
> this once the backlight stuff is fixed.

Yes, sounds feasible.


Takashi
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