From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zhang Rui Subject: Re: ACPI ALS Status ? Date: Mon, 21 May 2012 09:03:46 +0800 Message-ID: <1337562226.1503.12.camel@rui.sh.intel.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mga11.intel.com ([192.55.52.93]:51655 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752848Ab2EUBC2 (ORCPT ); Sun, 20 May 2012 21:02:28 -0400 In-Reply-To: Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Corentin Chary Cc: Len Brown , Pavel Machek , Dmitry Torokhov , linux acpi , Jonathan Cameron , Amit Kucheria , Jean Delvare On =E6=97=A5, 2012-05-20 at 15:09 +0200, Corentin Chary wrote: > On Mon, Mar 5, 2012 at 10:12 AM, Corentin Chary > wrote: > > On Sun, Nov 6, 2011 at 11:16 PM, Len Brown wrote: > >>> I was looking at the DSDT of a new samsung laptop (I can send you= the > >>> output of acpidump if interested), and it export a standard ACPI = ALS > >>> device. So, it's actually great to see vendor using that, but it = seems > >>> that the series adding support for that and sent back in 2009 is = not > >>> available in the kernel. I'd really like to use my the ALS, what'= s the > >>> current status of the driver ? Still blocked because we don't hav= e a > >>> generic sysfs class ? If yes, can't we just use a non-standard > >>> interface ? It would still be better than no driver at all. > >> > >> Yes, I think ACPI ALS support has been waiting for hardware to jus= tify > >> its existence. > >> > >> When it first entered the spec, we were excited to see it was pres= ent > >> in some high-end laptops, but IIR on closer examination the AML tu= rned > >> out to be dummy code. > >> > >> If you can verify that your Samsung really does implement ACPI ALS= , > >> then that is all we need to stumble forward. > >> > >> thanks, > >> -Len Brown, Intel Open Source Technology Center > > > > Hello, > > > > As stated in my previous mails, the implementation on this laptop i= s > > perfectly functional, and since Windows 7 seems to be able to use > > ACPI ALS nativelly [1] I suspect new (high end ?) laptop will all > > support that. > > Is there any plan to revive this driver for 3.4 or 3.5 ? Should > > someone repost the last version of the previous patchset for > > discussion ? > > And no, on this laptop ALS is definitively not a gadget. > > > > Thanks, > > > > - http://download.microsoft.com/download/3/0/2/3027D574-C433-412A-A= 8B6-5E0A75D5B237/ambient-light-sensors.docx >=20 > Adding more people that were interested in the previous discussion. > What was the exact status of the als class ? Rui Zhang are you still > interested in this ? > Thanks, >=20 well, I need some time to get updated about this. Say I'm not sure if we still want to introduce an ALS class or we need to use drivers/staging/iio/ instead, today. BTW, you own this laptop, right? Can you send me the model name of this laptop and its acpidump output? thanks, rui -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html