From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrey Borzenkov Subject: Re: [PATCH] toshiba_acpi: fingers off backlight if video.ko is serving this functionality Date: Sat, 15 Nov 2008 20:05:04 +0300 Message-ID: <200811152005.05031.arvidjaar@mail.ru> References: <200811081637.45099.arvidjaar@mail.ru> <200811151930.58898.arvidjaar@mail.ru> <20081115165415.GA9117@srcf.ucam.org> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart1534872.EOPz5dCv4L"; protocol="application/pgp-signature"; micalg=pgp-sha1 Content-Transfer-Encoding: 7bit Return-path: Received: from mx6.mail.ru ([194.67.23.26]:26775 "EHLO mx6.mail.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751424AbYKORFK (ORCPT ); Sat, 15 Nov 2008 12:05:10 -0500 In-Reply-To: <20081115165415.GA9117@srcf.ucam.org> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Matthew Garrett Cc: Thomas Renninger , Len Brown , linux-acpi@vger.kernel.org --nextPart1534872.EOPz5dCv4L Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline On Saturday 15 November 2008, Matthew Garrett wrote: > On Sat, Nov 15, 2008 at 07:30:57PM +0300, Andrey Borzenkov wrote: > > On Thursday 13 November 2008, Matthew Garrett wrote: > > > On Thu, Nov 13, 2008 at 07:58:09AM +0300, Andrey Borzenkov wrote: > > >=20 > > > > - exposing two knobs for the *same* thing confuses user level tools= ; you never > > > > know which one is used and they compete behind your back > > >=20 > > > How do they compete? > >=20 > > In my case user level program (kpowersave) decided to use video.ko for > > brightness control (or, may be, it used them both). Which gave me 2 lev= els > > instead of 8. And there is no way to control it, at least known to me. >=20 > Right. But that doesn't mean they're competing, as such. If you set the=20 > brightness via toshiba_acpi I probably have problems with expressing myself as non-native English speaker. I am not interested in setting values via echoing into sysfs file. I am interested in my desktop brightness control working out of the box. And desktop driver control has no way to select, which of two sysfs files to use. Nor do I understand why I have to create this problem of selecting right driver when I already have possibility to avoid it. If you think exposing both knobs is non-issue, why are all those patches for other vendor drivers included in the kernel in the first place? > to a value that isn't supported via the =20 > acpi driver, what value does the acpi backlight claim to be at? >=20 --nextPart1534872.EOPz5dCv4L Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) iEYEABECAAYFAkkfAUAACgkQR6LMutpd94xMjgCfaLViMDNVv8MEb50q3y/cBU6X ZaAAnRwEJ8W9vCvd6szOykpVpl3O6A1V =MhrB -----END PGP SIGNATURE----- --nextPart1534872.EOPz5dCv4L--