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Date: Mon, 08 Sep 2008 09:13:52 +0800 From: Zhang Rui <rui.zhang@...el.com> To: Andrey Borzenkov <arvidjaar@...l.ru> Cc: toshiba_acpi@...ebeam.org, linux-acpi@...r.kernel.org, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: ACPI video.c brightness handler conflicts with toshiba_acpi On Sat, 2008-09-06 at 11:08 +0400, Andrey Borzenkov wrote: > I have now two different devices that refer to the same hardware: > > lrwxrwxrwx 1 root root 0 2008-09-06 11:04 acpi_video0 -> ../../devices/virtual/backlight/acpi_video0/ > lrwxrwxrwx 1 root root 0 2008-09-06 11:04 toshiba -> ../../devices/virtual/backlight/toshiba/ > > Unfortunately, due to ACPI implementation the acpi_video0 one is much > inferior (as it provides only effectively two levels instead of 8); > and user level tools are apparently quite confused which one to select. > > Is there any mechanism that would allow tochiba_acpi to claim brightness > for internal LCD screen that video would not attempt to grab it too? > Yes, the patches are in Andi's test tree currently. please run #git-clone git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-2.6 acpi_test #git-branch -r #git-branch --track test origin/test #git-checkout test to get the source code if you want to give it a try. :) thanks, rui -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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