Date: Fri, 12 Feb 2010 15:41:27 -0500 From: Jung-uk Kim <jkim@FreeBSD.org> To: freebsd-acpi@FreeBSD.org Cc: Daniel Walter <d.walter@0x90.at> Subject: Re: Call for testers acpi_dell Message-ID: <201002121541.29429.jkim@FreeBSD.org> In-Reply-To: <alpine.BSF.2.00.1002122110190.1413@mini-beast.lan> References: <alpine.BSF.2.00.1002121840460.1675@mini-beast> <201002121448.20071.jkim@FreeBSD.org> <alpine.BSF.2.00.1002122110190.1413@mini-beast.lan>
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On Friday 12 February 2010 03:12 pm, Daniel Walter wrote: > On Fri, 12 Feb 2010, Jung-uk Kim wrote: > > On Friday 12 February 2010 02:37 pm, Daniel Walter wrote: > >> On Fri, 12 Feb 2010, Jung-uk Kim wrote: > >>> On Friday 12 February 2010 01:33 pm, Daniel Walter wrote: > >>>> On Fri, 12 Feb 2010, Jung-uk Kim wrote: > >>>>> On Friday 12 February 2010 12:48 pm, Daniel Walter wrote: > >>>>>> Hi all, > >>>>>> > >>>>>> I've written a small kernel driver to support Dell Mini 1011 > >>>>>> (aka Dell Mini 10v) Brightness Controll Buttons. Since I do > >>>>>> not have any other Dell Notebooks, I'd like you to test this > >>>>>> module on other Dell Notebooks as well. > >>>>>> > >>>>>> This driver is in an early stage, but future releases will > >>>>>> also support the rfkill switch and CRT switch. > >>>>>> > >>>>>> Currently following features are implemented: > >>>>>> * Increase / Decrease Brightness > >>>>>> * Change brightness if AC is connected / disconnected > >>>>>> > >>>>>> TODO: > >>>>>> * Add CRT Support > >>>>>> * Add Sysctl to define brightness levels for eco and ac > >>>>>> powerprofile * Add Support for RF-Kill Switch > >>>>>> > >>>>>> Any suggestions are welcome > >>>>> > >>>>> I just quickly glanced at it but I failed see anything quite > >>>>> specific to Dell laptops except for "TODO: Add support for > >>>>> RF-Kill Switch". acpi_video(4) should be able to do what you > >>>>> want. Am I missing something here? > >>>>> > >>>>> Jung-uk Kim > >>>> > >>>> hi, > >>>> > >>>> Yes it is possible to control the brightness using > >>>> acpi_video(4) via sysctl but there is no support for the > >>>> FN-Buttons. This module adds the support for those buttons. > >>> > >>> I see. However, my point is the probe function does not seem > >>> specific to Dell laptops. In fact, you are just checking _BCL > >>> transition, i.e., effectively it just makes a generic > >>> acpi_video notify handler for brightness change. > >>> > >>> Jung-uk Kim > >> > >> Oh, I've completly overlooked this one. Sorry for that, I should > >> replace the probing with a Dell specific probing instead. Do you > >> have any suggestions to this one ? > > > > It totally depends on DSDT of your laptop model and you will have > > to maintain the list of these ACPI handles, unfortunately. > > Please see acpi_asus.c for example. > > > > If you are interested in generic acpi_video(4) enhancement, you > > just need to extend acpi_video.c to get these notifications, > > i.e., 0x86 and 0x87. FYI, acpi_video can only handle 0x80 and > > 0x81 events ATM. Please read ACPI specification Appendix B. Video > > Extensions, especially B.6 and B.7 are what you are looking for. > > > > Jung-uk Kim > > Hi I'll take a look at my DSDT again ... > > I've also will take a look at Appendix B of the current ACPI spec > to see if 0x86 and 0x87 are OEM or part of the standard. If they > are not completly out of spec I'll patch acpi_video(4) and send it > again to the list. 0x86/0x87 is part of the spec. and it should be handled by acpi_video IMHO. Jung-uk Kim
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