linux-kernel - Re: [RESEND #2] [PATCH v2] LEDS: Add output invertion option to backlight trigger

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Date:	Thu, 06 Jan 2011 13:19:12 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	Janusz Krzysztofik <jkrzyszt@....icnet.pl>,
	Richard Purdie <rpurdie@...ys.net>,
	"linux-fbdev@...r.kernel.org" <linux-fbdev@...r.kernel.org>,
	linux-kernel@...r.kernel.org,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	Paul Mundt <lethal@...ux-sh.org>
Subject: Re: [RESEND #2] [PATCH v2] LEDS: Add output invertion option to backlight
 trigger

On 01/06/11 13:16, Andrew Morton wrote:
> On Thu, 6 Jan 2011 13:08:56 -0800
> Randy Dunlap <randy.dunlap@...cle.com> wrote:
> 
>> On Thu, 6 Jan 2011 13:04:40 -0800 Andrew Morton wrote:
>>
>>> On Thu, 9 Dec 2010 14:41:50 +0100
>>> Janusz Krzysztofik <jkrzyszt@....icnet.pl> wrote:
>>>
>>>> +static DEVICE_ATTR(invert, 0644, bl_trig_invert_show, bl_trig_invert_store);
>>>
>>> This new sysfs file should be documented.  Where would be an
>>> appropriate place for that?  Documentation/leds-class.txt doesn't
>>> mention a sysfs API at all.  
>>> --
>>
>> in Documentation/ABI/, where all sysfs interface info lives.
>>
> 
> Spose so.  Documentation/ABI/stable/sysfs-class-backlight does have
> some stuff in it.
> 
> Personally I tend to regard Documentation/ABI/ as fairly useless
> incomprehensible stuff, maintained to keep Greg happy ;) It'd be better
> to have a nice little well-maintained document for a subsystem such as
> this which actually explains its operation in a useful-to-humans way. 
> Rather than just mechanically filling out forms.
> 
> But a Documentation/ABI update is a heck of a lot better than nothing.

Yes, I was giving you the "where it currently lives", not "what is best."
I agree with you.

-- 
~Randy
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