linux-kernel - Re: [PATCH/RFC v10 01/19] leds: Add LED Flash class extension to the LED subsystem

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Message-ID: <CAK5ve-JV2EU+bT3yz4cMFLp0k-+Kk1YTQfEOV8cUCSvLUMuYng@mail.gmail.com>
Date:	Mon, 26 Jan 2015 15:02:02 -0800
From:	Bryan Wu <cooloney@...il.com>
To:	Pavel Machek <pavel@....cz>
Cc:	Jacek Anaszewski <j.anaszewski@...sung.com>,
	Linux LED Subsystem <linux-leds@...r.kernel.org>,
	"linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
	lkml <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	b.zolnierkie@...sung.com, "rpurdie@...ys.net" <rpurdie@...ys.net>,
	Sakari Ailus <sakari.ailus@....fi>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>
Subject: Re: [PATCH/RFC v10 01/19] leds: Add LED Flash class extension to the
 LED subsystem

On Fri, Jan 9, 2015 at 9:37 AM, Pavel Machek <pavel@....cz> wrote:
> On Fri 2015-01-09 16:22:51, Jacek Anaszewski wrote:
>> Some LED devices support two operation modes - torch and flash.
>> This patch provides support for flash LED devices in the LED subsystem
>> by introducing new sysfs attributes and kernel internal interface.
>> The attributes being introduced are: flash_brightness, flash_strobe,
>> flash_timeout, max_flash_timeout, max_flash_brightness, flash_fault,
>> flash_sync_strobe and available_sync_leds. All the flash related
>> features are placed in a separate module.
>>
>> The modifications aim to be compatible with V4L2 framework requirements
>> related to the flash devices management. The design assumes that V4L2
>> sub-device can take of the LED class device control and communicate
>> with it through the kernel internal interface. When V4L2 Flash sub-device
>> file is opened, the LED class device sysfs interface is made
>> unavailable.
>>
>> Signed-off-by: Jacek Anaszewski <j.anaszewski@...sung.com>
>> Acked-by: Kyungmin Park <kyungmin.park@...sung.com>
>> Cc: Bryan Wu <cooloney@...il.com>
>> Cc: Richard Purdie <rpurdie@...ys.net>
>
> Acked-by: Pavel Machek <pavel@....cz>
>

Applied to my tree. Thanks for pushing this.

-Bryan
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