linux-kernel - Re: [PATCH v2] leds: fix brightness changing when software blinking is active

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Message-ID: <5555FE9D.20103@list.ru>
Date:	Fri, 15 May 2015 17:11:41 +0300
From:	Stas Sergeev <stsp@...t.ru>
To:	Jacek Anaszewski <j.anaszewski@...sung.com>
CC:	linux-leds@...r.kernel.org,
	Linux kernel <linux-kernel@...r.kernel.org>,
	Bryan Wu <cooloney@...il.com>,
	Richard Purdie <rpurdie@...ys.net>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Stas Sergeev <stsp@...rs.sourceforge.net>
Subject: Re: [PATCH v2] leds: fix brightness changing when software blinking
 is active

15.05.2015 17:09, Jacek Anaszewski пишет:
> On 05/15/2015 10:12 AM, Jacek Anaszewski wrote:
>> Hi Stas,
>>
>> On 05/14/2015 05:24 PM, Stas Sergeev wrote:
>>>
>>> The following sequence:
>>> echo timer >/sys/class/leds/<name>/trigger
>>> echo 1 >/sys/class/leds/<name>/brightness
>>> should change the ON brightness for blinking.
>>> The function led_set_brightness() was mistakenly initiating the
>>> delayed blink stop procedure, which resulted in no blinking with
>>> the timer trigger still active.
>>>
>>> This patch fixes the problem by changing led_set_brightness()
>>> to not initiate the delayed blink stop when brightness is not 0.
> 
> This commit message is not valid for this version of the patch.
Why do you think so?
---
-		schedule_work(&led_cdev->set_brightness_work);
+		if (brightness == LED_OFF)
+			schedule_work(&led_cdev->set_brightness_work);
---

LED_OFF is a 0 define.
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