Linux-LEDs Archive on lore.kernel.org
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From: Oleh Kravchenko <oleg@kaa.org.ua>
To: Jacek Anaszewski <jacek.anaszewski@gmail.com>,
	devicetree@vger.kernel.org, linux-leds@vger.kernel.org
Subject: Re: [PATCH v4 2/2] leds: add LED driver for EL15203000 board
Date: Wed, 14 Aug 2019 23:16:00 +0300
Message-ID: <e72f3669-1537-54ee-5ddd-ea77f9d13f07@kaa.org.ua> (raw)
In-Reply-To: <b0965dd8-2085-db4d-519d-8ea8a51f57a6@gmail.com>

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Hello Jacek,

14.08.19 22:57, Jacek Anaszewski пише:
>>>>
>>>> All pattern is predefined, you can't change them at all.
>>>> I just tried to describe real things what happened in LED board.
>>>> It's ticks every 800 milliseconds for Pipe LEDs.
>>>
>>> It makes me wonder how you figured out the values? If you have
>>> a documentation for this controller, could you share how the pattern
>>> settings are documented?
>>
>> I saw the code of firmware.
>> Not sure if I can find any documentation for it right now.
> 
> Have you tried to alter the values? Or check what happens when
> the duplication is removed?

What do you mean alter? It doesn't make any sense.
Board is accepts only brightness level from '0' to '5'.
I'm really confused :-)
 
>>>
>>> For the first two we could do without sequence duplication.
>>
>> Ok, I will reduce it.
> 
> Please hold on for a while. I will have some more remarks to the driver,
> just collecting missing info for now to gain more complete view on this
> device.

Here is the full story:

EL15203000 LEDs board (aka RED LEDs board, because it has only RED LEDs).
It's provide access to 3 LEDs:

- First LED (Screen) is a light tube around big 21" screen
  It's have 3 brightness levels:
  * OFF
  * ON
  * Breathing mode (8 seconds full cycle)
- Second LED (Vending area) is highlight coffee cap
  * OFF
  * ON
- Third LED (Pipe) is actually virtual, because consists from 5 LEDs
  * OFF for all 5 LEDs
  * ON for all 5 LEDs
  * Cascade
  * Inverses cascade
  * Bounce
  * Inverses bounce

-- 
Best regards,
Oleh Kravchenko



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  reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-08 20:32 [PATCH v4 1/2] dt-bindings: Add docs for EL15203000 Oleh Kravchenko
2019-08-08 20:32 ` [PATCH v4 2/2] leds: add LED driver for EL15203000 board Oleh Kravchenko
2019-08-13 20:28   ` Jacek Anaszewski
2019-08-13 20:37     ` Oleh Kravchenko
2019-08-14 18:18       ` Jacek Anaszewski
2019-08-14 19:46         ` Oleh Kravchenko
2019-08-14 19:57           ` Jacek Anaszewski
2019-08-14 20:16             ` Oleh Kravchenko [this message]
2019-08-14 20:53               ` Jacek Anaszewski
2019-08-14 20:58                 ` Oleh Kravchenko
2019-08-17 15:02               ` Pavel Machek
2019-08-20  7:46                 ` Oleh Kravchenko
2019-08-18 13:47   ` Jacek Anaszewski
2019-08-27 20:43     ` Oleh Kravchenko
2019-08-27 20:56       ` Jacek Anaszewski
2019-08-27 21:11         ` Oleh Kravchenko
2019-08-27 21:18           ` Jacek Anaszewski
2019-08-27 21:26             ` Oleh Kravchenko
2019-08-13 20:31 ` [PATCH v4 1/2] dt-bindings: Add docs for EL15203000 Dan Murphy
2019-08-14 19:54   ` Jacek Anaszewski
2019-08-18 13:41 ` Jacek Anaszewski
2019-08-20  7:50   ` Oleh Kravchenko

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