RE: [PATCH] Add the LED burst trigger

[Joe Xue]

Hi all,

I think Pavel's suggestion is a good idea, I'm starting to write another trigger named Morse code trigger.

I prefer to keeping this burst trigger and add another Morse code trigger for different application. But I know the Morse code trigger will be the super set of the burst. Say the patten ... Morse code is same as the 3 times burst blinking.

Anyway, after I finish that trigger, let community to decide which one will be adapted, or both.

Any suggestion about the new Morse trigger, please let me know.

Thank you Pavel.

Joe

----------------------------------------
> From: lgxue@xxxxxxxxxxx
> To: pavel@xxxxxx
> CC: cooloney@xxxxxxxxx; rpurdie@xxxxxxxxx; rob@xxxxxxxxxxx; milo.kim@xxxxxx; linux-leds@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux-doc@xxxxxxxxxxxxxxx
> Subject: RE: [PATCH] Add the LED burst trigger
> Date: Thu, 26 Dec 2013 10:02:38 -0500
>
> Hi Pavel,
>
> Yes, your suggest looks reasonable. Only issue maybe is not easy to called by program. After all, the interface is called by program more ofter then by human being.
>
> I would like to change the way what you suggest, let see if other guys agree with your idea.
>
> Before that, I'll submit another change as per Geert's suggest that change HZ to Hz.
>
> Joe
>
> ----------------------------------------
>> Date: Thu, 26 Dec 2013 15:26:08 +0100
>> From: pavel@xxxxxx
>> To: lgxue@xxxxxxxxxxx
>> CC: cooloney@xxxxxxxxx; rpurdie@xxxxxxxxx; rob@xxxxxxxxxxx; milo.kim@xxxxxx; linux-leds@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; linux-doc@xxxxxxxxxxxxxxx
>> Subject: Re: [PATCH] Add the LED burst trigger
>>
>> Hi!
>>
>>> Yes, Morse code can indicate any means. But when we look at the LEDs, would we like to also have a Morse code book in hand?
>>>
>>> The burst led blink idea is because it is easy to use and easy to describe. Mostly when users on site are describing the LEDs states to the support engineer.
>>>
>>
>> Well.. above 7 or so blinks, people will be unable to count. "one
>> short, one long" will help to extend that.
>>
>> Plus, there may be patterns such as "keep it ON, count number of brief
>> OFFs"...
>>
>> That's why I suggested:
>>
>>>> echo 40> step_length_ms
>>>> echo "- - - "> pattern
>>>>
>>>> do the same trick?
>>>>
>>>> Plus, you could for example do
>>>>
>>>> echo "- --- "> pattern
>>>>
>>>> to do morse code...
>>
>> Interface
>>
>> (Note that your client stripped some spaces out of it).
>>
>> With that, it should be very easy to program all the reasonable
>> blinking patterns for single LED without PWM.
>> Pavel
>> --
>> (english) http://www.livejournal.com/~pavelmachek
>> (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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