[lkml]   [2016]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v5 1/4] leds: core: add generic support for RGB Color LED's

> >>How about implementing patterns as a specific typer of triggers?
> >>Let's say we have ledtrig-rgb-pattern:
> >
> >Well, we'd need ledtrig-rgb-pattern-1, ledtrig-rgb-pattern-2, ... , as we
> >can have more than one rgb led. But yes.
> Triggers can have many listeners, i.e. led_trigger_event() sets
> brightness on all LED class devices registered on given trigger.
> We could have led_trigger_rgb_event() that would set brightness
> on all groups-of-three LEDs registered on given rgb-trigger.

I do not understand that.

> I agree that ledtrig-rgb-pattern-1, ledtrig-rgb-pattern-2, etc. would
> be also needed to add a capability of setting different colors on
> different LED devices.


> >For patterns, I'd suggest array of (r g b time) values.
> >
> >Pattern engines can do stuff like "slowly turn LED from off to red, then switch color to
> >white, then slowly turn it to yellow, then turn it off at once" with defined speeds
> >for "slowly" and option of either linear on non-linear brightness ramping.
> >
> >The last option might be a bit too much, but I believe we should support the rest.
> Yes, that's an interesting idea. It also turns out that trigger based
> patterns could be also used for defining generic patterns for a group
> of monochrome LEDs.

Yes, controlling monochrome LEDs synchronously is another task for
patterns. Actually, N900 uses that to control 6 keyboard backlight
LEDs synchronously... and yes, it would be somehow nice to preserve
this functionality.

Best regards,
(cesky, pictures)

 \ /
  Last update: 2016-04-15 14:01    [W:0.099 / U:0.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site