Re: [PATCH v3 3/3] ALSA: hda: add support for Huawei WMI micmute LED

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Hi!

> > You have general-purpose LED, yet you are treating it as "something
> > special". That means ugly code (quoted above) and lack of flexibility.
> > 
> > For example, if my notebook lacks HDD LED, I can use scrollock LED for
> > that instead. Or, in reverse way, maybe "mic mute" LED is not useful
> > for me, and I'd like to use it for notifications instead.
> 
> I'm not against adding the LEDs device implementation for any exotic
> usage.
> 
> But for the audio mute LED features, you'll need really lots of other
> works if it were implemented via leds device.  That's the hardest
> part, and a few lines of hooks solves it easily in the kernel side.
> That's all about it.
> 
> If you are ready for submitting the real solutions in user-space side
> (patching PulseAudio and whatever all existing sound daemons, and
> creating yet another daemon for non-PA systems (another footprint,
> lovely), and so on), we can happily delete such in-kernel hooks :)

I'm not saying we should move it to the userspace.

I'm saying this should be "normal" led. drivers/leds/led-huawei-acpi.c,
or something. Perhaps this acpi stuff is so similar you don't really
need .c code.

And then there should be a "mic muted" trigger. Similar to
drivers/leds/trigger/ledtrig-disk.c.

That should give us the flexibility, and should not be really much
different from current implementation...
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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