Date: Thu, 11 Jun 2015 10:08:09 +0200
From: Samuel Thibault <sthibault@debian.org>
To: Anton Zinoviev <anton@lml.bas.bg>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>, Pavel Machek <pavel@ucw.cz>,
        Pali =?iso-8859-1?Q?Roh=E1r?= <pali.rohar@gmail.com>,
        linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
        rpurdie@rpsys.net, Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        514464@bugs.debian.org
Subject: Re: Bug#514464: caps lock led does not show up
Message-ID: <20150611080809.GD3184@type.bordeaux.inria.fr>
Mail-Followup-To: Samuel Thibault <sthibault@debian.org>,
	Anton Zinoviev <anton@lml.bas.bg>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	Pavel Machek <pavel@ucw.cz>,
	Pali =?iso-8859-1?Q?Roh=E1r?= <pali.rohar@gmail.com>,
	linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
	rpurdie@rpsys.net, Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	514464@bugs.debian.org
References: <1433799790-31873-1-git-send-email-dmitry.torokhov@gmail.com>
 <20090205113908.GA14224@const.inria.fr>
 <20150609141723.GE3045@type>
 <20150609160339.GB26687@logic.fmi.uni-sofia.bg>
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Hello,

Anton Zinoviev, le Tue 09 Jun 2015 19:03:39 +0300, a ?crit :
> On Tue, Jun 09, 2015 at 04:17:23PM +0200, Samuel Thibault wrote:
> > 
> > Dmitry Torokhov, le Mon 08 Jun 2015 14:43:07 -0700, a ?crit :
> > > If user wants all keyboards to light up CapsLock LED when VT state locks
> > > CtrlL modifier they need to write a udev rule or similar to set up
> > > "kbd-ctrlllock" trigger for all appearing "input%::capslock" LED class
> > > devices.
> > 
> > Anton, this is the interface proposed by the input maintainer, Dmitry,
> > to change which modifiers gets to light the keyboard LEDs (the exact
> > names may change, but the principle should be firm).  I know this is
> > inconvenient for console-setup for handling hotplugged keyboards,
> 
> Ok, the inconvenience is not a problem.  The problem is I don't 
> understant the meaning of this. :)
> 
> Is there some documentation or a sample code I can read?

Putting

SUBSYSTEM=="leds", ENV{DEVPATH}=="*/input*::capslock", ATTR{trigger}="kbd-ctrlllock"

in /etc/udev/rules.d/50-leds.rules seems to be doing the work. It'd be
good to include this in the documentation along the patch.

Samuel
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