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Date: Sat, 15 Mar 2014 20:34:27 +1100 (EST)
From: Bruce Evans <brde@optusnet.com.au>
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To: Hans Petter Selasky <hps@bitfrost.no>
Subject: Re: svn commit: r262972 - head/sys/dev/usb/input
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Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org,
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On Sat, 15 Mar 2014, Hans Petter Selasky wrote:

> On 03/15/14 00:26, Bruce Evans wrote:
>> LED toggling has to work in critical sections too.  Then the LED code
>> itself is not being reentered (unless parts of it are locked by
>> critical sections), but there are other complications.  Of course,
>> the LED code must not use any interrupts or do any context switches
>> in debugger mode.
>
> CAPS lock works, only the LED is not lighted up.

Yes, that's the expected brokenness.  If keyboard input works at all,
it is not likely to be a fundamental problem.  However, the working
parts probably need races to work.

I really miss the LEDs on a keyboard without them.  Under WinXP, there
is a utility to display the caps lock state using only 10MB of memory.
Under FreeBSD, I don't have such bloat and have to fly blind.

Bruce