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
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