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Date: Sat, 13 May 2000 06:31:10 -0400
From: Tim Vanderhoek <vanderh@ecf.utoronto.ca>
To: Alex Kosorukoff <alex@3form.com>
Cc: freebsd-stable@FreeBSD.org
Subject: Re: Console ioctl in FBSD
Message-ID: <20000513063110.A8456@mad>
References: <391CD124.C8EAAEBD@3form.com>
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In-Reply-To: <391CD124.C8EAAEBD@3form.com>; from Alex Kosorukoff on Fri, May 12, 2000 at 10:51:00PM -0500
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On Fri, May 12, 2000 at 10:51:00PM -0500, Alex Kosorukoff wrote:
>
> I try to control keyboard LEDs with ioctl calls but they don't work.
> Despite ioctl returns success, LEDs will not turn on/off. The same code

FWIW, it worked for me on ~3.4-R.


> works fine on Linux (with a change of <machine/console.h> to
> <linux/kd.h>. Is it a bug or feature of FBSD? How to make it work?
> 
> The code is following:
> 
> #include <stdio.h>
> #include <stdlib.h>
> #include <fcntl.h>
> #include <sys/ioctl.h>
> #include <machine/console.h>
> 
> main(int argc, char *argv[]) {
>   char leds;
> 
>   if ( ioctl( 0, KDGETLED, &leds ) ) {
>       fprintf(stderr,"Can't get leds\n");
>       exit(1);
>   }
>   if ( ioctl( 0, KDSETLED, leds | LED_CAP ) ) {
>       fprintf(stderr,"Can't set leds\n");
>       exit(1);
>   }
>   printf("Caps lock should glow\n");
>   getchar();
>   ioctl( 0, KDSETLED, leds );
>   exit(0);
> }
> 
> Sincerely,
> Alex
> 
> 
> 
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