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From: jpn@teddy.UUCP
Newsgroups: comp.unix.questions
Subject: Re: Let the Sun-3 beep! How??? - (nf)
Message-ID: <3977@teddy.UUCP>
Date: Thu, 23-Apr-87 13:30:21 EST
Article-I.D.: teddy.3977
Posted: Thu Apr 23 13:30:21 1987
Date-Received: Sat, 25-Apr-87 05:41:45 EST
References: <8200006@iaoobelix.UUCP>
Reply-To: jpn@teddy.UUCP (John P. Nelson)
Organization: GenRad, Inc., Concord, Mass.
Lines: 57

>Apparently, it is impossible to let the Sun console beep without using
>`window_bell'. Does anybody out there know of a possiblity other than this
>function (e.g. by accessing the keyboard bell) to generate a beep?

For your beeping pleasure:  beep.c
------------------
#include <ctype.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sundev/kbd.h>
#include <sundev/kbio.h>

#define BELL		0x07	/* Control-G */
#define NULL		0

main(argc, argv)
int argc;
char **argv;
    {
    int	bell;
    int cmd;
    int iterations = 1;
    static struct  timeval  ring_time  =  {0, 100000};
    static struct  timeval  pause_time  =  {0, 50000};

    if ( argc > 1 && isdigit(argv[1][0]))
	{
	iterations = atoi(argv[1]);
	}

    if ( (bell = open("/dev/kbd",2)) < 0 )
	{
	/* no /dev/kbd.  Fail gracefully */
	char out;

	out = BELL;
	write(1, &out, 1);
	exit(0);
	}

    do
	{
	cmd = KBD_CMD_BELL;
	ioctl(bell, KIOCCMD, &cmd);

	select(0, NULL, NULL, NULL, &ring_time);

	cmd = KBD_CMD_NOBELL;
	ioctl(bell, KIOCCMD, &cmd);

	if (iterations > 1)
	    select(0, NULL, NULL, NULL, &pause_time);

	} while (--iterations > 0);

    exit(0);
    }