linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "B. D. Elliott" <bde@nwlink.com>
To: linux-kernel@vger.kernel.org
Subject: "Where's the Beep?" (PCMCIA/vt_ioctl-s)
Date: Tue, 15 Jul 2003 00:48:26 -0700	[thread overview]
Message-ID: <20030715074826.EF8F46DC14@smtp3.pacifier.net> (raw)

On my old DELL LM laptop the -2.5 series no longer issues any beeps when
a card is inserted.  The problem is in the kernel, as the test program
below (extracted from cardmgr) beeps on -2.4, but not on -2.5.

===========================================================
#include <sys/types.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/ioctl.h>

#define BEEP_TIME 150
#define BEEP_OK   1000
#define BEEP_WARN 2000
#define BEEP_ERR  4000

#include <sys/kd.h>

static void beep(unsigned int, unsigned int);

int
main(int argc, char **argv)
{
	beep(500, 1000);
	beep(500, 2000);
	beep(500, 4000);
	return 0;
}

static
void beep(unsigned int ms, unsigned int freq)
{
    int fd, arg;

    fd = open("/dev/tty0", O_RDWR);
    if (fd < 0)
	return;
    arg = (ms << 16) | freq;
    ioctl(fd, KDMKTONE, arg);
    close(fd);
    usleep(ms*1000);
}
===========================================================

-- 
B. D. Elliott   bde@nwlink.com

             reply	other threads:[~2003-07-15  7:33 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-15  7:48 B. D. Elliott [this message]
2003-07-15  7:53 ` Neil Brown
2003-07-15 14:29   ` Valdis.Kletnieks
2003-07-15 19:03   ` Valdis.Kletnieks
     [not found] <fa.hjqfgl8.17m6f00@ifi.uio.no>
     [not found] ` <fa.h26ngau.73iiag@ifi.uio.no>
2003-07-15 10:22   ` junkio
2003-07-15 16:50     ` James Simmons
2003-07-17 21:09       ` Riley Williams
2003-07-20 23:48         ` Neil Brown

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20030715074826.EF8F46DC14@smtp3.pacifier.net \
    --to=bde@nwlink.com \
    --cc=linux-kernel@vger.kernel.org \
    --subject='Re: "Where'\''s the Beep?" (PCMCIA/vt_ioctl-s)' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).