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
next 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 ` "Where's the Beep?" (PCMCIA/vt_ioctl-s) 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
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