--- /dev/null
+#include "config.h"
+#include "sstlinux.h"
+
+#ifdef HAVE_LINUX_KD_H
+
+#include <sys/types.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <linux/kd.h>
+
+static int fd = 0;
+#endif
+
+void sound(unsigned int freq)
+{
+#ifdef HAVE_LINUX_KD_H
+ if (fd==0)
+ fd=open("/dev/console", O_RDONLY);
+ if (fd>0)
+ ioctl(fd, KDMKTONE, 1193180/freq + (0xFFFF<<16));
+#endif
+}
+
+void nosound(void)
+{
+#ifdef HAVE_LINUX_KD_H
+ if(fd>0)
+ ioctl(fd, KDMKTONE, 0);
+#endif
+}