sys/dev/isa/spkrio.h - view

Return to spkrio.h CVS log

Up to [local] / sys / dev / isa

File: [local] / sys / dev / isa / spkrio.h (download)

Revision 1.1, Tue Mar 4 16:11:27 2008 UTC (16 years, 1 month ago) by nbrk
Branch point for: MAIN

Initial revision

/*	$OpenBSD: spkrio.h,v 1.1 1999/01/02 00:02:43 niklas Exp $	*/
/*	$NetBSD: spkrio.h,v 1.1 1998/04/15 20:26:19 drochner Exp $	*/

/*
 * spkr.h -- interface definitions for speaker ioctl()
 */

#ifndef _DEV_ISA_SPKR_H_
#define _DEV_ISA_SPKR_H_

#define SPKRTONE        _IOW('S', 1, tone_t)    /* emit tone */
#define SPKRTUNE        _IO('S', 2)             /* emit tone sequence */

typedef struct {
	int	frequency;	/* in hertz */
	int	duration;	/* in 1/100ths of a second */
} tone_t;

#endif /* _DEV_ISA_SPKR_H_ */