[unix-history] / sys / sys / spkr.h

/*
 * spkr.h -- interface definitions for speaker ioctl()
 *
 * v1.1 by Eric S. Raymond (esr@snark.thyrsus.com) Feb 1990
 *      modified for 386bsd by Andrew A. Chernov <ache@astral.msk.su>
 *      386bsd only clean version, all SYSV stuff removed
 *
 *	$Id$
 */

#ifndef _SPKR_H_
#define _SPKR_H_

#ifndef KERNEL
#include <sys/ioctl.h>
#else
#include "ioctl.h"
#endif

#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 /* _SPKR_H_ */
Commit	Line	Data
15637ed4 RG	1	/*
	2	* spkr.h -- interface definitions for speaker ioctl()
	3	*
	4	* v1.1 by Eric S. Raymond (esr@snark.thyrsus.com) Feb 1990
	5	* modified for 386bsd by Andrew A. Chernov <ache@astral.msk.su>
	6	* 386bsd only clean version, all SYSV stuff removed
78ed81a3	7	*
78ed81a3	8	* $Id$
15637ed4 RG	9	*/
	10
	11	#ifndef _SPKR_H_
	12	#define _SPKR_H_
	13
	14	#ifndef KERNEL
	15	#include <sys/ioctl.h>
	16	#else
	17	#include "ioctl.h"
	18	#endif
	19
	20	#define SPKRTONE _IOW('S', 1, tone_t) /* emit tone */
	21	#define SPKRTUNE _IO('S', 2) /* emit tone sequence*/
	22
	23	typedef struct
	24	{
	25	int frequency; /* in hertz */
	26	int duration; /* in 1/100ths of a second */
	27	}
	28	tone_t;
	29
	30	#endif /* _SPKR_H_ */