1737Sache/*
2737Sache * speaker.h -- interface definitions for speaker ioctl()
3737Sache *
4737Sache * v1.4 by Eric S. Raymond (esr@snark.thyrsus.com) Aug 1993
5737Sache *      modified for FreeBSD by Andrew A. Chernov <ache@astral.msk.su>
61817Sdg *
750477Speter * $FreeBSD$
8737Sache */
9737Sache
10152306Sru#ifndef	_DEV_SPEAKER_SPEAKER_H_
11152306Sru#define	_DEV_SPEAKER_SPEAKER_H_
12737Sache
1318444Sbde#include <sys/ioccom.h>
14737Sache
15737Sache#define SPKRTONE        _IOW('S', 1, tone_t)    /* emit tone */
16737Sache#define SPKRTUNE        _IO('S', 2)             /* emit tone sequence*/
17737Sache
18737Sachetypedef struct
19737Sache{
20737Sache    int	frequency;	/* in hertz */
21737Sache    int duration;	/* in 1/100ths of a second */
22105777Smarkm} tone_t;
23737Sache
24737Sache/*
25737Sache * Strings written to the speaker device are interpreted as tunes and played;
26737Sache * see the spkr(4) man page for details.
27737Sache */
28737Sache
29152306Sru#endif /* !_DEV_SPEAKER_SPEAKER_H_ */
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