1993-11-09 02:31:53 +00:00
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/*
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* speaker.h -- interface definitions for speaker ioctl()
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*
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* v1.4 by Eric S. Raymond (esr@snark.thyrsus.com) Aug 1993
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* modified for FreeBSD by Andrew A. Chernov <ache@astral.msk.su>
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1994-08-02 07:55:43 +00:00
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*
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1999-08-28 01:08:13 +00:00
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* $FreeBSD$
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1993-11-09 02:31:53 +00:00
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*/
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2005-11-11 09:57:32 +00:00
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#ifndef _DEV_SPEAKER_SPEAKER_H_
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#define _DEV_SPEAKER_SPEAKER_H_
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1993-11-09 02:31:53 +00:00
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1996-09-21 14:59:43 +00:00
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#include <sys/ioccom.h>
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1993-11-09 02:31:53 +00:00
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#define SPKRTONE _IOW('S', 1, tone_t) /* emit tone */
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#define SPKRTUNE _IO('S', 2) /* emit tone sequence*/
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typedef struct
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{
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int frequency; /* in hertz */
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int duration; /* in 1/100ths of a second */
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2002-10-23 10:14:30 +00:00
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} tone_t;
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1993-11-09 02:31:53 +00:00
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/*
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* Strings written to the speaker device are interpreted as tunes and played;
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* see the spkr(4) man page for details.
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*/
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2005-11-11 09:57:32 +00:00
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#endif /* !_DEV_SPEAKER_SPEAKER_H_ */
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