freebsd-dev/sys/dev/speaker/speaker.h

/*
 * speaker.h -- interface definitions for speaker ioctl()
 *
 * v1.4 by Eric S. Raymond (esr@snark.thyrsus.com) Aug 1993
 *      modified for FreeBSD by Andrew A. Chernov <ache@astral.msk.su>
 *
 * $Id$
 */

#ifndef	_MACHINE_SPEAKER_H_
#define	_MACHINE_SPEAKER_H_

#include <sys/ioccom.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;

/*
 * Strings written to the speaker device are interpreted as tunes and played;
 * see the spkr(4) man page for details.
 */

#endif /* !_MACHINE_SPEAKER_H_ */
Name of ioctl's include sys/spkr.h changed to machine/speaker.h 1993-11-09 02:31:53 +00:00			`/*`
			`* speaker.h -- interface definitions for speaker ioctl()`
			`*`
			`* v1.4 by Eric S. Raymond (esr@snark.thyrsus.com) Aug 1993`
			`* modified for FreeBSD by Andrew A. Chernov <ache@astral.msk.su>`
Added $Id$ 1994-08-02 07:55:43 +00:00			`*`
Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not ready for it yet. 1997-02-22 09:48:43 +00:00			`* $Id$`
Name of ioctl's include sys/spkr.h changed to machine/speaker.h 1993-11-09 02:31:53 +00:00			`*/`

Cleaned up all headers that include <sys/ioctl.h> or <sys/ioccom.h>: - don't include <sys/ioctl.h> in any header. Include <sys/ioccom.h> instead. This was already done in 4.4Lite for the most important ioctl headers. Header spam currently increases kernel build times by 10-20%. There are more than 30000 #includes (not counting duplicates) for compiling LINT. - include <sys/types.h> if and only it is necessary to make the header almost self-sufficient (some ioctl headers still need structs from elsewhere). - uniformized idempotency ifdefs. Copied the style in the 4.4Lite ioctl headers. 1996-09-21 14:59:43 +00:00			`#ifndef _MACHINE_SPEAKER_H_`
			`#define _MACHINE_SPEAKER_H_`
Name of ioctl's include sys/spkr.h changed to machine/speaker.h 1993-11-09 02:31:53 +00:00
Cleaned up all headers that include <sys/ioctl.h> or <sys/ioccom.h>: - don't include <sys/ioctl.h> in any header. Include <sys/ioccom.h> instead. This was already done in 4.4Lite for the most important ioctl headers. Header spam currently increases kernel build times by 10-20%. There are more than 30000 #includes (not counting duplicates) for compiling LINT. - include <sys/types.h> if and only it is necessary to make the header almost self-sufficient (some ioctl headers still need structs from elsewhere). - uniformized idempotency ifdefs. Copied the style in the 4.4Lite ioctl headers. 1996-09-21 14:59:43 +00:00			`#include <sys/ioccom.h>`
Name of ioctl's include sys/spkr.h changed to machine/speaker.h 1993-11-09 02:31:53 +00:00
			`#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;`

			`/*`
			`* Strings written to the speaker device are interpreted as tunes and played;`
			`* see the spkr(4) man page for details.`
			`*/`

Cleaned up all headers that include <sys/ioctl.h> or <sys/ioccom.h>: - don't include <sys/ioctl.h> in any header. Include <sys/ioccom.h> instead. This was already done in 4.4Lite for the most important ioctl headers. Header spam currently increases kernel build times by 10-20%. There are more than 30000 #includes (not counting duplicates) for compiling LINT. - include <sys/types.h> if and only it is necessary to make the header almost self-sufficient (some ioctl headers still need structs from elsewhere). - uniformized idempotency ifdefs. Copied the style in the 4.4Lite ioctl headers. 1996-09-21 14:59:43 +00:00			`#endif /* !_MACHINE_SPEAKER_H_ */`