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/* $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_ */
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