Annotation of sys/dev/isa/spkrio.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: spkrio.h,v 1.1 1999/01/02 00:02:43 niklas Exp $ */
2: /* $NetBSD: spkrio.h,v 1.1 1998/04/15 20:26:19 drochner Exp $ */
3:
4: /*
5: * spkr.h -- interface definitions for speaker ioctl()
6: */
7:
8: #ifndef _DEV_ISA_SPKR_H_
9: #define _DEV_ISA_SPKR_H_
10:
11: #define SPKRTONE _IOW('S', 1, tone_t) /* emit tone */
12: #define SPKRTUNE _IO('S', 2) /* emit tone sequence */
13:
14: typedef struct {
15: int frequency; /* in hertz */
16: int duration; /* in 1/100ths of a second */
17: } tone_t;
18:
19: #endif /* _DEV_ISA_SPKR_H_ */
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