/* $OpenBSD: spkr.h,v 1.2 2000/08/05 22:07:32 niklas Exp $ */ /* $NetBSD: spkr.h,v 1.3 1994/10/27 04:16:27 cgd Exp $ */ /* * spkr.h -- interface definitions for speaker ioctl() */ #ifndef _I386_SPKR_H_ #define _I386_SPKR_H_ #include #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 /* _I386_SPKR_H_ */