1 files changed, 19 insertions, 0 deletions
diff --git a/sys/dev/isa/spkrio.h b/sys/dev/isa/spkrio.h
new file mode 100644
index 00000000000..a852cf0782f
--- /dev/null
+++ b/sys/dev/isa/spkrio.h
@@ -0,0 +1,19 @@
+/*	$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_ */