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authorAndrey A. Chernov <ache@FreeBSD.org>1993-11-09 02:31:53 +0000
committerAndrey A. Chernov <ache@FreeBSD.org>1993-11-09 02:31:53 +0000
commit46499510140a6adf57a1c7502f41b2bc0054ef0b (patch)
treefecbf757843b59fe4b788de4905fcc130c6b293f /sys/i386/include/speaker.h
parent2fc79c381599dec6481664754fe8a6492b922ce5 (diff)
downloadsrc-46499510140a6adf57a1c7502f41b2bc0054ef0b.tar.gz
src-46499510140a6adf57a1c7502f41b2bc0054ef0b.zip
Name of ioctl's include sys/spkr.h changed to machine/speaker.h
Notes
Notes: svn path=/head/; revision=737
Diffstat (limited to 'sys/i386/include/speaker.h')
-rw-r--r--sys/i386/include/speaker.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/sys/i386/include/speaker.h b/sys/i386/include/speaker.h
new file mode 100644
index 000000000000..af80a282e28b
--- /dev/null
+++ b/sys/i386/include/speaker.h
@@ -0,0 +1,30 @@
+/*
+ * 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>
+ */
+
+#ifndef _SPEAKER_H_
+#define _SPEAKER_H_
+
+#include <sys/ioctl.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 /* _SPEAKER_H_ */
+
+/* speaker.h ends here */