1 files changed, 8 insertions, 0 deletions

diff --git a/pintos-progos/devices/speaker.h b/pintos-progos/devices/speaker.h
new file mode 100644
index 0000000..98cef7b
--- /dev/null
+++ b/pintos-progos/devices/speaker.h
@@ -0,0 +1,8 @@
+#ifndef DEVICES_SPEAKER_H
+#define DEVICES_SPEAKER_H
+
+void speaker_on (int frequency);
+void speaker_off (void);
+void speaker_beep (void);
+
+#endif /* devices/speaker.h */