1 files changed, 56 insertions, 0 deletions
diff --git a/console-client/bell.h b/console-client/bell.h
new file mode 100644
index 00000000..3ff40bde
--- /dev/null
+++ b/console-client/bell.h
@@ -0,0 +1,56 @@
+/* bell.h - The interface to and for a bell driver.
+   Copyright (C) 2002 Free Software Foundation, Inc.
+   Written by Marcus Brinkmann.
+
+   This file is part of the GNU Hurd.
+
+   The GNU Hurd is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2, or (at
+   your option) any later version.
+
+   The GNU Hurd is distributed in the hope that it will be useful, but
+   WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA. */
+
+#ifndef _BELL_H_
+#define _BELL_H_ 1
+
+#include <errno.h>
+
+
+/* The bell drivers are set up by the driver's initialization routine
+   and added to the console client with driver_add_bell.  All
+   subsequent operations on the display are fully synchronized by the
+   caller.  The driver deinitialization routine should call
+   driver_remove_bell.  */
+
+/* Forward declaration.  */
+struct bell_ops;
+typedef struct bell_ops *bell_ops_t;
+
+/* Add the bell HANDLE with the operations OPS to the console client.
+   As soon as this is called, operations on this bell may be
+   performed, even before the function returns.  */
+error_t driver_add_bell (bell_ops_t ops, void *handle);
+
+/* Remove the bell HANDLE with the operations OPS from the console
+   client.  As soon as this function returns, no operations will be
+   performed on the bell anymore.  */
+error_t driver_remove_bell (bell_ops_t ops, void *handle);
+
+struct bell_ops
+{
+  /* Beep! the bell HANDLE.  */
+  error_t (*beep) (void *handle);
+
+  /* Do not use, do not remove.  */
+  void (*deprecated) (void *handle, int key);
+};
+
+#endif	/* _BELL_H_ */