/* 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 /* 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_ */