sysfsgpio: remove ignoring return value build warning
[fw/openocd] / src / jtag / drivers / bitbang.h
1 /***************************************************************************
2  *   Copyright (C) 2005 by Dominic Rath                                    *
3  *   Dominic.Rath@gmx.de                                                   *
4  *                                                                         *
5  *   Copyright (C) 2007,2008 Ã˜yvind Harboe                                 *
6  *   oyvind.harboe@zylin.com                                               *
7  *                                                                         *
8  *   This program is free software; you can redistribute it and/or modify  *
9  *   it under the terms of the GNU General Public License as published by  *
10  *   the Free Software Foundation; either version 2 of the License, or     *
11  *   (at your option) any later version.                                   *
12  *                                                                         *
13  *   This program is distributed in the hope that it will be useful,       *
14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
16  *   GNU General Public License for more details.                          *
17  *                                                                         *
18  *   You should have received a copy of the GNU General Public License     *
19  *   along with this program; if not, write to the                         *
20  *   Free Software Foundation, Inc.,                                       *
21  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
22  ***************************************************************************/
23
24 #ifndef BITBANG_H
25 #define BITBANG_H
26
27 struct bitbang_interface {
28         /* low level callbacks (for bitbang)
29          */
30         int (*read)(void);
31         void (*write)(int tck, int tms, int tdi);
32         void (*reset)(int trst, int srst);
33         void (*blink)(int on);
34 };
35
36 int bitbang_execute_queue(void);
37
38 extern struct bitbang_interface *bitbang_interface;
39
40 #endif /* BITBANG_H */