3 implements comedi_dio_*() functions
5 COMEDI - Linux Control and Measurement Device Interface
6 Copyright (C) 2000 David A. Schleef <ds@schleef.org>
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.
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.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 #include "../comedi.h"
25 #include "../comedilib.h"
27 #include <linux/string.h>
29 int comedi_dio_config(comedi_t * dev, unsigned int subdev, unsigned int chan,
34 memset(&insn, 0, sizeof(insn));
35 insn.insn = INSN_CONFIG;
39 insn.chanspec = CR_PACK(chan, 0, 0);
41 return comedi_do_insn(dev, &insn);
44 int comedi_dio_read(comedi_t * dev, unsigned int subdev, unsigned int chan,
49 memset(&insn, 0, sizeof(insn));
50 insn.insn = INSN_READ;
54 insn.chanspec = CR_PACK(chan, 0, 0);
56 return comedi_do_insn(dev, &insn);
59 int comedi_dio_write(comedi_t * dev, unsigned int subdev, unsigned int chan,
64 memset(&insn, 0, sizeof(insn));
65 insn.insn = INSN_WRITE;
69 insn.chanspec = CR_PACK(chan, 0, 0);
71 return comedi_do_insn(dev, &insn);
74 int comedi_dio_bitfield(comedi_t * dev, unsigned int subdev, unsigned int mask,
81 memset(&insn, 0, sizeof(insn));
82 insn.insn = INSN_BITS;
90 ret = comedi_do_insn(dev, &insn);