/*    kcomedilib/dio.c    implements comedi_dio_*() functions    COMEDI - Linux Control and Measurement Device Interface    Copyright (C) 2000 David A. Schleef <ds@schleef.org>    This program 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 of the License, or    (at your option) any later version.    This program 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., 675 Mass Ave, Cambridge, MA 02139, USA.*/#include <linux/comedi.h>#include <linux/comedilib.h>#include <linux/string.h>int comedi_dio_config(comedi_t * dev,unsigned int subdev,unsigned int chan,	unsigned int io){	comedi_insn insn;	memset(&insn,0,sizeof(insn));	insn.insn = INSN_CONFIG;	insn.n = 1;	insn.data = &io;	insn.subdev = subdev;	insn.chanspec = CR_PACK(chan,0,0);	return comedi_do_insn(dev,&insn);}int comedi_dio_read(comedi_t * dev,unsigned int subdev,unsigned int chan,	unsigned int *val){	comedi_insn insn;	memset(&insn,0,sizeof(insn));	insn.insn = INSN_READ;	insn.n = 1;	insn.data = val;	insn.subdev = subdev;	insn.chanspec = CR_PACK(chan,0,0);	return comedi_do_insn(dev,&insn);}int comedi_dio_write(comedi_t * dev,unsigned int subdev,unsigned int chan,	unsigned int val){	comedi_insn insn;	memset(&insn,0,sizeof(insn));	insn.insn = INSN_WRITE;	insn.n = 1;	insn.data = &val;	insn.subdev = subdev;	insn.chanspec = CR_PACK(chan,0,0);	return comedi_do_insn(dev,&insn);}int comedi_dio_bitfield(comedi_t *dev,unsigned int subdev,unsigned int mask,	unsigned int *bits){	comedi_insn insn;	lsampl_t data[2];	int ret;	memset(&insn,0,sizeof(insn));	insn.insn = INSN_BITS;	insn.n = 2;	insn.data = data;	insn.subdev = subdev;	data[0] = mask;	data[1] = *bits;	ret = comedi_do_insn(dev,&insn);	*bits = data[1];	return ret;}