linux-phytium/drivers/staging/comedi/comedilib.h

/* SPDX-License-Identifier: GPL-2.0+ */
/*
 * comedilib.h
 * Header file for kcomedilib
 *
 * COMEDI - Linux Control and Measurement Device Interface
 * Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org>
 */

#ifndef _LINUX_COMEDILIB_H
#define _LINUX_COMEDILIB_H

struct comedi_device *comedi_open(const char *path);
int comedi_close(struct comedi_device *dev);
int comedi_dio_get_config(struct comedi_device *dev, unsigned int subdev,
			  unsigned int chan, unsigned int *io);
int comedi_dio_config(struct comedi_device *dev, unsigned int subdev,
		      unsigned int chan, unsigned int io);
int comedi_dio_bitfield2(struct comedi_device *dev, unsigned int subdev,
			 unsigned int mask, unsigned int *bits,
			 unsigned int base_channel);
int comedi_find_subdevice_by_type(struct comedi_device *dev, int type,
				  unsigned int subd);
int comedi_get_n_channels(struct comedi_device *dev, unsigned int subdevice);

#endif