path: root/drivers/comedi/comedi.h

/* SPDX-License-Identifier: LGPL-2.0+ */
/*
 * comedi.h
 * header file for COMEDI user API
 *
 * COMEDI - Linux Control and Measurement Device Interface
 * Copyright (C) 1998-2001 David A. Schleef <ds@schleef.org>
 */

#ifndef _COMEDI_H
#define _COMEDI_H

#define COMEDI_MAJORVERSION	0
#define COMEDI_MINORVERSION	7
#define COMEDI_MICROVERSION	76
#define VERSION	"0.7.76"

/* comedi's major device number */
#define COMEDI_MAJOR 98

/*
 * maximum number of minor devices.  This can be increased, although
 * kernel structures are currently statically allocated, thus you
 * don't want this to be much more than you actually use.
 */
#define COMEDI_NDEVICES 16

/* number of config options in the config structure */
#define COMEDI_NDEVCONFOPTS 32

/*
 * NOTE: 'comedi_config --init-data' is deprecated
 *
 * The following indexes in the config options were used by
 * comedi_config to pass firmware blobs from user space to the
 * comedi drivers. The request_firmware() hotplug interface is
 * now used by all comedi drivers instead.
 */

/* length of nth chunk of firmware data -*/
#define COMEDI_DEVCONF_AUX_DATA3_LENGTH		25
#define COMEDI_DEVCONF_AUX_DATA2_LENGTH		26
#define COMEDI_DEVCONF_AUX_DATA1_LENGTH		27
#define COMEDI_DEVCONF_AUX_DATA0_LENGTH		28
/* most significant 32 bits of pointer address (if needed) */
#define COMEDI_DEVCONF_AUX_DATA_HI		29
/* least significant 32 bits of pointer address */
#define COMEDI_DEVCONF_AUX_DATA_LO		30
#define COMEDI_DEVCONF_AUX_DATA_LENGTH		31	/* total data length */

/* max length of device and driver names