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/*
kcomedilib/get.c
a comedlib interface for kernel modules
COMEDI - Linux Control and Measurement Device Interface
Copyright (C) 1997-2000 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.
*/
#define __NO_VERSION__
#include "../comedi.h"
#include "../comedilib.h"
#include "../comedidev.h"
int comedi_find_subdevice_by_type(void *d, int type, unsigned int subd)
{
struct comedi_device *dev = (struct comedi_device *)d;
if (subd > dev->n_subdevices)
return -ENODEV;
for (; subd < dev->n_subdevices; subd++) {
if (dev->subdevices[subd].type == type)
return subd;
}
return -1;
}
EXPORT_SYMBOL(comedi_find_subdevice_by_type);
int comedi_get_n_channels(void *d, unsigned int subdevice)
{
struct comedi_device *dev = (struct comedi_device *)d;
struct comedi_subdevice *s = dev->subdevices + subdevice;
return s->n_chan;
}
EXPORT_SYMBOL(comedi_get_n_channels);
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