table of contents
COMEDI_DIO_CONFIG(3) | Comedi reference | COMEDI_DIO_CONFIG(3) |
NAME¶
comedi_dio_config - change input/output properties of channelSYNOPSIS¶
#include <comedilib.h>
int
comedi_dio_config(comedi_t * device,
unsigned int subdevice,
unsigned int channel,
unsigned int direction);
DESCRIPTION¶
The function comedi_dio_config configures individual channels in a digital I/O subdevice to be either input or output, depending on the value of direction. Valid directions are COMEDI_INPUT or COMEDI_OUTPUT. Depending on the characteristics of the hardware device, multiple channels might be grouped together in hardware when configuring the input/output direction. In this case, a single call to comedi_dio_config for any channel in the group will affect the entire group.RETURN VALUE¶
If successful, 0 is returned, otherwise -1.AUTHORS¶
David Schleef <ds@schleef.org>Author.
Frank Mori Hess <fmhess@users.sourceforge.net>
Author.
Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be>
Author.
Bernd Porr <tech@linux-usb-daq.co.uk>
Author.
Ian Abbott <abbotti@mev.co.uk>
Author.
Éric Piel <piel@delmic.com>
Author.
COPYRIGHT¶
Copyright © 1998-2003 David Schleef07/14/2014 | Comedi |