table of contents
COMEDI_GET_BUFFER_OF(3) | Comedi reference | COMEDI_GET_BUFFER_OF(3) |
NAME¶
comedi_get_buffer_offset - streaming buffer statusSYNOPSIS¶
#include <comedilib.h>
int
comedi_get_buffer_offset(comedi_t * device,
unsigned int subdevice);
DESCRIPTION¶
The function comedi_get_buffer_offset is used on a subdevice that has a Comedi command in progress. This function returns the offset in bytes of the read pointer in the streaming buffer. This offset is only useful for memory mapped buffers. If there is an error, -1 is returned.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 |