table of contents
COMEDI_POLL(3) | Comedi reference | COMEDI_POLL(3) |
NAME¶
comedi_poll - force updating of streaming bufferSYNOPSIS¶
#include <comedilib.h>
int
comedi_poll(comedi_t * device,
unsigned int subdevice);
DESCRIPTION¶
The function comedi_poll is used on a subdevice that has a Comedi command in progress in order to update the streaming buffer. If supported by the driver, all available samples are copied to the streaming buffer. These samples may be pending in DMA buffers or device FIFOs. If successful, the number of additional bytes available is returned. 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 |