comedi_get_buffer_write_count man page

comedi_get_buffer_write_count — streaming buffer write count

Synopsis

#include <comedilib.h>

int comedi_get_buffer_write_count(comedi_t * device, unsigned int subdevice, unsigned int * write_count);

Description

The function comedi_get_buffer_write_count is used on a subdevice that has a Comedi command in progress to get the number of bytes that have been written to the buffer, modulo UINT_MAX + 1. The value is stored in *write_count.

Return Value

On success, 0 is returned. On failure, -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.

Info

05/11/2017 Comedi reference