comedi_get_buffer_offset man page

comedi_get_buffer_offset — streaming buffer status

Synopsis

#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.

Info

28 October 2007