comedi_get_buffer_contents - streaming buffer status
#include <comedilib.h>
int comedi_get_buffer_contents (comedi_t * device, unsigned int
subdevice);
The function comedi_get_buffer_contents() is used on a subdevice that
has a Comedi command in progress. The number of bytes that are
available in the streaming buffer is returned. If there is an error,
-1 is returned.
28 October 2007