Name
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_mark_buffer_read() is used on a subdevice
that has a Comedi command in progress. This function returns
the offset 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.