Comedi Documentation . Prev . Next . comedi_get_buffer_offset -- streaming buffer status . ... int comedi_get_buffer_offset (comedi_t * device, unsigned int subdevice); . 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. ... comedi_mark_buffer_read . ... comedi_get_timer ...