unsigned int comedi_write_array_to_buffer(struct comedi_subdevice *s,
const void *data,
unsigned int num_bytes);
-unsigned int comedi_read_array_from_buffer(struct comedi_subdevice *s,
- void *data, unsigned int num_bytes);
unsigned int comedi_buf_read_samples(struct comedi_subdevice *s,
void *data, unsigned int nsamples);