Lines Matching full:readback

123  * comedi_alloc_subdev_readback() - Allocate memory for the subdevice readback
132  * On success, @s->readback points to the first element of the array, which
145 	s->readback = kcalloc(s->n_chan, sizeof(*s->readback), GFP_KERNEL);  in comedi_alloc_subdev_readback()
146 	if (!s->readback)  in comedi_alloc_subdev_readback()
173 			kfree(s->readback);  in comedi_device_detach_cleanup()
237  * comedi_readback_insn_read() - A generic (*insn_read) for subdevice readback.
241  * @data: Pointer to return the readback data.
243  * Handles the %INSN_READ instruction for subdevices that use the readback
249  * same element of the readback array will be read multiple times.
251  * Returns @insn->n on success, or -EINVAL if @s->readback is NULL.
261 	if (!s->readback)  in comedi_readback_insn_read()
265 		data[i] = s->readback[chan];  in comedi_readback_insn_read()