138 		to_wait = min_t(size_t, n / datum_size, rb->watermark);  in iio_buffer_read()
252 		if (iio_buffer_ready(indio_dev, rb, rb->watermark, 0))  in iio_buffer_poll()
337 	if (!buffer->watermark)  in iio_buffer_init()
338 		buffer->watermark = 1;  in iio_buffer_init()
686 	if (buffer->length && buffer->length < buffer->watermark)  in length_store()
687 		buffer->watermark = buffer->length;  in length_store()
834 	unsigned int watermark;  member
861 	config->watermark = ~0;  in iio_verify_update()
877 		config->watermark = min(config->watermark, buffer->watermark);  in iio_verify_update()
882 		config->watermark = min(config->watermark,  in iio_verify_update()
883 					insert_buffer->watermark);  in iio_verify_update()
1116 			config->watermark);  in iio_enable_buffers()
1352 	return sysfs_emit(buf, "%u\n", buffer->watermark);  in watermark_show()
1383 	buffer->watermark = val;  in watermark_store()
1417 static DEVICE_ATTR_RW(watermark);
1418 static struct device_attribute dev_attr_watermark_ro = __ATTR_RO(watermark);
1424  * the code that handles the length/length_ro & watermark/watermark_ro
1869 	 * We can't just test for watermark to decide if we wake the poll queue  in iio_push_to_buffer()
1870 	 * because read may request less samples than the watermark.  in iio_push_to_buffer()