drivers/tsl4531x: Add SAUL driver.

drivers/include/tsl4531x_saul.h

+/*
+ * Copyright (C) 2018 Freie Universität Berlin
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     drivers_tsl4531x
+ * @{
+ *
+ * @file
+ * @brief       SAUL interface for TSL4531 Luminosity sensor.
+ *
+ * @author      Juan I Carrano <j.carrano@fu-berlin.de>
+ *
+ * @}
+ */
+
+#ifndef TSL4531x_SAUL_H
+#define TSL4531x_SAUL_H
+
+#include "saul.h"
+
+/** SAUL-compatible structure for illuminance sensor
+ */
+const saul_driver_t tsl4531x_saul_driver;
+
+#endif /* TSL4531x_SAUL_H */
+

drivers/tsl4531x/tsl4531x_saul.c

@@ -34,7 +34,7 @@ static int _read(const void *dev, phydat_t *res)
     return nvals;
 }
 
-const saul_driver_t tsl2561_illuminance_saul_driver = {
+const saul_driver_t tsl4531x_saul_driver = {
     .read = _read,
     .write = saul_notsup,
     .type = SAUL_SENSE_LIGHT