Index: lib/hal/hal_sam_i2c_asf.c
===================================================================
--- lib/hal/hal_sam_i2c_asf.c	(revision 91684)
+++ lib/hal/hal_sam_i2c_asf.c	(working copy)
@@ -362,7 +362,7 @@
 
 
     // Send 0x00 as wake pulse
-    twi_write_byte(i2c_master_instance, 0x00);
+    (void) twi_probe(i2c_master_instance, 0x00);
 
     // rounded up to the nearest ms
     atca_delay_ms(((uint32_t)cfg->wake_delay + (1000 - 1)) / 1000);   // wait tWHI + tWLO which is configured based on device type and configuration structure