Index: uspace/lib/libblock/libblock.c
===================================================================
--- uspace/lib/libblock/libblock.c	(revision 8786aa5c151fa5280b899437cecc4930c636823b)
+++ uspace/lib/libblock/libblock.c	(revision dccf72146c31b468c546d35ed8f671e5e26cda76)
@@ -714,5 +714,5 @@
 
 	memcpy(devcon->comm_area, data, devcon->pblock_size * cnt);
-	rc = read_blocks(devcon, ba, cnt);
+	rc = write_blocks(devcon, ba, cnt);
 
 	fibril_mutex_unlock(&devcon->comm_area_lock);