From aa39fbb17e068b05f9dcee3c8369aa9804e022f8 Mon Sep 17 00:00:00 2001
From: Felipe Herranz <felipe.herranz@gmail.com>
Date: Sat, 27 Feb 2016 19:40:34 +0100
Subject: [PATCH] Update README.md

Info about synchronous operations
---
 README.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/README.md b/README.md
index 040fc6ea..95ad7a24 100644
--- a/README.md
+++ b/README.md
@@ -103,6 +103,15 @@ Close the device:
 serial.close();
 ~~~
 
+I recommend using UsbSerial as shown above but if you want to perform write and read operations in synchronous way it is possible using these methods:
+~~~
+public boolean syncOpen();
+public int syncWrite(byte[] buffer, int timeout)
+public int syncRead(byte[] buffer, int timeout)
+public void syncClose();
+~~~
+
+
 In Android usb api, when a usb device has been close it must be reopened
 ~~~
 UsbDevice device;