From 3f1857008f0f53f08bbac2363c187676f9f21a70 Mon Sep 17 00:00:00 2001
From: Felipe Herranz <felhr85@gmail.com>
Date: Mon, 18 May 2015 18:28:10 +0200
Subject: [PATCH] Problem solved in CH34x devices when trying to write

---
 src/com/felhr/usbserial/CH34xSerialDevice.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/com/felhr/usbserial/CH34xSerialDevice.java b/src/com/felhr/usbserial/CH34xSerialDevice.java
index 8089ade..836a7c6 100644
--- a/src/com/felhr/usbserial/CH34xSerialDevice.java
+++ b/src/com/felhr/usbserial/CH34xSerialDevice.java
@@ -91,7 +91,8 @@ public class CH34xSerialDevice extends UsbSerialDevice
 					&& endpoint.getDirection() == UsbConstants.USB_DIR_IN)
 			{
 				inEndpoint = endpoint;
-			}else
+			}else if(endpoint.getType() == UsbConstants.USB_ENDPOINT_XFER_BULK
+					&& endpoint.getDirection() == UsbConstants.USB_DIR_OUT)
 			{
 				outEndpoint = endpoint;
 			}