diff --git a/linux/CMakeLists.txt b/linux/CMakeLists.txt
deleted file mode 100644
index 4af2dfc..0000000
--- a/linux/CMakeLists.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-cmake_minimum_required(VERSION 2.6)
-
-link_libraries(X11 Xtst)
-
-add_executable(controller Controller.cpp)
diff --git a/linux/Makefile b/linux/Makefile
new file mode 100644
index 0000000..cb6f651
--- /dev/null
+++ b/linux/Makefile
@@ -0,0 +1,3 @@
+controller: Controller.cpp
+	c++ -o controller Controller.cpp -lX11 -lXtst 
+
diff --git a/linux/README.md b/linux/README.md
index b06aa9b..ec151b2 100644
--- a/linux/README.md
+++ b/linux/README.md
@@ -30,9 +30,9 @@ There is a compiled version in the repositiory (linux/controller)
 Building
 ========
 
-You need libxtst and cmake.  so if those are not present yet, install them:
+You need libxtst. if this is not present yet, install it:
 
-* sudo apt-get install libxtst-dev cmake
+* sudo apt-get install libxtst-dev
 * cd linux
 * mkdir t
 * cd t
@@ -47,7 +47,12 @@ To use the precompiled version you might need to make it executable:
 * chmod a+x controller
 
 
-If there is an error like "bad descriptor" you might not have the kernel driver for ch940g installed:
+If there is an error like "bad descriptor":
+
+1) you might have used the wrong serial-port (/dev/ttyUSB0 or /dev/ttyUSB1) check in the arduino-ide (TOOL>SERIAL_PORT) 
+
+
+2) you might not have the kernel driver for ch940g installed:
 
 * Download http://www.wch.cn/download/CH341SER_LINUX_ZIP.html
 * unzip