LMK.JAVAIO

LMK.JAVAIO is a JAVA GPIO library which supports LeMaker Guitar board. If we want to use it in your Android system, we need copy the library code to android source code tree and compile it .

Usage：

Download necessary source code

Download the Guitar Android source code into your workspace:

cd your_workspace/
git clone https://github.com/LeMaker/android-actions.git ` 

Download the Guitar JAVA GPIO library into your workspace:

git clone https://github.com/LeMaker/LMK.JAVAIO.git

Configuration environment

cd android-actions/android/
source build/envsetup.sh
lunch 

Copy the JAVA GPIO library code into android source code (in android-actions/android/system/ directory)

cp -rf ../../LMK.JAVAIO/hardware  system/

Compiling

Compile the JAVA GPIO library:

cd system/hardware/
mm -j8  
cd system/hardware/jni/
mm -j8  

Push to Guitar on-board system

After that we will make out lmkhardwarejni.so in android-actions/android/out/target/product/lemaker_guitar_bbb/system/lib/ directory, then we can use adb tool to push it to Guitar on-board Android system directory /system/lib/.