How do I include an *.a library file in an Android project with NDK?

I need to make an android program that controls an OTG USB device

I have the device's android library as an *.a (libdevice_api.a) file, and the associated header file (device.h)

The library's documentation is very old and shows a project that uses Android.mk for a sample build, but I would prefer to do this using CMake

How do I include this .a file and the header file in my project using CMake? Currently all my NDK code is in /app/src/main/cpp. As a first sample program, I would ideally like to be able to include the .a file to my project and use the library's getVersion() function to test if it worked. Here is my current CMakeLists.txt file:

# For more information about using CMake with Android Studio, read the # documentation: https://d.android.com/studio/projects/add-native-code.html # Sets the minimum version of CMake required to build the native library. cmake_minimum_required(VERSION 3.4.1) #SET ( CMAKE_C_FLAGS_RELEASE "-DCONFIG_RELEASE -O2" ) # Creates and names a library, sets it as either STATIC # or SHARED, and provides the relative paths to its source code. # You can define multiple libraries, and CMake builds them for you. # Gradle automatically packages shared libraries with your APK. add_library( # Sets the name of the library. mirics-jni # Sets the library as a shared library. SHARED mirics-jni.cpp ) # Searches for a specified prebuilt library and stores the path as a # variable. Because CMake includes system libraries in the search path by # default, you only need to specify the name of the public NDK library # you want to add. CMake verifies that the library exists before # completing its build. find_library( # Sets the name of the path variable. log-lib # Specifies the name of the NDK library that # you want CMake to locate. log ) # Specifies libraries CMake should link to your target library. You # can link multiple libraries, such as libraries you define in this # build script, prebuilt third-party libraries, or system libraries. target_link_libraries( # Specifies the target library. mirics-jni # Links the target library to the log library # included in the NDK. ${log-lib} ) include_directories()