平臺

libusb版本：libusb-1.0.20

Ubuntu： 14.04

NDK：android-ndk-r9d

測試手機：三星S4

開發(fā)板：GD32

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Building:

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To build libusb for Android do the following:

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1. Download the latest NDK from:

http://developer.android.com/tools/sdk/ndk/index.html

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2. Extract the NDK.

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3. Open a shell and make sure there exist an NDK global variable

set to the directory where you extracted the NDK.

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4. Change directory to libusb's "android/jni"

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5. Run "ndk-build".（需要設置環(huán)境變量或者使用絕對路徑）

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The libusb library, examples and tests can then be found in:

"android/libs/$ARCH"

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Where $ARCH is one of:

armeabi（測試使用此架構，armeabi-v7a未測試）

armeabi-v7a

x86

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Installing:

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For a rooted device it is possible to install libusb into the system

image of a running device:

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1. Connect the device to a machine running ADB.

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2. Execute the following commands on the machine

running ADB:

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# Make the system partition writable

adb shell su -c "mount -o remount,rw /system"

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# Install libusb

adb push obj/local/armeabi/libusb1.0.so /sdcard/

adb shell su -c "cat > /system/lib/libusb1.0.so < /sdcard/libusb1.0.so"

adb shell rm /sdcard/libusb1.0.so

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Test:

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1. new project file

1) 任意目錄下mkdir libusb_for_android

2) 在libusb_for_android/ 添加libusb1.0.so、libusb.h、usbtest2.0.c，并且新建jni目錄

3) 在jni/ 新建Android.mk和Application.mk

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2. 在jni/下運行：/opt/android_ndk/android-ndk-r9d/ndk-build

在libusb_for_android/libs/armeabi/下即可找到產生的可執(zhí)行文件usbtest

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3. 將usbtest adb push到手機的sdcard/

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4. 將開發(fā)板和手機相連，然后再手機的超級終端下運行:./usbtest

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總結

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