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Linux ADK

Introduction

This software aims to turn your GNU/Linux machine into an Android Accessory.

It initializes any Android device connected via USB as detailed on Android website:

http://source.android.com/tech/accessories/aoap/aoa.html

How to use

$ ./linux-adk --help
Linux Accessory Development Kit

usage: ./linux-adk [OPTIONS]
OPTIONS:
	-a, --aoa-max-version
		AOA maximum version to be used. Default is no maximum version.
	-d, --device
		USB device product and vendor IDs. Default is "18d1:4e42".
	-D, --description
		accessory description. Default is "Sample Program".
	-m, --manufacturer
		manufacturer's name. Default is "Google, Inc.".
	-M, --model
		model's name. Default is "AccessoryChat".
	-n, --vernumber
		accessory version number. Default is "1.0".
	-N, --no_app
		option that allows to connect without an Android App (AOA v2.0 only, for Audio and HID).
	-s, --serial
		serial numder. Default is "0000000012345678".
	-u, --url
		accessory url. Default is "https://github.com/gibsson".
	-v, --version
		Show program version and exit.
	-V, --verbose
		Sets libusb verbose mode.
	-h, --help
		Show this help and exit.

Example:

$ ./linux-adk -d 18d1:4ee7 -a 1 -M "DemoKit" -D "Demo ABS2013"

How to build on Linux

First you need to download the dependencies:

$ sudo apt install libusb-1.0-0-dev build-essential

As of today (alpha v0.4), autotools have not been configured.

Therefore the build is done manually as follow:

$ make

This software requires the use of libusb.

For cross-compiling, several environment variables must be set manually:

$ export ARCH=arm
$ export CROSS_COMPILE=<custom_toolchain>
$ export CFLAGS="-I<path_to_libusb_headers> -I<path_to_libasound_headers>"
$ export LDFLAGS="-L<path_to_libusb> -L<path_to_libasound>"
$ make

How to build on Windows

1. You need install Visual Studio (tested with v2019):

https://visualstudio.microsoft.com/downloads/

2. Download and build libusb for Windows using this solution:

https://github.com/libusb/libusb/blob/master/msvc/libusb_2019.sln

3. Download and build linux-adk using this solution:

https://github.com/gibsson/linux-adk/blob/master/msvc/linux-adk.sln

Couple of things to note for linux-adk.exe to work properly on Windows:

1. First make sure that adb is not running, otherwise linux-adk won't be able to get the endpoint.

$ adb kill-server

2. Once the platform switches to Accessory mode, make sure in the Device Manager that the device driver is:

   • Manufacturer: WinUsb Device
   • Model: ADB Device

License

linux-adk is distributed under the term of the General Public License version 2 (GPLv2)

See gpl-2.0.txt for the full license content

Changelog

v0.4: Add verbose option to enable libusb debug logs; Add Windows support; Switch to AccessoryChat app by default v0.3: Remove Audio hack as not supposed to be (more on https://code.google.com/p/android/issues/detail?id=56549) v0.2: Audio exception when launched in no-app v0.1: Original commit for ABS2013 demo

Author

Gary Bisson [email protected]