Debian >> Android
virtual adb device
參考資訊：
1. pwl999
2. zengjfgit
3. android-adbd-for-linux
4. linuxandroid-adb-toolusbconsole
5. how-to-fix-adb-devices-message-unauthorized-device-on-macos
使用情境：
在macOS下，透過adb連接到Ubuntu 20.04 x64(Virtualbox)
Ubuntu 20.04 (192.168.15.221)
$ sudo modprobe g_ffs idVendor=0x18d1 idProduct=0x4e42 iSerialNumber="buildroot"
$ sudo mkdir -p /dev/usb-ffs/adb
$ sudo mount -t functionfs adb /dev/usb-ffs/adb -o uid=2000,gid=2000
$ cd
$ git clone https://github.com/kiddlu/android-adbd-for-linux
$ cd android-adbd-for-linux
$ echo "" > cross.cmake
$ vim adbd/adb.c
int SIMPLE_AUTH = 1;
$ mkdir build
$ cd build
$ cmake ..
$ make -j4
$ ./adbd
$ netstat -l | grep 5555
tcp 0 0 0.0.0.0:5555 0.0.0.0:* LISTEN
macOS (建立SSH Tunnel)
$ ssh -L 127.0.0.1:5555:192.168.15.221:5555 user@192.168.15.221
macOS (連接Ubuntu adb device)
$ rm ~/.android/adbkey
$ adb kill-server
$ adb devices
List of devices attached
emulator-5554 device