Virtual Input manger uses uinput framework to create virtual/user-space input devices & virtio-input infrastructure from QEmu to map the devices on virtual machines

How to Compile

Prerequisite:

• Required minimum gcc version is 7.4.0 or Ubuntu 18.04 release of Ubuntu Host
  

Compile:

• $make clean
  
• $make
  
• Compilation generates vinput-manager & sendkey executables.
  
  

Follow below steps to check volume and power button functionality in CIV-GVTG

Step 1:

• Pre-built binaries are placed in ~/civ/scripts directory
  
• $cd ~/civ/scripts/
  
• $chmod +x vinput-manager sendkey
  

Step 2: Launch vinput-manager

• $sudo ./vinput-manager

Step 3: Launch Android

• Add below two lines under common_options variable in start_android_qcow2.sh script.
  -device virtio-input-host-pci,evdev=/dev/input/by-id/Power-Button-vm0 \
  -device virtio-input-host-pci,evdev=/dev/input/by-id/Volume-Button-vm0 \
  
• Launch CIV using start_android_qcow2.sh script.

Step 4: Use sendkey application to verify volume and power key functionality in android

• Volume Functionality:
  ./sendkey --vm 0 --volume up => Increases volume in CIV
  ./sendkey --vm 0 --volume down => decreases volume in CIV
  
• Power Functionality:
  ./sendkey --vm 0 --power 0 => Short press to trigger Suspend/Resume in CIV
  ./sendkey –vm 0 –power 5 => long press of power key for 5 seconds. Displays power options in Android.
  

Note:

1. Use sendkey application only after launching CIV.
   
2. To set device in to graphical mode.
   $sudo systemctl set-default graphical.target
   $sudo reboot
   

Follow below steps to check volume and power button functionality in CIV-GVTD

Step 1: Pre-built binaries are placed in ~/civ/scripts directory

• $cd ~/civ/scripts
  
• $chmod +x vinput-manager sendkey
  

Step 2: Set the device in multi-user target mode.

• $sudo systemctl set-default multi-user.target
  

Step 3: Update logind.conf file with "HandlePowerKey=ignore" and reboot device

• $sudo vim /etc/systemd/logind.conf
  [Login]
  HandlePowerKey=ignore
  
• $sudo reboot

Step 4: Launch vinput-manager

• $sudo ./vinput-manager --gvtd
  

Step 5:

• Add below 3 lines under cmd field in ini file
  -device virtio-input-host-pci,evdev=/dev/input/by-id/Power-Button-vm0 \
  -device virtio-input-host-pci,evdev=/dev/input/by-id/Volume-Button-vm0 \
  -qmp unix:./qmp-vinput-sock,server,nowait \
  

• eg [extra] #cmd=-monitor stdio cmd=-device virtio-input-host-pci,evdev=/dev/input/by-id/Power-Button-vm0 -device virtio-input-host-pci,evdev=/dev/input/by-id/Volume-Button-vm0 -qmp unix:./qmp-vinput-sock,server,nowait

• Launch CIV: $sudo vm-manager -b civ-1
  

Step 6: Run sendkey application to verify volume and power key functionality in android

• Volume Functionality:
  $./sendkey --vm 0 --volume up => Increases volume in CIV
  $./sendkey --vm 0 --volume down => decreases volume in CIV
  
• Power Functionality:
  $./sendkey --vm 0 --power 0 => Suspend/Resume in CIV
  $./sendkey –vm 0 –power 5 => long press of power key for 5 seconds. Displays power options in android.
  

Steps to install g++ compiler and configure

• By default g++ compiler version is 7.5.0 in Ubuntu 18.04 host OS.
  

• In case g++ version < 7.4, install manually latest version using below mentioned commands.
  

• $ sudo apt install software-properties-common
  

• $ sudo apt install gcc-7 g++-7
  

• $ sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-7 50
  

• $ sudo update-alternatives --config g++
  

• $ Select "g++-7"
  

• command to check version
  $g++ --version
  

Note:
1. Execute/Run vinput-manager before lunching CIV.
2. Use sendkey application to send commands after launching CIV.