November 6, 2019 update:
  • There's a new open source Cardboard SDK for iOS and Android NDK that offers a streamlined API, improved device compatibility, and built-in viewer profile QR code scanning. A corresponding Unity package (SDK) is planned for a future release. We recommend that all developers actively building for Google Cardboard migrate (iOS, Android NDK) to the new Cardboard SDK.
October 15, 2019 update:
  • The Daydream View VR headset is no longer available for purchase. However, you can continue to use the existing Google VR SDK to update and distribute your apps to the Google Play Store, and make them available to users in the Daydream app.

Debugging the 6DoF faceplate and Mirage Solo using adb via Wi-Fi

The experimental 6DoF faceplate uses the USB port on the Mirage Solo for power and communications with the headset, which means the USB port operates in host mode. When using adb for debugging, however, the USB port on the Mirage Solo needs to operate in device mode because the PC it's connected to is operating in host mode. This means adb can't access the Mirage Solo via USB while the 6DoF faceplate is plugged in.

The best alternative for debugging in this scenario is to use Wi-Fi for connecting adb to the Mirage Solo.

  1. Determine your development machine IP address (ipconfig on Windows, and ifconfig on macOS).
  2. Identify the IP address of the Mirage Solo. If you don't know it, perform these steps to identify it:

    1. Using a USB cable, connect the Mirage Solo to a PC.
    2. Verify that the PC and the Mirage Solo can communicate with each other over Wi-Fi. For example, run adb shell ping YOUR.HOST.IP and check that traffic can pass between the devices.
    3. In the command line, run adb shell ip addr show wlan0, and note the IP address (listed on the line that begins MIRAGE.SOLO.IP.ADDRESS/MASK).

         $ adb shell ip addr show wlan0
         5: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state 
         UP group default qlen 3000
             link/ether M:A:C:A:D:D:R:E:S:S brd ff:ff:ff:ff:ff:ff
             inet MIRAGE.SOLO.IP.ADDRESS/MASK brd MIRAGE.SOLO.IP.127 scope 
             global wlan0
             valid_lft forever preferred_lft forever
             inet6 IP::V6::A:DD:R:E:SS/MASK scope link flags 800
             valid_lft forever preferred_lft forever
      
  3. Connect adb to the Mirage Solo for use over Wi-Fi.