This app has some features to handle LTE dongles in Android Car Head Units.
USB Reset (UsbResetManager.kt)
Executes setprop sys.usb.config none as root.
USB_ModeSwitch (UsbModeSwitchManager.kt)
Executes the command usb_modeswitch with some hard-coded parameters. For now, you have to change them manually
in the file UsbModeSwitchManager.kt and generate the APK.
Huawei switchDebugMode (HuaweiSwitchDebugModeManager.kt)
Access the address http://192.168.8.1/html/switchDebugMode.html in a WebView so that it can execute the JavaScript code provided by the LTE dongle.
Wi-Fi Scan (EthernetWifiManager.kt)
Starts a Wi-Fi scan so that the application can see if prioritized APs are available. If so, the application shuts down the ethernet interface in order to establish the Wi-Fi connection. The parameters (interface name and selected APs) can be changed at Settings.
Ethernet / Wi-Fi Switch (EthernetWifiManager.kt)
If there is a prioritized Access Point available, the app shuts down the ethernet interface in order to establish the Wi-Fi connection. If a Wi-Fi connection is no more available, the app turns the ethernet interface on again.
Some events trigger the Ethernet / Wi-Fi switch procedure:
- Application starting (at the boot)
- Screen turns on (after standby)
- Wi-Fi interface enabled
- Wi-Fi disconnection
- Button "Wi-Fi Scan" at the main screen
- ACTION_TIME_TICK -> every 5 minutes