sometimes  the device may start with ” login screen”  after you installed software,it casued because there is no space of roofs ,but we can enable  “usb host ” start before “login screen ”
How to enable USB Host mode automatically on startup

  • Open file /etc/rc.local in a text editor with root rights
  • Place below lines just before the last line exit 0

    • echo 1 > /sys/devices/platform/hhtech_gpio/usbpwr_en;
    echo 1 > /sys/devices/platform/hhtech_gpio/usbotgdrv_en;
    modprobe ohci-hcd;
    modprobe usb-storage;

  • Reboot

I tested this method and works fine on my SmartQ 5. My usb mouse automatically operates after boot.

One advantage of auto-enabling USB Host mode is that you can use a usb keyboard if you have a “login screen” situation.