There are 2 problems running Android on this hardware:
- The touch input is like a touchpad (relative position), while we want to have a touchscreen (absolute position)
- The brightness can not be adjusted
The device hardware used is a: eGalax Inc. USB TouchController
This repo's folder touchscreen-fix contains a file Vendor_0eef_Product_0001.idc
Copy this file to the Shuttle PC in the folder: /system/usr/idc/
Then reboot and run the Calibration app
The touchscreen should be fully operational now
The hardware can be controlled here: /sys/class/backlight/acpi_video0
If you open a terminal (attach a USB keyboard and press with Alt-F1) you can manually set the brightness:
cd /sys/class/backlight/acpi_video0
cat max_brightness will give you: 7
So we can set the brightness from 0-7
Read the actual value with:
cat actual_brightness this gives me 4
Set the brighness to 2:
echo 2 >> brightness
Since it is very boresome to manually set the brightness every time, I created an app to do it for me. The app actually uses these commands in a shell. Down side is that it will need super-user privileges.
The app is in the folder: brightness-fix
The source code of this app is also included