Do you have any idea how can we configure and turn on the wi-fi hotspot using the command line (ADB console)?
You could try this:
adb shell am start -n com.android.settings/.TetherSettings adb shell input keyevent 20 adb shell input keyevent 66
The first command opens the Settings page for Tethering and Hotspot while the latter simulate key presses: Down and Enter respectively.
Note: For different Android versions you may have to adjust the simulation of key presses depending on where the hotspot setting is located under settings.
Special Credits : Firelord and Kristopher
Firelord originally posted this as a comment, so I put this as an answer as comments are easily deleted or difficult to find