How to disable system auto sleep for AM37x Power Management

Hi Biser,

Thank you for link. My kernel build from the company that I bought my POS terminal. In their sdk (api) the power management not implemented fully. The Pos terminal it turns itself off after 30 second. Because of that my Wi-Fi connection drop and I have to re- enter my credentials.

When I look at in my Pos Terminal and view the file "/sys/power/state" it shows simple word "mem". How to I make changes in this file so I can disable the auto sleep mode?

I am using QT to develop “pos terminal” base application using ti-sdk-am37x-evm-05.07. I was hoping to get some idea/info how to use ti-sdk-am37x-evm-05.07 for power management.

To open a QT I created bash file for my Ubuntu-12.04 as shown below.

#!/bin/bash

cd /home/ntms/ti-sdk-am37x-evm-05.07.00.00/linux-devkit

sleep 2

source environment-setup

sleep 2

cd /home/ntms/ti-sdk-am37x-evm-05.07.00.00/linux-devkit/arm-arago-linux-gnueabi/usr/share/qtopia

sleep 2

./environment-setup

sleep 3

/home/ntms/Qt5.4.1/Tools/QtCreator/bin/qtcreator