AnsweredAssumed Answered

LCD Timeout configuration in Lcd driver based on Touch and keypad interrupt

Question asked by Venkatesh P on Mar 13, 2014

Hi all,

            I have used 320x240 lcd with resistive touch with keypad tca8421 support.LCD displays images application by using QT .

I need power consumption in the lcd display ,i have used  PWM for LCD brightness control .

Without any input some times (example 3 min) from lcd touch or keyboard that time i want power off the LCD using this LCD pwm brightness,after that getting any input from LCD touch or keypad immediatly i wnt power on LCD .

I know the PWM control ON and OFF,But i don't know to add this lcd /keypad time out support in QT also kernel source.

 

Thnkas by,

Venkat

Outcomes