Interrupt routine for User Button

Hi,

I am looking for Buttons to be handled via interrupt routines. Instead of
polling the /dev/buttons indefinitely or access via gpio.

I want to write piece of code in the interrupt which needs to be executed
whenever we press the user button.

My expectation is when i press the key the led0 to be glown. But this needs
to be done via interrupt routines instead of polling the gpio.

I understand that already buttons are connected in interrupt lines
(EINT8,EINT11,EINT13,EINT14,EINT15,EINT19).

This may be linux question. But please help me, i am struggling for past
few days.

thanks
suresh

You may find the answer in the samsung user manual. For implementing
interrupt in Linux, you would need to look for interrupt in device driver.

Hope these help.