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AM1707 + Linux. How to write a simple ISR from GPIO (or module, or driver)

Igor Koval
Prodigy 50 points
Other Parts Discussed in Thread: AM1707

Hello !

First of all, great sorry for my English.

My task is: to service interrupt from button (connected to GPIO) and to switch LED on/off in case of interrupt.

I have a devkit for AM1707: http://www.ti.com/tool/tmdxevm1707

I have set a virtual machine with UBUNTU and CodeSourcery, and then I have create a simple C-program ("Hello World") and successfully build it, load with TFTP to the board and start. It works fine. Now I need to solve my task. But I am a novice in Linux. What should I do ? Should I create a module ? Or driver ? Or daemon ? Can you give me a right direction (it may be an app.note, article, program example etc.) in my work ?

Best regards, Igor