Dear sir, Currently i m using 4x4 Maatix key pad. To this we can implemnt 16Key functionalities. I have 16key functionalities more to implement. i.e.single key can be used as multiple key functionality. For example norma mobile phone key pad where for text message, Numeric '1' is there under it ',',';','.'. In Numeric key '2' under it 'a','b','c' is there.
I want to write an key pad driver where it should work as Mobile phone key pad. Pls give me some sggestion and sample Code regarding this.