Hi now the keypad in Ben NanoNote[1] is work. problem is I don't know how to write the special assemble key of matrix_key driver. some kind of 'SHIFT', like the red key in [2]. when I press the 'RED UP POINT' + 'W' = '@' attach is the Ben keypad driver platform.c:260 ~ 364 lines. thanks for any advice [1] http://www.qi-hardware.com/products/ben-nanonote/ [2] http://downloads.qi-hardware.com/hardware/mechanical/ben/2009_08_26/keyboard_problem_2.JPG -- Best Regards Xiangfu Liu Email: xiangfu at qi-hardware dot com Web: http://www.qi-hardware.com