a kernel level Linux Device Driver for a 16x2 character LCD (with HD44780 LCD controller) with 4 bit mode.

A demo video is available here: https://www.youtube.com/watch?v=icP9ckrTLKc

This is a kernel level Linux Device driver to control a 16x2 character LCD (with HD44780 LCD controller) with 4 bit mode. The LCD is interfaced with a micro-controller using GPIO pins. The program has been tested on Linux 3.8.13 debian, and the target board is Beaglebone Black ARM micro-controller.

This project is a continuation of my user level program, which was not originally developed with Linux in mind. The project has been developed in a form of loadable kernel module, cross-compiled in a Desktop PC.

• The datasheet was found from here: https://www.sparkfun.com/datasheets/LCD/HD44780.pdf

• And the LCD was purchased from here: http://www.amazon.com/gp/product/B004MGXOUQ/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1

    				Reference
  

  [1] HD44780U (LCD-II), Hitachi Ltd., Tokyo, Japan, 1998.