Description:

LCD-Linux is a Linux software abstraction layer to drive LCD alphanumeric displays.
It features complete VT102 console emulation and aims to be as general and flexible as
possible. It consists of two kernel modules, lcd-linux and the display driver. Currently,
only the Hitachi HD44780 is supported, but drivers for other LCD controllers can be
easily written.

Supported controllers:

• HD44780 (and compatibles)

  HD44780 driver features:

  • Multi controller support.
  • 8 and 4 bit mode support.
    
  • Used 4 bits can be specified at compile time.
  • I/O timings can be specified at compile time.
  • Supports all screen sizes up to the maximum of the HD44780 (80 characters per controller).
  • Supports user definable fonts.
  • Supports full read and write from the device to read the display state and set user definable characters.
  • Supports both available font sizes when the HD44780 is run in single line mode.

Downloads:

Download the latest stable release: lcd-linux-0.13.9.tar.gz.
Release date: 4 July 2010.

CVS:

The unstable release is available through the CVS system.

export CVS_RSH="ssh" (for bash shell)
setenv CVS_RSH "ssh" (for tcsh shell)

cvs -d:pserver:anonymous@lcd-linux.cvs.sourceforge.net:/cvsroot/lcd-linux login
cvs -z9 -d:pserver:anonymous@lcd-linux.cvs.sourceforge.net:/cvsroot/lcd-linux co lcd-linux-new

You can also browse the CVS repository of LCD-Linux with your web browser.
The web pages are generated dynamically at the time you request them and are always up to date.

The CVS version is the experimental version. It may hang your machine
or not even compile. You have been warned !

Useful documents:

• HD44780 datasheet
• HD66712 datasheet
• M50530 datasheet
• "How to use intelligent LCDs", by Julyan Ilett (part 1 and part 2)

Mailing list:

There is a LCD-Linux mailing list where users can post problems,
questions, suggestions and everything else that is related to LCD-Linux.
Please subscribe/unsubscribe here, or send an empty email
with subject "subscribe" to
lcd-linux-users-request at lists.sourceforge.net

Links:

Some nice links using LCD-Linux in some way

• LCD4Linux
  LCD4Linux is a small program that grabs information from the kernel and some subsystems
  and displays it on an external liquid crystal display.
• A useful application for MythTV.

Project pages:

• Sourceforge
• Freshmeat

This site is hosted at Sourceforge.net.