To use an external lcd device together with the
/dev/lcd file, you have to call configure with the
'--enable-lcd-monitor' option.

Then you might want to edit server/external.c. You
see there the update_lcd_status() function. Change it
as much as you like, but follow these rules:
- use global linesrv variables (see server/global_vars.h
  and the files it includes) read-only!
- The function doesn't have to be reentrant (forget it if
  you don't know what I'm talking about, it's not important)
  as linesrv is not multithreaded (and won't become it in future).

The update_lcd_status() does nothing else than collecting
data from some interesting global variables (lines, clients, ...)
and print them to /dev/lcd.

The initial code was contributed by
Martin Berentsen berentsen at sent5 dot uni-duisburg dot de

I (S.Fuchs) don't support this code. It's here to get used
but it's your own job to make it useful for your specific
display.

Greetings

S. Fuchs
