[Lcd-linux] Re-vitalizing lcd-linux for Raspberry Pi?

[Sven G. <li...@fu...>]

Hello,

looking for a more generic Solution than this one:
http://learn.adafruit.com/drive-a-16x2-lcd-directly-with-a-raspberry-pi
(lots of userland GPIO fiddling)

I found http://lcd-linux.sourceforge.net/

I would prefer using this because this would allow for running ncurses
compatible applications on HD44780 compatible displays, right?

Two Questions:

* Is it possible to compile your code for recent Kernels? Raspberry Pi is
currently at 3.6.x AFAIR

For now I ended up with the following error:
 lcd-linux-0.13.9/ > make
- KERNEL_SRC_DIR: /lib/modules/3.7.9-01010-gc1bd951/build
- DESTDIR: /lib/modules/3.7.9-01010-gc1bd951/misc
make TOPDIR=wd -f wd/Makefile -C lcd-linux lcd-linux.o
make[1]: Entering directory /home/geg/download/lcd-linux-0.13.9/lcd-linux'
touch /home/geg/download/lcd-linux-0.13.9/include/lcd-linux.ver
gcc -D__KERNEL__ -DMODULE -I/lib/modules/3.7.9-01010-gc1bd951/build/include -I/home/geg/download/lcd-linux-0.13.9/include -Wall -Wstrict-prototypes -Wno-trigraphs -O2 -fno-common -fomit-frame-pointer -pipe -fno-strict-aliasing  -include "/home/geg/download/lcd-linux-0.13.9/include/lcd-linux.ver" -include "/home/geg/download/lcd-linux-0.13.9/include/asename lcd-linux.o .o.ver" -DEXPORT_SYMTAB -c lcd-linux.c -o /home/geg/download/lcd-linux-0.13.9/modules/lcd-linux.o
In file included from /lib/modules/3.7.9-01010-gc1bd951/build/include/linux/thread_info.h:11:0,
                 from /lib/modules/3.7.9-01010-gc1bd951/build/include/linux/preempt.h:9,
                 from /lib/modules/3.7.9-01010-gc1bd951/build/include/linux/spinlock.h:50,
                 from /lib/modules/3.7.9-01010-gc1bd951/build/include/linux/semaphore.h:13,
                 from lcd-linux.c:50: /lib/modules/3.7.9-01010-gc1bd951/build/include/linux/bug.h:4:21: fatal error: asm/bug.h: No such file or directory compilation terminated.
make[1]: *** [lcd-linux.o] Error 1
make[1]: Leaving directory /home/geg/download/lcd-linux-0.13.9/lcd-linux'
make: *** [default] Error 2

* Am I right in the assumption, that your code has been written for a
HD44780 connected to a parallel port? If so, how much effort would it be to
port your code to the generic Kernel GPIO or even I2C Interface?

Regards

Sven

-- 
Das allgemeine Persönlichkeitsrecht (Art. 2 Abs.1 i.V.m. Art.1 Abs. 1GG)
umfasst das Grundrecht auf Gewährleistung der Vertraulichkeit und Integrität
informationstechnischer Systeme. (BVerfG, 1BvR 370/07)
/me is giggls@ircnet, http://sven.gegg.us/ on the Web