I have added a USB soundcard and some speakers to my Slug, this is described elsewhere in this wiki. Now I also wanted to add a LCD, and preferably use a homemade USB-attached LCD (as decribed here: http://forums.bit-tech.net/showthread.php?t=115461(approve sites)).

I started out with installing the kernel module for the display:

ipkg install kernel-module-cdc-acm depmod -a modprobe cdc-acm

The display is at /dev/ttyACM0:

dmesg ... drivers/usb/class/cdc-acm.c: This device cannot do calls on its own. It is no modem. cdc_acm 1-2.3:1.0: ttyACM0: USB ACM device[br] usbcore: registered new driver cdc_acm drivers/usb/class/cdc-acm.c: v0.25:USB Abstract Control Model driver for USB modems and ISDN adapters

To make use of the display Lcdproc is installed...

ipkg install lcdproc

...and configured:

nano /etc/LCDd?.conf

Driver=MtxOrb?

1. Matrix Orbital driver ##

[MtxOrb?]

1. Select the output device to use [default: /dev/lcd]

Device=/dev/ttyACM0

1. Set the display size [default: 20x4]

Size=20x2

1. Set the display type [default: lcd; legal: lcd, lkd, vfd, vkd]

Type=lcd

To get info from the mediaplayer MPD to LCDProc? the script mpclcd (<a href="http://lcdproc.spacedout.nl/download.php?file=mpdlcd.pl(approve sites)">(Link)</a> is used. This is not to fun to install, and it does not even get installed :(

ipkg install perl

ipkg install perl-module-io-socket

ipkg install perl-module-io ipkg install perl-module-exporter-heavy ipkg install perl-module-fcntl ipkg install perl-module-extutils-makemaker ipkg install perl-module-vars ipkg install perl-module-cwd ipkg install perl-module-config-heavy ipkg install perl-module-extutils-mm ipkg install perl-module-extutils-mm-unix ipkg install perl-module-extutils-my ipkg install perl-module-extutils-manifest ipkg install perl-module-carp-heavy ipkg install perl-dev ipkg install perl-module-file-spec-unix ipkg install perl-module-extutils-command ipkg install perl-module-file-glob ipkg install perl-module-extutils-install ipkg install perl-module-extutils-packlist ipkg install perl-module-autosplit ipkg install perl-module-pod-man ipkg install perl-module-getopt-long ipkg install perl-module-extutils-command-mm ipkg install make ipkg install perl-module-lib ipkg install perl-module-data-dumper ipkg install perl-module-bytes

ipkg install perl-module-io-file

ipkg install perl-module-text-parsewords

ipkg install perl-module-locale

ipkg install perl-module-posix

ipkg install perl-module-universal

ipkg install perl-module-utf8

ipkg install perl-module-utf8-heavy

ipkg install perl-module-unicore-pva

ipkg install perl-module-unicore-exact ipkg install perl-module-text-abbrev ipkg install perl-module-test-harness ipkg install perl-module-extutils-mkbootstrap //ipkg install perl-module-scalar-util ipkg install perl-module-cpan ipkg install perl-module-opcode ipkg install perl-module-re ipkg install perl-module-cpan-firsttime perl-module-term-readline perl -MCPAN -e shell force install Scalar::Util

ipkg install perl-module-list-util

ipkg install perl-module-test-more

 ipkg install perl-pod 

Module::Build: wget http://search.cpan.org/CPAN/authors/id/K/KW/KWILLIAMS/Module-Build-0.2808.tar.gz

 tar zxvf Module-Build-0.2808.tar.gz 

cd Module-Build-0.2808/

  perl Build.PL
  ./Build
  ./Build test
  ./Build install 
  cd ..

MPD.pm - http://search.cpan.org/~jquelin/Audio-MPD/

 wget http://search.cpan.org/CPAN/authors/id/J/JQ/JQUELIN/Audio-MPD-0.19.1.tar.gz
 tar zxvf Audio-MPD-0.19.1.tar.gz

cd Audio*

    perl Makefile.PL
    make
    make test
    make install

If mpd is running, you can force the full non-regression test suite to be ran by using:

    MPD_TEST_OVERRIDE=1 make test

LCDStuff? http://lcd-stuff.berlios.de/(approve sites) ipkg install slugos-native ipkg install libc6-dev ipkg install pkgconfig ipkg install libglib-2.0-0

wget http://ipkg.nslu2-linux.org/feeds/optware/nslu2/cross/stable/glib_2.9.6-1_armeb.ipk ipkg install glib_2.9.6-1_armeb.ipk

 PACKAGE_CFLAGS="/opt/lib/pkgconfig/glib-2.0.pc"

root@Slug:/usr/src/lcd-stuff-0.1.4# export PACKAGE_CFLAGS root@Slug:/usr/src/lcd-stuff-0.1.4# echo $PACKAGE_CFLAGS /opt/lib/pkgconfig/glib-2.0.pc