This guide is how to setup the Antec Fusion 430 Case to work with Mythdora 10 and MythTV. I found a lot of guides on how to setup the drivers, but they were all out of date.

Pieces

There are three things you need to get running :

1. lirc_imon kernel driver
2. LCDd daemon
3. mythlcdserver daemon

All of these things came installed w/ Myth and didn’t require any additional patching or compiling.

To see the exact device we’re working with, run lsusb :

Bus 003 Device 002: ID 15c2:ffdc SoundGraph Inc. iMON PAD Remote Controller

This is all for the “Old” imon, or 1st generation, or “FFDC” version of the LCD device.

1. LIRC lirc_imon kernel driver

yum install lirc lirc-libs

Edit /etc/modprob.conf and add this line :

options lirc_imon display_type=1

The display_type=1 option was not documented well, but that was the key in making the module work. Without it I was seeing the following in the /var/log/messages after adding debug=1 to the above. I also was missing /dev/lcd0 even though the kernel driver was loading!

Nov 22 21:18:09 localhost kernel: lirc_imon: imon_probe: found IMON device
Nov 22 21:18:09 localhost kernel: lirc_imon: imon_probe: found IR endpoint
Nov 22 21:18:09 localhost kernel: lirc_imon: imon_probe: found VFD endpoint
Nov 22 21:18:09 localhost kernel: lirc_imon: imon_probe: device has no display
Nov 22 21:18:09 localhost kernel: lirc_imon: ir_onboard_decode: 1
Nov 22 21:18:09 localhost kernel: lirc_dev: lirc_register_plugin: sample_rate: 0
Nov 22 21:18:09 localhost kernel: lirc_imon: imon_probe: Registered iMON plugin(minor:1)
Nov 22 21:18:09 localhost kernel: lirc_imon: imon_probe: iMON device on usb<3:2> initialized

That “device has no display” line is cured by the “display_type=1″ option. /var/log/messages now looks like this (with debug=1) :

Nov 22 21:21:55 localhost kernel: lirc_imon: Driver for Soundgraph iMON MultiMedia IR/VFD, v0.4
Nov 22 21:21:55 localhost kernel: lirc_imon: Venky Raju 
Nov 22 21:21:55 localhost kernel: lirc_imon: imon_probe: found IMON device
Nov 22 21:21:55 localhost kernel: lirc_imon: imon_probe: found IR endpoint
Nov 22 21:21:55 localhost kernel: lirc_imon: imon_probe: found VFD endpoint
Nov 22 21:21:55 localhost kernel: lirc_imon: ir_onboard_decode: 1
Nov 22 21:21:55 localhost kernel: lirc_imon: vfd_proto_6p: 1
Nov 22 21:21:55 localhost kernel: lirc_dev: lirc_register_plugin: sample_rate: 0
Nov 22 21:21:55 localhost kernel: lirc_imon: imon_probe: Registered iMON plugin(minor:1)
Nov 22 21:21:55 localhost kernel: lirc_imon: Registering VFD with sysfs
Nov 22 21:21:55 localhost kernel: lirc_imon: imon_probe: iMON device on usb<3:2> initialized
Nov 22 21:21:55 localhost kernel: usbcore: registered new interface driver lirc_imon

At this point you should have a /dev/lcd0 and you can test it with this command :

echo "hello world" > /dev/lcd0

OK, now that we have a working kernel driver, let’s move on to the LCD daemon

2. LCDd Daemon

1. yum install lcdproc
2. Edit /etc/sysconfig/lcdproc/LCD.conf to look like this :

   [server]
   Driver=imon
   Bind=127.0.0.1
   Port=13666
   
   # Sets the reporting level; defaults to 2 (warnings and errors only).
   #ReportLevel=3
   
   # Should we report to syslog instead of stderr ? Default: no
   ReportToSyslog=yes
   
   # Sets the default time in seconds to displays a screen.
   WaitTime=5
   
   # User to run as.  LCDd will drop its root priviledges,
   # if any, and run as this user instead.
   User=nobody
   
   # If yes, the the serverscreen will be rotated as a usual info screen. If no,
   # it will be a background screen, only visible when no other screens are
   # active.
   ServerScreen=no
   
   # The server will stay in the foreground if set to true.
   #Foreground=no
   
   DriverPath=/usr/lib/lcdproc/
   
   # GoodBye message: each entry represents a display line; default: builtin
   GoodBye=""
   GoodBye=""
   
   ToggleRotateKey=Enter
   PrevScreenKey=Left
   NextScreenKey=Right
   
   [menu]
   MenuKey=Escape
   EnterKey=Enter
   UpKey=Up
   DownKey=Down
   
   [imon]
   Device=/dev/lcd0
   Size=16x2
   

   Note that you want the imon driver, not imon_lcd or any other one.

3. Boot the driver

   service LCDd restart
   tail /var/log/messages
   dmesg | tail
   

At this point you should see the output of LCDd on the VFD display. If not, rinse and repeat.

3. mythlcdserver

Follow these directions on mythtv.org to turn on the LCD settings in MythTV from the front-end in the Appearance menu. Restart the front-end and it should launch mythlcdserver. If not, you can launch mythlcdserver as the same user as the front-end.

For today’s installment we go over getting some basic libraries up to shape. If your Linux distro is old enough, you can’t use 3rd party binaries like Adobe Acrobat Reader (acroread), Firefox, and Flash because the GTI+ and GLIB libraries that they are compiled against are just too damned old. So we have to both install local copies, and have the applications find those copies instead of the system ones.

On Versions

It’s good to note that you can upgrade a newer version of most things, but don’t expect to always get the newest version. Instead you need to find the next newest version that still works on your old Linux distro while satisfying the prerequisites for your favorite applications.

GTK+ and GLIB and RHEL4

Here are the packages I installed in order to get GTK+ and GLIB up to date enough to use Firefox, Pidgin, Thunderbird, Acrobat, and some other goodies on Red Hat EL4 (Fedora 4 should be similar) :

1. atk-1.25.2.tar.bz2 – Needed by Pidgin
2. pixman-0.13.2.tar.gz
3. libxml2-2.6.30.tar.bz2 – Needed by Pidgin, the EL4 version is horribly broken and Gtalk / Jabber end up w/ a very weird send-only behavior
4. pkg-config-0.23.tar.gz – Needed by most everything. You will have a new package repository in $HOME/lib/pkg-config for your new libraries.
5. cairo-1.8.6.tar.gz
6. dbus-1.2.12.tar.gz
7. dbus-glib-0.78.tar.gz
8. glib-2.19.5.tar.bz2
9. pango-1.22.4.tar.bz2
10. zlib-1.2.3.tar.bz2 – RHEL4 version is crap.
11. gtk+-2.14.7.tar.bz2

Order does count, but I don’t remember what order I compiled and installed these in. Trial and error will tell. Use config_gapp from Part 1 to compile.

You will need to do this on each of the above :

$ tar xvfj gtk+-2.14.7.tar.bz2
$ cd gtk+-2.14.7
$ ../config_gapp
$ make
$ make install

Remember this is installing these libraries into $HOME/lib using the config_gapp script.

Some of the libraries might take some extra args to make things happy.

1. zlib – I need to add -fPIC to make mozilla happy

   $ CFLAGS=-fPIC ../config_gapp

2. gtk+-2.14.7 – I had to add –without-libjasper

   $ ../config_gapp --without-libjasper

Some blood sweat and tears later, and now you should be able to run a binary version of Firefox if you are on a 32-bit RHEL4 machine.

Running Apps using the Libraries in your Home Directory

In order to have applications grab the libraries in your home directory instead of the system ones, I use a wrapper script that sets up a bunch of needed environment variables. I call this script “run_gapp” :

#!/bin/sh
#
# install apps using local versions of libraries for this platform
#
# This script is for an x86_64 machine
# Remove 64 anywhere below if you are on a 32-bit build
 
LOC_HOME=/home/me
 
export CPPFLAGS="-I${LOC_HOME}/include -I/usr/X11R6/include $CPPFLAGS"
export CFLAGS="-I${LOC_HOME}/include -I/usr/X11R6/include $CFLAGS"
export CXXFLAGS="-I${LOC_HOME}/include -I/usr/X11R6/include $CXXFLAGS"
export LDFLAGS="-L${LOC_HOME}/lib -L/usr/X11R6/lib -L/usr/lib64 $LDFLAGS"
export PKG_CONFIG_PATH="${LOC_HOME}/lib/pkgconfig:/usr/lib/pkgconfig:/usr/lib64/pkgconfig:/usr/pkgconfig:$PKG_CONFIG_PATH"
export LD_LIBRARY_PATH="${LOC_HOME}/lib:/usr/X11R6/lib64:/usr/lib64:$LD_LIBRARY_PATH"
 
exec "$@"

Now to run a binary we just use the wrapper

run_gapp /path/to/firefox

Next up we’ll explore building some applications like pidign, firefox, amarok, xine-lib and more.

ch0wned. adj. This is the state when you are a linux user and don't have root access. 

This is the case for a lot of people working Corporate jobs as engineers, including me.   I realized chr00ted is a more appropriate term, but then I couldn’t work 0wned into it.

So this post is the first in a serious of HOWTOs about maintaining a Linux distro out of your home directory.  This allows you to download, compile, and use the latest software while being restricted to god-awful old version of Linux.   When I say old, I’m talking about my company just “upgraded” me from Red Hat Enterprise 3 (RHEL 3), circa 2003 to Red Hat Enterprise 4 (RHEL 4) circa 2006.   If I want to use a browser or e-mail client that has the latest security patches, forget it!

Compiling

About 90% of the open source apps out there use autoconf to setup compilation using gmake.   The first thing we need to do is tell it that we are going to install this directory into our home directory.

./configure --prefix=/home/me

However, if you happen to have a lot of dependency libraries installed in your home directory we will need to setup a few environment variables too. So instead I setup a shell script that sets-up the environment and calls configure. I call this script “config_gapp”

#!/bin/sh
#
# install apps using local versions of glib
# into home directory
#
# This version setup for x86_64 full 64-bit
# Remove "64" anywhere below for a 32-bit build.
 
LOCAL_HOME=/home/me
 
export PATH=$LOCAL_HOME/bin:$PATH
 
# I try not to maintain my own gcc, but sometimes you gotta :
# export CC="$LOCAL_HOME/bin/gcc"
# export GCC=$CC
 
export CPPFLAGS="-I$LOCAL_HOME/include -I/usr/X11R6/include $CPPFLAGS"
export CFLAGS="-I$LOCAL_HOME/include -I/usr/X11R6/include $CFLAGS"
export CXXFLAGS="-I$LOCAL_HOME/include -I/usr/X11R6/include  $CXXFLAGS"
export LDFLAGS="-L$LOCAL_HOME/lib -L/usr/lib64 -L/usr/X11R6/lib64 $LDFLAGS"
export PKG_CONFIG=$LOCAL_HOME/bin/pkg-config
export PKG_CONFIG_PATH="$LOCAL_HOME/lib/pkgconfig:/usr/lib64/pkgconfig:$PKG_CONFIG_PATH"
export LD_LIBRARY_PATH="$LOCAL_HOME/lib:/usr/X11R6/lib64:/usr/lib64"
#export ACLOCAL_FLAGS="-I /home/maxb/share/aclocal"
 
./configure --prefix=$LOCAL_HOME \
  --x-includes=/usr/X11R6/include \
  --x-libraries=/usr/X11R6/lib "$@"

The astute reader will notice that I have already compiled and installed my own copy of pkg-config because the one on EL4 is too old for most things to use. I’ll cover that in the next post where I go over getting a somewhat modern version of the GTK+ and Glib libraries installed. These are required for most anything modern like firefox, thunderbird, acrobat, and flash.