LIRC on Debian Etch
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Latest revision as of 18:55, 17 April 2011
Install Debian GNU/Linux 4.0
First, you can read about installing MythTV on Debian Etch here: Installing MythTV on Debian Etch
Add LIRC to Debian GNU/Linux 4.0
Using the Debian packages
The out-of-the-box packages from Debian GNU/Linux 4.0 do not provide a complete set to start LIRC. In fact, a pre-compiled lirc-modules-XXX.deb package is missing in the distribution. Therefor, we are going to build this one ourselves using the Debian tooling.
First step: install the base LIRC packages:
apt-get install lirc lirc-modules-source
Now extract the source in the linux source tree:
cd /usr/src tar -xvzf lirc-modules.tar.gz
If you don't have your linux kernel sources available install them as well:
apt-get install linux-headers-$(uname -r) apt-get install linux-source-2.6.18 apt-get install linux-kbuild-2.6.18
This should provide you with the kernel sources for your running kernel. Now proceed with the installation of the linux kernel build tooling from Debian:
apt-get install kernel-package
This will insure you have your debian system correctly setup to build modules, it also creates the symlink /usr/src/linux to the correct header directory. if you don't have m-a command, install it using apt-get install module-assistant
Now you have everything you need to build the required lirc-modules package. Proceed with configuring your required lirc modules using:
As example, for a MCE remote you need to check 'gpio', 'i2c' and 'mceusb'. The tool will give the opportunity to build the modules automagically. Re-run the step above if you need to change the required modules, or need to build modules for a newer kernel revision.
To build modules:
m-a a-i lirc
Wait for the build to complete and see in /usr/src for the resulting lirc-modules-XXX.deb package. Install that one using:
dpkg -i /usr/src/lirc-modules-*.deb
Now load the base module:
And try to start the LIRC daemon:
and you have a complete LIRC installation on your system. You may need to add the 'lirc_i2c' module to the file /etc/modules to make it auto-load.
Manually building LIRC from source
Download lirc from http://www.lirc.org/software.html then follow the instructions in the INSTALL file. As of 0.8.2, the steps are to run the following commands in the extracted directory (I have added the command to install the required 'dialog' package):
You need to download the latest LIRC source, it will be the first link at the top. As of 2008/March/20 it is lirc-0.8.2.tar.bz2. Download it and save it to /tmp directory.
You will need to uncompress the .bz2
cd /tmp tar -xvjf lirc-0.8.2.tar.bz2
The folder name lirc-0.8.2 will changes as they release newer versions.
apt-get install dialog ./setup.sh && make install
You will then need to load the module:
depmod -a modprobe lirc_i2c
You will then need to make a device file usable by the mythtv user:
chmod 666 /dev/lircd
This command checks to make sure that the device files are present. The resulting list of entries should include '/dev/lirc , /dev/lirc0 , /dev/lircd , and /dev/lircm'.
This command will start lircd, which will add the remote control functionality to your system. This may require you to add '-d /dev/lirc?' substituting the ? with a number, which will probably be 0. If you receive an error when running this as listed below, then re-run the command with the -d switch listed above with a specific /dev/lirc? entry lisetd.
To test your work, run (include the '-d /dev/lirc0' if you needed to include this in running lircd):
Now press a few buttons on your remote while aiming it at the receiver. You should see some text spit out on your screen. If you don't, then something isn't working.
You will then need to get a lircrc file, and a lircd.conf:. These files will reside in the following locations:
/home/mythtv/.lircrc /home/mythtv/.mythtv/lircrc /etc/lirc/lircrc /etc/lirc/lircd.conf