NOTE: This page has been superseded. Please see this post which has a newer patch & scripts.
I have a basic driver that appears to make this work, based on I2C captures from the Hauppauge windows software. I will say
right now that I have no idea how the hardware actually works — various people have made suggestions but it was not enough
for me to figure it out (search the ivtv-devel list on “cheapi2c/lmilk” for more information).
Here’s a basic HOWTO:
1. Get lirc-0.7.2-pre2 or your favourite version
(the patch is against that version).
2. Get my patch
3. Unpack lirc and apply the patch:
tar xfj lirc-0.7.2pre2.tar.bz2
patch -p4 < pvr150.patch
Choose ‘TV card’, ‘Hauppauge TV card’, save quit then
make && make install
4. Now you need the ‘firmware’. This is
a set of data blocks that correspond to those generated by the windows software. This goes in /usr/lib/hotplug/firmware on my
debian system. Note that the entire firmware is kept in memory (currently 170K) so this makes the driver quite large.
(I have no plans to sort this out, memory is cheap).
5. Check everything is working so far:
modprobe lirc_dev debug=1 && modprobe lirc_i2c debug=1
Check the syslog output. This should report something like:
Aug 7 23:10:52 soapbox kernel: lirc_i2c: chip found @ 0x70 (Hauppauge IR TX (PVR1
Aug 7 23:10:52 soapbox kernel: ivtv: i2c attach [client=Hauppauge IR TX (PVR150),
Aug 7 23:10:52 soapbox kernel: lirc_dev: lirc_register_plugin: sample_rate: 0
Aug 7 23:10:52 soapbox kernel: lirc_i2c: firmware of size 174351 loaded
Aug 7 23:10:52 soapbox kernel: lirc_i2c: 470 codesets loaded
Aug 7 23:10:52 soapbox kernel: lirc_i2c: Hauppauge PVR-150 IR blaster: firmware version 1.3.0
This means that the driver has detected and initialised the IR blaster hardware — if you don’t see that then let me know.
6. You need to configure lircd, and find out which codeset you are going to be using. The easiest way is to start
with this configuration file which contains
key definitions for everything in the database.
7. Start lircd. You need two of them as one device is created for the receiver and one for the sender, I use:
modprobe lirc_dev && modprobe lirc_i2c debug=1
lircd --device=/dev/lirc0 --output=/dev/lircd0 --pidfile=/var/run/lirc0.pid
lircd --device=/dev/lirc1 --output=/dev/lircd1 --pidfile=/var/run/lirc1.pid
# mythtv likes /dev/lircd
ln -s /dev/lircd0 /dev/lircd
You need to check in /dev or syslog to see which “lircN” files were created for which device. The IR blaster will
always be second due to the probing order.
8. Next you need to work out which codeset to use, this is the tricky bit. For this I have
send_power, a script that just sends the power
command in every single codeset (470 at present).
You need to stick the IR blaster on the IR receiver of box that you intend to control, being quite careful to position
it correctly — it has a very short range and took me a couple of goes to get right. Some people have reported needing
to have the device attached back to front.
If you can’t get this to work:
a) My software doesn’t work properly
b) The device you are trying to control is not supported (please check against the Windows stuff if possible)
c) You didn’t get the device in the right place — did I mention it was touchy?
9. Once you know which codeset you want you can go and delete all of the rest from lircd.conf. They are named “XXX_key”
so should be pretty easy to find. I also gave the keys standard names (0-9).
10. To get mythtv to work, configure a channel change script for your device. There’s one
here that should work out of the box if you
rename the number keys.
That’s it, good luck!