Email me for the gory details (for FC7) – but see a more up-to-date post for the same thing (much cleaner) in Fedora 9.

Here are the keycodes that I was able to uncover using showkey -k.
Unfortunately, the kernel logs don’t complain when I hit the unknown keys so there’s probably no point in setting up the extra scancodes (particularly since this Belkin MediaPilot keyboard is not the primary keyboard in the system, and the setkeycodes documentation [...]

The Situation
I have a Hauppauge PVR350 card, which includes an IR receiver (connected via a 2.5mm socket on the card), but I also need to control an external cable box via an IR blaster (bought from irblaster.info), and have COM1 free.
Actually, since I have a Belkin MediaPilot keyboard (mostly) working, I won’t need to use [...]

Simple schematic for building serial interface :
http://fly.cc.fer.hr/~mozgic/UIR/http://www.lirc.org/receivers.html
On 9-pin Serial plug :Ground : Pin 5Data : Pin 1 (actually DCD)
Existing Hauppauge interface :http://www.irblaster.info/hauppauge_ir.html
2.5mm ConnectorTSOP 2238 IR ReceiverTip VCCRing SignalShield Ground
VSOP (or Everlight) IRM2238http://www.datasheetarchive.com/preview/1808114.htmlVCC=5V, 38KHz
USB Pinout :http://pinouts.ru/SerialPortsCables/usb_cable_pinout.shtmlPin 1 : VCC (+5V)Pin 2 : Data-Pin 3 : Data+Pin 4 : Ground
Even simpler circuit for IR [...]