The IR receiver in the dreambox can handle any remote control. I've been testing with my TV remote and the hardware reports the received codes, since the interrupt counter for IR-RX at /proc/interrupts is incremented.

But the code is in the binary only driver head.ko. I've been trying to disasemble it and I have discovered an interesting function: register_ir_decoder. Every time a infrared code is received the function registered is called and if it recognices the code, the IR led blinks.

In the newest firmware based on kernel 2.6.12, this function is in an standalone module called dreambox_rc2.ko. I would be great to convince dreambox to release the source code of this module, just as an example of how to write a remote control driver.