After upgrading to FC9, the previously working serial port channel-changer (bought from IRblaster.info) stopped working. None of the configuration had changed. In addition to the serial port transmitter, there’s a receiver on the PVR350 card – handled by lirc_i2c After much searching, an additional option came to light : softcarrier=1 . Here are the relevant [...]

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 [...]

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 [...]