Creating udev rules is a large topic. The next step is to convert the symbols to configure the systemd service. Wiring up the IR transceiver June 8th Update: Furthermore, since ir-keytable finds the device you know that the driver is part of the rc subsystem. I have completed a soldered circuit prototype, complete with a full parts list and high resolution build pictures. The proper irsend command for each tuner can be placed in a separate channel changing script, and then specified as an external channel changing program for the appropriate video source in the Mythtv-setup program. The easy way to check is to try the remotes without lircd running.

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Check that all buttons generate output when testing. Bright and tuned to nm wavelength.

LIRC – MythTV Official Wiki

Another method is to boot the system without the usb device connected, and do a lsmod. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Several of the pre-defined remotes uses non-standard key symbols.

The channel changing inpt turns that into an invocation of irsend, and LIRC transmits the appropriate codes via your infra-red transmitter. The lirc configuration consists of inut files described in Appendix If your frontend and backend are the same machine then the same LIRC instance can be used for both IR blasting and receiving at the same time.


As shipped, lircd has a service which can be enabled using systemctl start irexec.

Update: Adding a receiver

March 9th Update: Post Your Answer Discard By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. On the other hand, this is flexible and since irexec runs as root it can in the end do anything.

Otherwise proceed to Getting the key symbols using lirc driver. If you have more lirrc one remote you will be using, simply concatenate the files together for your lircd.

Other posts about lirc LIRC won’t transmit irsend: Some links to iinput such:. Make sure to share your remote with the lirc community by sending the config to lirc bartelmus.

If you can find your device here, look in lircd. In some cases there is more info in the driver documentation.

Setting up a remote control using lirc – Raspberry Pi Stack Exchange

The frontend log should contain clues that it was not able to connect to the lircd socket. The lircd-setup script which by default is run before the lircd service runs this setup code as root.

Make sure the name ends with. Obviously you should not use a remote that goes with another appliance in the same room as your MythTV setup, because the remote button presses will be picked up by both MythTV and your other device.


LIRC needs to be installed on your frontend if you are using it with a remote control device the most common use. To do this, you need to define udev rules.

This device name is not stable and typically varies after a reboot. Generally speaking everything that can receive or send infrared signals can be supported by LIRC.

You might try to search the web before walking this path, though. Instead you need a star topology setup. To apply the rule to the rc0 device, note there is no unique protocol compared to the rc1 device. You can install and invoke lrc package as follows:.

After receiving a keypress event the kernel will start emitting repeat events to applications until lircd-uinput emits a corresponding release event.

You may also need to install specific device drivers for the device itself. Most channel numbers are more than one digit, and you may have to pause between digits. For more information please see the the Ubuntu Launchpad bug Lirv above failed for me for two reasons – one, my device is not an S-plus, and two, I have more than one of the same card.