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Update hdmi_cec.markdown (#612)

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happyleavesaoc 2016-07-04 04:59:51 -04:00 committed by Fabian Affolter
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source/_components/hdmi_cec.markdown
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@ -25,6 +25,10 @@ The computer running Home Assistant must support CEC, and of course be connected
[libcec](https://github.com/Pulse-Eight/libcec) must be installed for this component to work. Follow the installation instructions for your environment, provided at the link. `libcec` installs Python 3 bindings, by default as a system Python module. If you are running Home Assistant in a Python virtual environment, make sure it can access the system module, by either symlinking it or using the `--system-site-packages` flag.
#### {% linkable_title Symlinking into virtual environment %}
`ln -s /usr/local/lib/python3.4/dist-packages/cec <your venv>/lib/python3.4/site-packages`
## {% linkable_title Configuration Example %}
In the following example, a Pi Zero running Home Assistant is on a TV's HDMI port 1. HDMI port 2 is attached to a AV receiver. Three devices are attached to the AV receiver on HDMI ports 1 through 3.