Hardware • CEC with Intel NUC8i3BEH: /dev/cec0 not found

Hello,

Hi all,
I use an Intel NUC8i3BEH, which has HDMI CEC and an internal CEC header, which typically is used for the Pulse Eight CEC adapter. I plan to use CEC for a project (not the Pulse Eight adapter, I'm planning CEC communication with an Arduino).
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I've learnt by your post that CEC stands for:

CEC (Consumer Electronics Control) is the control protocol found in HDMI®.

It seems that the support for CEC devices is from CEC kernel modules:

• https://sources.debian.org/src/linux/6.1.76-1/drivers/media/cec/

• The Linux driver implementer’s API guide » Media subsystem kernel internal API » 6. CEC Kernel Support

Since I suppose your arduino device is an USB-CEC adapter, you could start checking if the Linux kernel recognizes the adapter as an USB device with the command:If yes, you can check what is the usb kernel module (driver) used with the following command from usbutils package:You can also check system logs for messages:Not all CEC kernel modules are active by default in Debian kernels:Therefore, if you are using a CEC device that is supported by a currently inactive kernel module, you will need to recompile the kernel to enable it.

Hope this helps. Let me know.

Statistics: Posted by Aki — 2024-02-11 08:35 — Replies 1 — Views 62

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