IR decoding with BPF

Posted Jul 16, 2018 16:53 UTC (Mon) by mchehab (subscriber, #41156)
In reply to: IR decoding with BPF by meyert
Parent article: IR decoding with BPF

> So why is any of this actually done in kernel code?

The answer is the same to this question: "why an USB HID scancode is translated to key inside the Kernel?"

Because on an embedded device, the IR may be the only input device. Think for example on a Set Top Box or a TV set: usually, all the user has is the remote controller. It needs to be able to handle key presses since when the Kernel starts.