Yuwei Huang ywh233

Run uname -r to find your kernel's version number. It may return something like this:
```
5.4.0-47-generic
```
Run sudo apt install linux-source-$KERNEL_VERSION to grab the kernel code. $KERNEL_VERSION should be the X.X.X part of the version returned by uname -r, e.g. sudo apt install linux-source-5.4.0.

	/**
	* Simple function to parse a C enum definition. E.g. Given a string like:
	* A = 0,
	* B,
	* C = B,
	* D
	*
	* Returns a map like: {"A": 0, "B": 1, "C": 1, "D": 2}
	*
	* @param str The enum definition string to parse.

	function transpose(str, offset) {
	let nstr = '';
	for (var i = 0; i < str.length; i++) {
	const cc = str.charCodeAt(i);
	nstr += String.fromCharCode(cc + offset);
	}
	return nstr;
	}