References: golang.org/x/sys/unix.CTRL_CMD

const golang.org/x/sys/unix.CTRL_CMD_NEWFAMILY

one use

	golang.org/x/sys/unix (current package)
		ztypes_linux.go#L921: 	CTRL_CMD_NEWFAMILY         = 0x1

The pages are generated with Golds v0.4.9. (GOOS=linux GOARCH=amd64)