I am running stock 4.4.2 with twrp 22.214.171.124 and it has knock on feature. Once i flash your kernel it no longer works. I did read the op and used the ota app and flashed it via your app, thinking it would detect the correct verison. Was i wrong?
It downloaded the version itself i did not see an option to get the knock or no knock version in the app.
install via recovery and be happy.