It’s not the first time that happened…submitted a couple of drivers for a video-capture card we built at my previous job back around ’05 or ’06.
I submitted this a few months ago for my Raspberry Pi beer-fridge controller. I picked the parts and put it together without checking to see first if the necessary driver support was already in place…derp! Fortunately, it’s relatively easy to correct such deficiencies when you have source-code access to the whole system.