Display O Tron Hat kernel Module

No the best place to bugs/ improve/ is github.
Open a ticket and describe you want :)
The shift display is permanent it's true but this is the electronic functionnemtn of the chip.
You can check the value of of the shift and reverse.
But yes a clear_shift must be better. i'll do.
The rmmod (except if there a little timing bug) do a reset but i'll see if i can make more.
To make a lib C i suggested to fork and commit you lib. I'll accept to the master branch ;)