A Linux kernel module that makes a character device that writes ~
.
It also makes a /dev/widetilde that prints ๏ฝ
.
Make sure you have kernel headers and shit installed and then just make
.
make clean
cleans the stuff.
insmod ./devtilde.ko
.
dmesg
should show a message: ~: Module loaded successfully~!
I've included a udev rule that sets the permissions of /dev/tilde to 0444
. You can toss it in /etc/udev/rules.d
if you want to.