Linux kernel module simulating touch sensor with the spacebar key
Sometimes ago I had some work to do with a GPIO-based proximity sensor
but I had forgotten to take the sensor and the board with me, so I hacked
this thing up simulating the /sys/class/gpio/gpioN/value interface
Compile and insert the module
$ make && sudo insmod ./faketouch.ko
If everything went alright, there should be a folder under /sys/kernel/debug/faketouch.
It supports polling and reading.