FF

FF is a simple linux char device that when read from returns bytes containing only 0xff.

Compilation

$ make

Installation

$ sudo make load

This will insmod the module and copy a simple udev rule which changes the permissions of /dev/ff to 0666

Usage

$ dd if=/dev/ff of=<output-goes-here>

Deinstallation

$ sudo make unload

This will rmmod the module and remove the rule from udev