DebugFS is the kernel's anything-goes, no-rules interface: whenever a kernel developer needs quick access to internal details of the kernel to debug a problem, or to implement an experimental control interface, they can expose them via DebugFS. This is possible because DebugFS is not subject to the normal rules for user-space-interface stability, nor to the rules about exposing sensitive kernel information. Supporting DebugFS in Rust drivers is an important step toward being able to debug rea...