# Linux Kernel Module Cheat

### 17.7. Pseudo filesystems

Pseudo filesystems are filesystems that don’t represent actual files in a hard disk, but rather allow us to do special operations on filesystem-related system calls.

What each pseudo-file does for each related system call does is defined by its File operations.

Bibliography:

- https://superuser.com/questions/1198292/what-is-a-pseudo-file-system-in-linux

- https://en.wikipedia.org/wiki/Synthetic_file_system

- debugfs

- procfs

- sysfs

- Character devices