Linux Kernel Module Cheat

Anonymous inodes allow getting multiple file descriptors from a single filesystem entry, which reduces namespace pollution compared to creating multiple device files:

Outcome: the test passes:

Sources:

This example gets an anonymous inode via ioctl from a debugfs entry by using anon_inode_getfd.

Reads to that inode return the sequence: 1, 10, 100, …​ 10000000, 1, 100, …​

Bibliography: https://stackoverflow.com/questions/4508998/what-is-an-anonymous-inode-in-linux/44388030#44388030