The ProcDetails kernel module shows informations about `procfs` files.

If a proc file is associated with a kernel module, the name of the module is shown. Otherwise, the module can only show that the file is created by the kernel.

The following other informations are shown:

* `Mode`: The permissions of the file:

* `Format`: Bitmask defined in `include/uapi/linux/stat.h`. Regular files are 100.

* `Permissions`: Bitmask defined in `include/uapi/linux/stat.h`.

* `Count`: Uses of the file

* `In use`: Number of processes currently using the file.

* `File Operations`: Shows the name of the file operations struct and all defined functions pointers.

sudo modprobe procdetails

./procinfo /proc/cpuinfo

------------------------------------------------------------

/proc/cpuinfo

------------------------------------------------------------

> Module : Kernel

> Mode

Format : 100

Permissions : 444

> Count : 1

> In use : 0

> File Operations : Yes

proc_cpuinfo_operations = {

.open = cpuinfo_open,

.read = seq_read,

.release = seq_release,

.llseek = seq_lseek,

};