Linux/proc/devices file differs from/dev directory

A few explanations on the content of the title:

1. Proc Directory is a virtual file system that provides interaction for Linux user space and kernel space

It only exists in memory and does not account for actual flash or hard disk space

2.the device in the/proc/devices/is generated when the driver is loaded

3, thedevice under/dev/is generated by creating a device node, the user through the device node to access the driver in the kernel

Linux/proc/devices file differs from/dev directory