Information storage method, system, storage medium and device based on character device

Abstract

The present invention discloses a character device-based information storage method, system, storage medium, and device, comprising: obtaining a storage area of ​​a preset size in an embedded storage device; creating a character device node for accessing abnormal data under a preset directory node of the embedded storage device, and using the storage area as the storage space of the character device node; setting a set of operation functions required to access the character device node; initializing the storage area to a preset data storage structure, the data storage structure being used to record the location of abnormal data; determining whether an abnormality occurs, and if so, calling the set of operation functions and writing the target abnormal data into the storage data structure. This reduces the impact on abnormal data during system upgrades or factory resets, and allows abnormal data to be obtained even when the storage device system is not operating normally, thereby effectively recording and reading abnormal data.

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