A serial port mapping method and device based on linux or unix kernel operating system

Abstract

A serial port mapping method based on a Linux or Unix kernel operating system. The method comprises the following steps: obtaining a first serial port list from a basic input / output system (BIOS), the first serial port list storing serial port information of at least one physical serial port of a panel (S101); obtaining a second serial port list from an operating system, the second serial port list storing serial port information of at least one logic serial port of the operating system (S102); and matching the physical serial port in the first serial port list with the logic serial port in the second serial port list according to the serial port information to generate a serial port mapping file of the first serial port list and the second serial port list (S103). The method and device can automatically generate a serial port mapping file for describing a mapping relationship between a physical serial port and a logic serial port without human interference, thereby improving the efficiency and accuracy of identification and matching.

Description

technical field [0001] The invention relates to the field of serial port identification, in particular to a serial port mapping method and device based on a Linux or Unix kernel operating system. Background technique [0002] The Linux system is a multi-user, multi-task, multi-thread and multi-CPU operating system based on POSIX and UNIX. It can run major UNIX tool software, applications and network protocols, and inherits the design idea of ​​Unix with network as the core. , is a multi-user network operating system with stable performance. When accessing external devices under the Linux system, it needs to communicate through the serial port. However, the order of the logical serial ports under the Linux system may be inconsistent with the order of the physical serial ports of the panel, resulting in failure of normal communication. [0003] Existing solutions mainly use manual matching. For example, one method is to connect the hardware device to a certain physical seria...

AI Technical Summary

Problems solved by technology

However, due to the need for human participation, the manual matching method is likely to lead to problems of low efficiency and high error rate, and it will also increase additional costs due to the need for fixed hardware equipment and specific identification auxiliary software support.

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