Liangxu Linux

Mar 7, 2021 · Fundamentals

Understanding UART and Linux Serial Driver Architecture: From Basics to Implementation

This article provides a comprehensive guide to UART fundamentals, communication protocols, baud‑rate calculations, RS232/RS485 differences, flow‑control mechanisms, and the Linux TTY serial framework, including driver registration, data flow, key kernel structures, and practical C code examples for embedded development.