Linux 内核游记 (4)

文章目录

• TTY子系统

• • 为什么是TTY

  • 青铜时代

  • • TTY 驱动程序

    • TTY核心

    • • TTY 端口

    • TTY线路规程

  • 白银时代

  • • Serial驱动程序

    • • UART端口

    • Serial核心

  • 黄金时代

• 参考资料

TTY子系统

为什么是TTY

因为

Dark regions within the kernel’s core challenge even the bravest developers. Complex coding structures and intricate requirements mean that nearly all systems depend on older code that has remained largely unchanged for decades due to developer apprehensions about its limitations. Arguably, no other component within this system is as foreboding as its serial terminal (