Linux tty串口的相关内容

文章 2023-03-06 来自：开发者社区

linux tty与串口免密登录配置

TTY自动登录关键程序getty以设置TTY1自动登录为例：编辑 /etc/systemd/system/getty@tty1.service.d/autologin.conf 添加内容：另一种方法是用systemctl edit getty@tty1.service命令，但实测debian11无法通过这种方法添加，只能手动创建配置文件，可能是systemd版本的原因。[Service] #自动....

文章 2016-04-14 来自：开发者社区

LINUX下的tty，console与串口分析

1、LINUX下TTY、CONSOLE、串口之间是怎样的层次关系？具体的函数接口是怎样的？串口是如何被调用的？ 2、printk函数是把信息发送到控制台上吧？如何让PRINTK把信息通过串口送出？或者说系统在什么地方来决定是将信息送到显示器还是串口？ 3、start_kernel中一开始就用到了printk函数（好象是printk(linux_banner什么的），在这个时候...

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