<LDD3> 中文版 勘误+学习笔记 page 79

                没钱买英文原版的了~300RMB...伤不起啊~中文版和英文的pdf同时在看。

            第一遍已经过去了，现在是第二遍。把书中有误的地方一点点整理出来，对LDD3有兴趣，且C 有一定基础的viewer，欢迎通过邮箱联系，交流讨论：

[e-mail]（私人邮箱 非诚勿扰）

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勘误：八个日志级别字符串的定义在3.13的内核里面已经不再 include/linux/kernel.h 里面了！

在新的header file里面——include/linux/kern_levels.h

#ifndef __KERN_LEVELS_H__#define __KERN_LEVELS_H__#define KERN_SOH"\001"/* ASCII Start Of Header */#define KERN_SOH_ASCII'\001'#define KERN_EMERG<span style="white-space:pre"></span>KERN_SOH "0"/* system is unusable */#define KERN_ALERT<span style="white-space:pre"></span>KERN_SOH "1"/* action must be taken immediately */#define KERN_CRIT<span style="white-space:pre"></span>KERN_SOH "2"/* critical conditions */#define KERN_ERR<span style="white-space:pre"></span>KERN_SOH "3"/* error conditions */#define KERN_WARNINGKERN_SOH "4"/* warning conditions */#define KERN_NOTICE<span style="white-space:pre"></span>KERN_SOH "5"/* normal but significant condition */#define KERN_INFO<span style="white-space:pre"></span>KERN_SOH "6"/* informational */#define KERN_DEBUG<span style="white-space:pre"></span>KERN_SOH "7"/* debug-level messages */#define KERN_DEFAULTKERN_SOH "d"/* the default kernel loglevel *//* * Annotation for a "continued" line of log printout (only done after a * line that had no enclosing \n). Only to be used by core/arch code * during early bootup (a continued line is not SMP-safe otherwise). */#define KERN_CONT""#endif

这里的Start of header和数据通信有关系~

KERN_SOH