Introduction - If you have any usage issues, please Google them yourself
" Return to Innocence- UNIX technology insider" book code. Including Bell Laboratories developed the kernel code: 1*. h (kernel headers--- macros, global variables and structure definitions, function declarations) | |---------------- conf (assembly code--- start function and utility functions, the driver generation tool mkconf, migration tool sysfix) 2dmr (device driver) 3ken (kernel code, including process scheduling, file systems, memory management, I/O management, etc.) also has the author to write some code.