PROC文件系统

1. seq_file

参考： http://blog.chinaunix.net/uid-26084833-id-1754437.html

 

seq_file的结构体定义：

struct seq_file {

char *buf;

   3:     size_t size;

   4:     size_t from;

   5:     size_t count;

   6:     loff_t index;

   7:     loff_t read_pos;

   8:     u64 version;

struct mutex lock;

struct seq_operations *op;

private;

  12: };