?? syscall-exam.h
字號:
//header: syscall-exam.h
#ifndef _SYSCALL_EXAM_H
#define _SYSCALL_EXAM_H
#include <linux/ioctl.h>
#undef TASK_COMM_LEN
#define TASK_COMM_LEN 16
typedef struct mychrdev_info {
pid_t user_pid;
char user_name[TASK_COMM_LEN];
unsigned int available_len;
unsigned int len;
unsigned long offset_in_ppage;
} mydev_info_t;
struct mychrdev_window {
unsigned int head;
unsigned int tail;
};
#define MYCHRDEV_IOCTL_BASE 'm'
#define MYCHRDEV_IOR(nr, size) _IOR(MYCHRDEV_IOCTL_BASE, nr, size)
#define MYCHRDEV_IOW(nr, size) _IOW(MYCHRDEV_IOCTL_BASE, nr, size)
#define MYCHRDEV_IOCTL_GET_INFO MYCHRDEV_IOR(0x01,mydev_info_t)
#define MYCHRDEV_IOCTL_SET_TRUNCATE MYCHRDEV_IOW(0x02,int)
#endif
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -