如题。 该函数的三个参数分别是什么意思。这个函数怎么使用？ 感谢！

kpp.c --------------------------------------------- #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define KPPMAJOR 240 #define MODULE_NAME "kpp" #define HOLD_IRQ MAGUS_GPIO_HOLD #define KPP_GET ...

#include linux/module.h> #include linux/init.h> #include linux/fs.h> #include linux/kdev_t.h> #include linux/cdev.h> #include linux/kernel.h> #include linux/string.h> #include asm/uaccess.h> #define DEVICE_NAME "chardev" static int chardev_open(struct inode *inodp, struct file *filp); static ssize_t chardev_read(struct file *filp, char __user *buff, size_t count, loff_t *f_pos); stati...

实现异步通知,内核的接口只有fasync_helper 和 kill_fasync,在哪里把siginfo信息置进去?

#killall -HUP inetd //让该服务重新读一次配置 # kill -9 pid //可以杀掉进程 本文来自ChinaUnix博客，如果查看原文请点：http://blog.chinaunix.net/u/28922/showart_336139.html

kill kill [options] [pids | commands] Send a signal to terminate one or more process IDs. You must own the process or be a privileged user. If no signal is specified, TERM is sent. This entry describes the /bin/kill command, which offers several powerful features. There are also built-in shell commands of the same name; the bash and ksh versions are described in Chapter 6. In particular, /bin/ki...

请问socket结构中的fasync_struct结构有什么作用呀？能解释详细点吗？

void input_handler() { 　char data[MAX_LEN]; 　int len; 　//读取并输出STDIN_FILENO上的输入 　len = read(fd, &data, MAX_LEN); 　data[len] = 0; 　printf("input available:%s\n", data); } main() { 　int oflags; 　//启动信号驱动机制 fd=open("dev/chrdev",O_RDWR); 　signal(SIGIO, input_handler); 　fcntl(fd, F_SETOWN, getpid()); printf("a\n"); 　oflags = fcntl(STDIN_FILENO, F_GETFL); printf("b\n");...