linux 按键应用程序

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在此非常感谢他们。

#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <sys/ioctl.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <sys/select.h>#include <sys/time.h>#include <errno.h>#include <linux/input.h>int main(void){int buttons_fd;int key_value,i=0,count;struct input_event ev_key;buttons_fd = open("/dev/input/event0", O_RDWR);if (buttons_fd < 0) {perror("open device buttons");exit(1);}for (;;) {count = read(buttons_fd,&ev_key,sizeof(struct input_event));for(i=0; i<(int)count/sizeof(struct input_event); i++)if(EV_KEY==ev_key.type)printf("type:%d,code:%d,value:%d\n", ev_key.type,ev_key.code-1,ev_key.value);if(EV_SYN==ev_key.type)printf("syn event\n\n");}close(buttons_fd);return 0;}