console9.txt

linux/kd.h文件中介绍了ioctl函数能够使用的命令

Example:
	#include <stdio.h>
	#include <fcntl.h>
	#include <unistd.h>
	#include <sys/stat.h>
	#include <linux/kd.h>
	#include <sys/types.h>
	#include <sys/ioctl.h>

	#define ERROR -1

	void main()
	{
          int fd;
          long mode;

          /* To be used as the fd in ioctl(). */
	  if ((fd = open("/dev/console", O_NOCTTY)) == ERROR) {
	     perror("open");
	     exit(ERROR);
	  }

	  printf("w00w00!\n\n");

          if ((ioctl(fd, KDGKBMODE, &mode)) == ERROR) {
	     perror("ioctl");
	     close(fd);
	     exit(ERROR);
	  }

          printf("Keyboard in ");
          if (mode == K_RAW) printf("raw mode.\n");
          else if (mode == K_XLATE) printf("xlate mode.\n");
          else if (mode == K_MEDIUMRAW) printf("medium raw mode.\n");
          else if (mode == K_UNICODE) printf("Unicode mode.\n");
	  else printf("0x0%x\n", mode); /* For future modes.\n");


	  close(fd);
	}