#include <sys/mman.h>#include <limits.h>#include <stdio.h>#include <stdlib.h>#include <fcntl.h>#include <unistd.h>#include <string.h>#include <time.h>#include <ctype.h>#include <errno.h>#include <sys/ioctl.h>#include <sys/types.h>#include <asm/types.h>#include <sys/select.h>#include <termios.h>#include <stropts.h>#include "LED_Config.h"#define LED_CONFIG_MAJOR 0/* Use 'k' as magic number *///#define LED_Config_IOC_MAGIC  'X'/* Please use a different 8-bit number in your code *///#define LED_Config_IOC_Status _IOWR(LED_Config_IOC_MAGIC, 9,int)//#define LED_Config_IOC_Setting _IOWR(LED_Config_IOC_MAGIC, 8,int)#define LED_Config_Data_fail                 0x4#define LED_low_Data_fail                    0x0int main(int argc, char **argv){    char *fname;	int f;	int status=1;	int ret=-1;	//int mcudata;    if (argc != 2)	{        	fprintf(stderr, "%s: Usage \"%s  <parameter>\"\n", argv[0],argv[0]);        	exit(1);    	}	    	fname="/dev/LED_Config";	status = atoi(argv[1]);    if (!(f=open(fname,O_RDWR))) {        fprintf(stderr, "%s: %s: %s\n", argv[0], fname, strerror(errno));        exit(1);    }		switch(status)		{		case 0:			ret = ioctl(f, LED_PRE_ON, &status);		//	fprintf(stderr, " COMMAND = %d\n",LED_PRE_ON);			break;		case 1:			ret = ioctl(f,LED_PRE_OFF,&status);			break;						case 2:			ret=ioctl(f,LED_PRE_BLINK,&status);			break;		case 3:			ret = ioctl(f, LED_COM_ON, &status);			break;		case 4:			ret= ioctl(f, LED_COM_OFF,&status);			break;		case 5:			ret = ioctl(f, LED_COM_BLINK,&status);			break;			default:			ret=-1;		 	break;				}//		ret = ioctl(f, LED_Config_IOC_Setting, &status);		fprintf(stderr, " LED Set status = %x\n",status);		if (ret < 0) {			fprintf(stderr, "executing this operation error\n");		}		close(f);        return ret;}