#include <stdio.h>#include "yaffs_guts.h"#include "yaffs_flashif.h"#include "yboot.h"unsigned yaffs_traceMask = 0xFFFFFFFF;static void InitDevice(yaffs_Device *dev){	// Initialise the NAND device. This should agree with what is set in yaffscfg for /boot		// /boot	// Only some of these parameters are actually used.	dev->nBytesPerChunk = YAFFS_BYTES_PER_CHUNK;	dev->nChunksPerBlock = YAFFS_CHUNKS_PER_BLOCK;	dev->startBlock = 1; // Can't use block 0	dev->endBlock = 127; // Last block in 2MB.		dev->useNANDECC = 0; // use YAFFS's ECC	dev->nShortOpCaches = 10; // Use caches	dev->genericDevice = (void *) 1;	// Used to identify the device in fstat.	dev->writeChunkToNAND = yflash_WriteChunkToNAND;	dev->readChunkFromNAND = yflash_ReadChunkFromNAND;	dev->eraseBlockInNAND = yflash_EraseBlockInNAND;	dev->initialiseNAND = yflash_InitialiseNAND;}int main(){	int oId;		char ch;	int nBytes = 0;	int fsize;		yaffs_Device dev;		printf("Test boot code\n");		InitDevice(&dev);		oId = yaffsboot_InitFile(&dev,"yyfile",&fsize);		printf("ObjectId = %d, size is %d\n",oId,fsize);		if(oId < 0)	{		printf("File not found\n");	}	else	{		printf("dumping file as text\n\n");				nBytes = 0;				while(yaffsboot_ReadByte(&ch) >= 0)		{			printf("%c",ch);			nBytes++;		}				printf("\n\n%d bytes read\n",nBytes);	}				}