On Friday 24 October 2008 22:19:59 Ken Yu wrote: > Hi, all: > In yaffs_guts.h, YAFFS_MAX_CHUNK_ID is 0x000FFFFF. > If my nand flash page size is 2048 bytes, it means that the max nand size > yaffs can recognize is 2GB. > Am I right? No. That chunk Id refers to the chunk Id in a file (ie offset of chunk numbers into a file). That limits any one file to approx 2GB with 2048-byte chunks. This limit can be reasonably easily lifted to cope with larger files.