when i write flash with yaffs2 i found the bigger logical chunk number has a smaller physical chunk number, and the 0# logical chunk number equal to the -1# physical chunk number.just as below shows when i try to write 12000 bytes to the flash which data area is 1984 bytes and oob is 64 bytes as i mod the driver.
logical chunk number : physical chunk number 
0:-1 
1:4864 
2:4865 
3:4866 
4:4867 
5:4869 
6:4868
is this corretly?
----
Regards,
Ezio.