Le 05/06/2012 03:42, Charles Manning a écrit : >> I found the problem: my loff_t type is 32 bits... > Just curious... What compiler are you using? Hi, My embedded target is Analog Devices Blackfin processor, I'm using the Visual DSP toolchain. For the test on my Windows PC, I used GCC 4.4.0 under MinGW 3.15.2. BTW, the 'oflags' from fcntl.h have different values than CONFIG_YAFFSFS_PROVIDE_VALUES. So I can't compile dtest.c with YAFFS values. I can compile stephanetest.c if I remove the includes and keep only yaffsfs.h. On both platforms, loff_t is not defined. So I defined it to int. -- Stephane Lesage