Hello Chris,
sorry it took a while *again*. I wanted to integrate all the other small changes to flashchips.c due to the pileup of reports in the last months. But they are too many so I have created the patch on top of the last committed state, i.e. r1782.
The attached patch should apply cleanly to said revision which is easily obtainable and buildable, see http://flashrom.org/Downloads#Installation_from_source
It should just work. Please report back with the flashrom log of a write operation that actually does change the content of the chip (i.e. which writes an image different to the existing data on the chip), e.g. flashrom -p ft2232_spi... -w <filename> -o F25L32PA-write.log Thanks!