Attention is currently required from: Angel Pons, Peter Farley. Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/63798 )
Change subject: ft2232_spi: Reduce read size for FT232H ......................................................................
Patch Set 1:
(1 comment)
Commit Message:
https://review.coreboot.org/c/flashrom/+/63798/comment/17d0ec1a_4ddfbe69 PS1, Line 9: FT232H-based devices are unable to read over 256 bytes of flash in one
Is this documented anywhere? Or how did you figure this out?
I've just re-tested my UM232H (with an FT232HQ). It works without patch as it should oO
Limits in transfer size could also be due to a broken USB library/stack. Or it might be an odd revision of the chip? Seems unlikely because the FT232H is actually younger than the FT2232H. OTOH, a fake chip could be possible.
Peter, please describe your overall setup. What OS and version do you use and what library versions are used (libusb & libftdi)? What FT232H device/board do you have and where did you get it (is it rather old/new)?