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/649a4785_64586ed2 PS1, Line 9: FT232H-based devices are unable to read over 256 bytes of flash in one
One more general thought: Is there any other software running that might […]
So, with the 1536B chunk size, do you always get full URBs succeeding? i.e. it's always 1536B or nothing?
It all seems still very odd to me. I wonder if this is not some very subtle hardware issue. Do you power anything via the FT232H board? the flash chip I assume? is there anything else (e.g. the chip on some (main)board)? We could try some sort of dry-run without the flash chip, e.g. disconnect the chip, and then do a forced read by adding `-c <flashchip> -f` to a read command. That should lower the things that could go wrong hardware-wise.
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Nico Huber (Code Review)