I've used successfully flashrom 0.9.4 with my mainboard, reading (with
-r) and writing (with -w) Zotac stock BIOS (updating it to last
available version). No special flag were needed.
# ./flashrom -V
(results are attached)
Best regards.
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GNU/Linux * Slackware64 current
LU #210970 SU #12583 LM #98222/#412913