time sudo ./flashrom -p serprog:dev=/dev/ttyACM0:2000000  -r ../../2012-07-08-bios.rom
flashrom v0.9.5.2-r1546 on Linux 2.6.35-32-generic (x86_64)
flashrom is free software, get the source code at http://www.flashrom.org

Calibrating delay loop... OK.
serprog: Programmer name is "serprog-duino"
Found Winbond flash chip "W25Q64" (8192 kB, SPI) on serprog.
Reading flash... done.

real	1m50.175s
user	0m1.310s
sys	0m0.040s