2012/7/10 <Jason_Vannest@abercrombie.com>
Output from "./flashrom -V -p internal:laptop=this_is_not_a_laptop "

flashrom v0.9.5.2-r1515 on Linux 2.6.32.12-0.7-default (i686), built with libpci 3.1.7, GCC 4.5.1 20101208 [gcc-4_5-branch revision 167585], little endian
flashrom is free software, get the source code at http://www.flashrom.org

Calibrating delay loop... OS timer resolution is 1 usecs, 1774M loops per second, 10 myus = 10 us, 100 myus = 102 us, 1000 myus = 1009 us, 10000 myus = 9982 us, 4 myus = 5 us, OK.
Initializing internal programmer
No coreboot table found.
DMI string system-manufacturer: "IBM CORPORATION"
DMI string system-product-name: "4800783"
DMI string system-version: "4800783"
DMI string baseboard-manufacturer: "IBM CORPORATION"
DMI string baseboard-product-name: "P4M900/VT8251/DME1737"
DMI string baseboard-version: "<BAD INDEX>"
DMI string chassis-type: ""
DMI chassis-type is not specific enough.
The following protocols are supported: Non-SPI.

So the chipset in your POS machine is, at the moment, not recognized by flashrom.
 

No EEPROM/flash device found.
Note: flashrom can never write if the flash chip isn't found automatically.

According to this IBM web page [1] there is a "Service Processor Renesas H8S2116" [2] present.

[1] http://www-01.ibm.com/support/docview.wss?uid=pos1R1003969
[2] http://documentation.renesas.com/doc/products/mpumcu/rej09b0255_h8s2116hm.pdf