Anyone familiar with this sort of utility
EZ Loader Custom USB Firmware Loader Driver
http://www.cypress.com/?docID=4503
just to rejig USB ident to then use the firmware transfer for the particular
application ? here a digital mixer that is otherwise dead from corrupted
firmware transfer.
eg p4
" 8. Before you can use your new firmware driver you will need
to bind it with your device. This is done by loading the
serial EEPROM with the VID/PID combination defined in
the INF file you create for your custom USB device. This
is the first of two VID/PID combinations your device will
use. When the VID/PID in the EEPROM is reported to the
host, the host will invoke the wdgtldr.sys which loads your
firmware. To load your VID/PID combination in the serial
EEPROM open the EZ-USB Control Panel, ensure the
Target Field matches your target device, and download
the Vend_ax.hex example. "