Configuration updates of the SCSI2SD do not require installation of
the driver.
Firmware updates require installation of he UsbDk driver.

scsi2sd-util6 is distributed under the GPL v3+ licence. The source is
available at http://www.codesrc.com/gitweb/index.cgi?p=SCSI2SD-V6.git

UsbDk is distributed under the Apache licence.
The version distributed with scsi2sd-util6 is unmodified from the files
and source released at https://github.com/daynix/UsbDk/releases

dfu-util is distributed under the GPL V2 license.
The version distributed with scsi2sd-util6 is modified to support the
UsbDk driver. The modified source is available at
http://www.codesrc.com/gitweb/index.cgi?p=SCSI2SD-V6.git
