query: Can ethtool be used to print Expansion ROM version of the adapter?

Hi,

For printing the Expansion ROM version of the adapter, we were thinking if ethtool
could be used for it ?
There are fields in ethtool_drvinfo to display fw_version and driver_version. Also,
there are two reserved fields present. Are these two reserved fields already in use ?
Could anyone of the reserved field be used to print the custom adapter info like
Expansion ROM version ?

Thanks,
Hariprasad Shenai