When you are doing Migration from SCCM 2007 to SCCM 2012,you may want to remove some of the drivers which are no longer needed .
This report list all the drivers which are part of any driver package so you can take action on them before you migrate to SCCM Configmgr 2012.
Full Details :http://social.technet.microsoft.com/Forums/en-US/configmgrreporting/thread/c82cc16a-06b7-49ae-ac11-2f6399047b6a
locCI.DisplayName as DriverName,locci.CI_ID,
drivers.DriverClass as DriverClass,
drivers.DriverProvider as ProviderName,
drivers.DriverVersion as DriverVersion,
CIs.IsEnabled as DriverEnabled0
from v_CI_DriversCIs drivers
inner join v_ConfigurationItems as CIs on CIs.CI_ID=drivers.CI_ID
inner join v_LocalizedCIProperties_SiteLoc as locCI on drivers.CI_ID=locCI.CI_ID
where locCI.CI_ID not in (select ci_id from v_DriverContentToPackage)