CUDA_Driver.libcudaMethod
libcuda()

Returns the name/path of the CUDA driver, or nothing if no driver is available.

CUDA_Driver.system_versionMethod
system_version()

Returns the version of the system driver (whether or not it's loaded). This can be used for reporting, but serves no other purpose; you really want to check the actual version of the driver loaded at run-time by calling cuDriverGetVersion.