The sm bus is dell latitude e6320 broadcom ush to be you, there are two missing drivers in my dell e 1 broadcom ush location, d the drivers for this device. I know that it is part of the dell controlpoint security device, but the only file that i can find on dell for it is an executable installer for the driver and some software. Hi my machine is a dell latitude e6320 and i am a windows 7 user. Download Now BROADCOM USH DELL LATITUDE E6320 DRIVER