ADLINK cPCI-3510 Series - Manual (Page 115)

BIOS Setup Utility 101
cPCI-3510
8.3.8 USB Configuration
You can use this screen to select options for the USB Configura-
tion. Use the up and down < Arrow > keys to select an item. The
screen is shown below.
Legacy USB Support
Enables legacy USB support. Auto option disables legacy support
if no USB devices are connected. Disable option will keep USB
devices available only for EFI applications. Set this value to
Enabled/Disabled/Auto.